82_FR_40643 82 FR 40479 - Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes

82 FR 40479 - Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 164 (August 25, 2017)

Page Range40479-40484
FR Document2017-17398

We are superseding Airworthiness Directive (AD) 2015-23-12, which applied to all ATR-GIE Avions de Transport R[eacute]gional Model ATR42 and ATR72 airplanes. AD 2015-23-12 required identifying the serial number and part number of the main landing gear (MLG) rear hinge pins, and replacing pins or the MLG if necessary. This AD retains the requirements of AD 2015-23-12, requires replacing certain additional MLG hinge pins, and reduces certain compliance times. This AD was prompted by a new occurrence of a cracked MLG rear hinge pin. We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 82 Issue 164 (Friday, August 25, 2017)
[Federal Register Volume 82, Number 164 (Friday, August 25, 2017)]
[Rules and Regulations]
[Pages 40479-40484]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-17398]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0516; Product Identifier 2016-NM-125-AD; Amendment 
39-19000; AD 2017-17-10]
RIN 2120-AA64


Airworthiness Directives; ATR-GIE Avions de Transport 
R[eacute]gional Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: We are superseding Airworthiness Directive (AD) 2015-23-12, 
which applied to all ATR-GIE Avions de Transport R[eacute]gional Model 
ATR42 and ATR72 airplanes. AD 2015-23-12 required identifying the 
serial number and part number of the main landing gear (MLG) rear hinge 
pins, and replacing pins or the MLG if necessary. This AD retains the 
requirements of AD 2015-23-12, requires replacing certain additional 
MLG hinge pins, and reduces certain compliance times. This AD was 
prompted by a new occurrence of a cracked MLG rear hinge pin. We are 
issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective September 29, 2017.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of September 29, 
2017.

[[Page 40480]]

    The Director of the Federal Register approved the incorporation by 
reference of certain other publications listed in this AD as of 
December 29, 2015 (80 FR 73096, November 24, 2015).

ADDRESSES: For service information identified in this final rule, 
contact ATR-GIE Avions de Transport R[eacute]gional, 1, All[eacute]e 
Pierre Nadot, 31712 Blagnac Cedex, France; telephone +33 (0) 5 62 21 62 
21; fax +33 (0) 5 62 21 67 18; email [email protected]; 
Internet http://www.aerochain.com. You may view this referenced service 
information at the FAA, Transport Standards Branch, 1601 Lind Avenue 
SW., Renton, WA. For information on the availability of this material 
at the FAA, call 425-227-1221. It is also available on the Internet at 
http://www.regulations.gov by searching for and locating Docket No. 
FAA-2017-0516.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0516; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the regulatory evaluation, any comments received, and 
other information. The address for the Docket Office (telephone 800-
647-5527) is Docket Management Facility, U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Shahram Daneshmandi, Aerospace 
Engineer, International Section, Transport Standards Branch, FAA, 1601 
Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1112; fax 
425-227-1149.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to supersede AD 2015-23-12, Amendment 39-18329 (80 FR 73096, 
November 24, 2015) (``AD 2015-23-12''). AD 2015-23-12 applied to all 
ATR-GIE Avions de Transport R[eacute]gional Model ATR42 and ATR72 
airplanes. The NPRM published in the Federal Register on May 31, 2017 
(82 FR 24906). The NPRM was prompted by a new occurrence of a cracked 
MLG rear hinge pin. The NPRM proposed to continue to require 
identifying the serial number and part number of the MLG rear hinge 
pins, and replacing pins or the MLG if necessary. The NPRM also 
proposed to require replacing certain additional MLG hinge pins, and 
reducing certain compliance times. We are issuing this AD to detect and 
correct cracked rear hinge pins, which could lead to MLG structural 
failure, possibly resulting in collapse of the MLG and consequent 
injury to the occupants of the airplane.
    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Union, has issued EASA 
Airworthiness Directive 2016-0135, dated July 8, 2016 (referred to 
after this as the Mandatory Continuing Airworthiness Information, or 
``the MCAI''), to correct an unsafe condition for all ATR-GIE Avions de 
Transport R[eacute]gional Model ATR42 and ATR72 airplanes. The MCAI 
states:

    Prompted by cases of rupture of main landing gear (MLG) rear 
hinge pin part number (P/N) D61000 encountered in service in 1994 
and 1996, DGAC [Direction G[eacute]n[eacute]rale de l'Aviation 
Civile] France issued AD 96-131-064 (B) for ATR42 aeroplanes and AD 
96-096-029 (B) for ATR72 aeroplanes to require inspection and, 
depending on findings, corrective action. Since those [French] ADs 
were issued, new occurrences of cracked rear hinge pin P/N [part 
number] D61000 were reported on ATR72 MLG. The result of subsequent 
investigation revealed that the affected pins were subjected to a 
non-detected thermal abuse done in production during grinding 
process. Analysis also showed that other MLG pin P/N's could be 
affected by the same production issue.
    This condition, if not detected and corrected, could lead to 
structural failure and consequent collapse of the MLG, possibly 
resulting in damage to the aeroplane and injury to the occupants.
    To address this potential unsafe condition, EASA issued AD 2014-
0074 [which corresponds to FAA AD 2015-23-12] to require inspection 
and, depending on findings, replacement of affected pins.
    After EASA AD 2014-0074 was issued, a new occurrence was 
reported of a cracked MLG hinge pin P/N D62055 installed on the MLG 
Side Brace of an ATR42 aeroplane. This new occurrence was also 
identified as related to a non-detected thermal abuse done in 
production during grinding process.
    Prompted by this new occurrence, Messier Bugatti Dowty (MBD) 
updated the list of MLG hinge pins affected by this unsafe condition 
by adding serial numbers (S/N), which were previously not considered 
by EASA AD 2014-0074. In addition, it was determined that the 
compliance time for replacement of pins with P/N D62055 must be 
reduced. The six affected MBD Service Bulletins (SB) were revised 
accordingly, and six new ones were also published to address this 
issue.
    For the reasons described above, this [EASA] AD retains the 
requirements of EASA AD 2014-0074, which is superseded, but 
addresses an expanded MLG hinge pin population with appropriate 
compliance time(s).

    You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0516.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM or on the determination of 
the cost to the public.

Conclusion

    We reviewed the available data and determined that air safety and 
the public interest require adopting this AD as proposed except for 
minor editorial changes. We have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    Messier-Bugatti-Dowty has issued the following service information, 
which describes procedures for inspecting and replacing the MLG hinge 
pin. These documents are distinct since they apply to different 
airplane models and different MLG hinge pin part numbers.
     Service Bulletin 631-32-213, Revision 2, dated March 15, 
2016.
     Service Bulletin 631-32-214, Revision 1, dated March 15, 
2016.
     Service Bulletin 631-32-215, Revision 1, dated March 15, 
2016.
     Service Bulletin 631-32-216, Revision 3, dated March 15, 
2016.
     Service Bulletin 631-32-219, Revision 1, dated March 15, 
2016.
     Service Bulletin 631-32-220, Revision 1, dated March 15, 
2016.
     Service Bulletin 631-32-224, dated March 15, 2016.
     Service Bulletin 631-32-231, dated March 15, 2016.
     Service Bulletin 631-32-232, Revision 1, dated March 15, 
2016.
     Service Bulletin 631-32-233, dated March 15, 2016.
     Service Bulletin 631-32-234, dated March 15, 2016.
     Service Bulletin 631-32-235, dated March 15, 2016.
    This service information is reasonably available because the 
interested parties have access to it through their normal course of 
business or by the means identified in the ADDRESSES section.

Costs of Compliance

    We estimate that this AD will affect 63 airplanes of U.S. registry.

[[Page 40481]]

    The actions required by AD 2015-23-12, and retained in this AD take 
about 8 work-hours per product, at an average labor rate of $85 per 
work-hour. Required parts will cost about $16,000 per product. Based on 
these figures, the estimated cost of the actions that are required by 
AD 2015-23-12 is $16,680 per product.
    We also estimate that it will take about 8 work-hours per product 
to comply with the basic requirements of this AD. The average labor 
rate is $85 per work-hour. Required parts will cost about $16,000 per 
product. Based on these figures, we estimate the cost of this AD on 
U.S. operators to be $1,050,840, or $16,680 per product.
    According to the manufacturer, some of the costs of this AD may be 
covered under warranty, thereby reducing the cost impact on affected 
individuals. We do not control warranty coverage for affected 
individuals. As a result, we have included all costs in our cost 
estimate.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
``Subtitle VII, Part A, Subpart III, Section 44701: General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to transport category airplanes to 
the Director of the System Oversight Division.

Regulatory Findings

    We determined that this AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed above, I certify that this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979);
    3. Will not affect intrastate aviation in Alaska; and
    4. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13   [Amended]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2015-23-12, Amendment 39-18329 (80 FR 73096, November 24, 2015), and 
adding the following new AD:

2017-17-10 ATR-GIE Avions de Transport R[eacute]gional: Amendment 
39-19000; Docket No. FAA-2017-0516; Product Identifier 2016-NM-125-
AD.

(a) Effective Date

    This AD is effective September 29, 2017.

(b) Affected ADs

    This AD replaces AD 2015-23-12, Amendment 39-18329 (80 FR 73096, 
November 24, 2015) (``AD 2015-23-12'').

(c) Applicability

    This AD applies to ATR-GIE Avions de Transport R[eacute]gional 
Model ATR42-200, -300, -320, and -500 airplanes; and ATR72-101, -
201, -102, -202, -211, -212, and -212A airplanes; certificated in 
any category; all certified models; all manufacturer serial numbers.

(d) Subject

    Air Transport Association (ATA) of America Code 32, Landing 
Gear.

(e) Reason

    This AD was prompted by a new occurrence of a cracked main 
landing gear (MLG) rear hinge pin. We are issuing this AD to detect 
and correct cracked rear hinge pins, which could lead to MLG 
structural failure, possibly resulting in collapse of the MLG and 
consequent injury to the occupants of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Retained Hinge Pin Identification and Replacement for Model ATR72 
Airplanes, With Terminating Action

    This paragraph restates the requirements of paragraph (g) of AD 
2015-23-12, with terminating action. For Model ATR72 airplanes: 
Within 12 months after December 29, 2015 (the effective date of AD 
2015-23-12), inspect for the serial number of the left-hand (LH) and 
right-hand (RH) MLG rear hinge pins having part number (P/N) D61000. 
A review of airplane maintenance records is acceptable in lieu of 
this identification if the part number and serial number of the LH 
and RH MLG rear hinge pins can be conclusively determined from that 
review. If a rear hinge pin having P/N D61000 has a serial number 
listed in Messier-Bugatti-Dowty Service Bulletin 631-32-213, dated 
December 16, 2013; or Messier-Bugatti-Dowty Service Bulletin 631-32-
216, Revision 1, dated December 17, 2013; as applicable: Within 12 
months after December 29, 2015, replace the pin with a serviceable 
part as identified in paragraph (h) of this AD, in accordance with 
the Accomplishment Instructions of Messier-Bugatti-Dowty Service 
Bulletin 631-32-213, dated December 16, 2013; or Messier-Bugatti-
Dowty Service Bulletin 631-32-216, Revision 1, dated December 17, 
2013; as applicable. Accomplishment of the actions required by 
paragraph (l) of this AD terminates the inspection required by this 
paragraph. Accomplishing the actions required by paragraph (m) or 
(o) of this AD terminates the actions required by this paragraph.

(h) Retained Definition of Serviceable Hinge Pin for Model ATR72 
Airplanes for Paragraph (g) of This AD, With No Changes

    This paragraph restates the definition in paragraph (h) of AD 
2015-23-12, with no changes. For Model ATR72 airplanes: For purposes 
of paragraph (g) of this AD, a serviceable MLG rear hinge pin is a 
pin that is specified in paragraph (h)(1) or (h)(2) of this AD.
    (1) A hinge pin that is not identified in Messier-Bugatti-Dowty 
Service Bulletin 631-32-213, dated December 16, 2013; or Messier-
Bugatti-Dowty Service Bulletin 631-32-216, Revision 1, dated 
December 17, 2013; as applicable.
    (2) A hinge pin that has been inspected and reconditioned, in 
accordance with the Accomplishment Instructions of Messier-Bugatti-
Dowty Service Bulletin 631-32-213, dated December 16, 2013; or 
Messier-Bugatti-Dowty Service Bulletin 631-32-216, Revision 1, dated 
December 17, 2013; as applicable.

[[Page 40482]]

(i) Retained MLG Pin Identification and Replacement for Model ATR72 
Airplanes, With Terminating Action

    This paragraph restates the requirements of paragraph (i) of AD 
2015-23-12, with terminating action. For Model ATR72 airplanes: At 
the earlier of the times specified in paragraphs (i)(1) and (i)(2) 
of this AD, inspect all LH and RH MLG pins for a part number and 
serial number listed in Messier-Bugatti-Dowty Service Bulletin 631-
32-214, dated January 13, 2014; or Messier-Bugatti-Dowty Service 
Bulletin 631-32-219, dated March 3, 2014; as applicable. A review of 
airplane maintenance records is acceptable in lieu of this 
inspection if the part number and serial number of the LH and RH MLG 
pin can be conclusively determined from that review. If any affected 
MLG pin is found: At the earlier of the compliance times specified 
in paragraphs (i)(1) and (i)(2) of this AD, replace the MLG with a 
serviceable MLG as identified in paragraph (j) of this AD, using a 
method approved by the Manager, International Section, Transport 
Standards Branch, FAA; or the European Aviation Safety Agency 
(EASA); or ATR-GIE Avions de Transport R[eacute]gional's EASA Design 
Organization Approval (DOA). Accomplishment of the actions required 
by paragraph (l) of this AD terminates the inspection for the part 
number and serial number of the LH and RH MLG rear hinge pins 
required by this paragraph. Accomplishment of the actions required 
by paragraph (m) or (o) of this AD terminates the actions required 
by this paragraph.
    (1) No later than the next MLG overhaul scheduled after December 
29, 2015 (the effective date of AD 2015-23-12).
    (2) Within 20,000 flight cycles or 9 years, whichever occurs 
first, accumulated since installation of the MLG on an airplane 
since new or since last overhaul, as applicable.

(j) Retained Definition of Serviceable MLG for Model ATR72 Airplanes 
for Paragraph (i) of This AD, With No Changes

    This paragraph restates the definition in paragraph (j) of AD 
2015-23-12, with no changes. For Model ATR72 airplanes: For purposes 
of paragraph (i) of this AD, a serviceable MLG is one that 
incorporates pins specified in paragraph (j)(1) or (j)(2) of this 
AD.
    (1) Pins that are not identified in Messier-Bugatti-Dowty 
Service Bulletin 631-32-214, dated January 13, 2014; or Messier-
Bugatti-Dowty Service Bulletin 631-32-219, dated March 3, 2014; as 
applicable.
    (2) Pins that have been inspected and reconditioned in 
accordance with the Accomplishment Instructions of Messier-Bugatti-
Dowty Service Bulletin 631-32-214, dated January 13, 2014; or 
Messier-Bugatti-Dowty Service Bulletin 631-32-219, dated March 3, 
2014; as applicable.

(k) Retained MLG Pin Identification and Replacement for Model ATR42 
Airplanes, With Terminating Action

    This paragraph restates the requirements of paragraph (k) of AD 
2015-23-12, with terminating action. Accomplishment of the actions 
required by paragraph (l) of this AD terminates the actions required 
by paragraph (k)(1) of this AD. Accomplishment of the actions 
required by paragraph (m) or (o) of this AD terminates the actions 
required by paragraph (k)(2) of this AD.
    (1) For Model ATR42 airplanes: Within the compliance time 
identified in paragraph (k)(1)(i) or (k)(1)(ii) of this AD, 
whichever occurs first, inspect for any LH and RH MLG pins having a 
part number and serial number listed in Messier-Bugatti-Dowty 
Service Bulletin 631-32-215, dated January 13, 2014; or Messier-
Bugatti-Dowty Service Bulletin 631-32-220, dated March 3, 2014; as 
applicable. A review of airplane maintenance records is acceptable 
in lieu of this identification if the part number and serial number 
of the LH and RH MLG pin can be conclusively determined from that 
review.
    (i) No later than the next MLG overhaul scheduled after December 
29, 2015 (the effective date of AD 2015-23-12).
    (ii) Within 20,000 flight cycles or 9 years, whichever occurs 
first, accumulated since installation of the MLG on an airplane 
since new or since last overhaul, as applicable.
    (2) If the MLG pin having a part number and serial number listed 
in Messier-Bugatti-Dowty Service Bulletin 631-32-215, dated January 
13, 2014; or Messier-Bugatti-Dowty Service Bulletin 631-32-220, 
dated March 3, 2014; as applicable; is found to be installed during 
the identification required by paragraph (k)(1) of this AD, within 
the compliance time identified in paragraph (k)(1) of this AD, 
replace the MLG with a serviceable MLG, using a method approved by 
the Manager, International Section, Transport Standards Branch, FAA; 
or the EASA; or ATR-GIE Avions de Transport R[eacute]gional's EASA 
DOA. For the purposes of this paragraph, a serviceable MLG is a part 
that has pins identified in paragraph (k)(2)(i) or (k)(2)(ii) of 
this AD.
    (i) Pins that are not listed in Messier-Bugatti-Dowty Service 
Bulletin 631-32-215, dated January 13, 2014; or Messier-Bugatti-
Dowty Service Bulletin 631-32-220, dated March 3, 2014; as 
applicable.
    (ii) Pins that have been inspected and reconditioned, in 
accordance with the Accomplishment Instructions of Messier-Bugatti-
Dowty Service Bulletin 631-32-215, dated January 13, 2014; or 
Messier-Bugatti-Dowty Service Bulletin 631-32-220, dated March 3, 
2014; as applicable.

(l) New Requirement of This AD: Hinge Pin Identification

    Within the applicable compliance time specified in, and in 
accordance with the Accomplishment Instructions of, the applicable 
Messier-Bugatti-Dowty Service Bulletin specified in figure 1 to 
paragraphs (l) through (p) of this AD, or figure 2 to paragraphs (l) 
through (p) of this AD, as applicable to the airplane model and MLG 
hinge part number, identify the serial number (S/N) of the LH and RH 
MLG hinge pins. A review of airplane maintenance records is 
acceptable in lieu of this identification if the part number and 
serial number of the LH and RH MLG hinge pins can be conclusively 
determined from that review. Accomplishment of the actions required 
by this paragraph terminates the inspections required by paragraphs 
(g), (i), and (k)(1) of this AD.

Figure 1 to Paragraphs (l) Through (p) of This AD--Model ATR72 Airplanes
------------------------------------------------------------------------
                               Applicable Messier-
     MLG hinge part Nos.          Bugatti-Dowty        Compliance time
                                service bulletins
------------------------------------------------------------------------
D60955, D60968, D60999,       Messier-Bugatti-      A or B, whichever
 D61032, D61061.               Dowty Service         occurs first:
                               Bulletin             A: Not later than
                               631[dash]32-214,      the next scheduled
                               Revision 1, dated     MLG overhaul after
                               March 15, 2016,       the effective date
                              Messier-Bugatti-       of this AD.
                               Dowty Service        B: Within 20,000
                               Bulletin              flight cycles or 9
                               631[dash]32-219,      years, whichever
                               Revision 1, dated     occurs first,
                               March 15, 2016, or.   accumulated since
                              Messier-Bugatti-       first installation
                               Dowty Service         of a MLG on an
                               Bulletin              airplane since new,
                               631[dash]32-233,      or since last
                               dated March 15,       overhaul, as
                               2016..                applicable.
D61000......................  Messier-Bugatti-      Within 12 months
                               Dowty Service         after the effective
                               Bulletin              date of this AD.
                               631[dash]32-213,
                               Revision 2, dated
                               March 15, 2016,
                              Messier-Bugatti-
                               Dowty Service
                               Bulletin
                               631[dash]32-216,
                               Revision 3, dated
                               March 15, 2016, or
                              Messier-Bugatti-
                               Dowty Service
                               Bulletin
                               631[dash]32-232,
                               Revision 1, dated
                               March 15, 2016.
------------------------------------------------------------------------


[[Page 40483]]


                    Figure 2 to Paragraphs (l) Through (p) of This AD--Model ATR42 Airplanes
----------------------------------------------------------------------------------------------------------------
                                                           Applicable Messier-Bugatti-
        MLG hinge part Nos.           Airplane model(s)      Dowty service bulletins        Compliance time
----------------------------------------------------------------------------------------------------------------
D62054, D63823, D63825............  All..................  Messier-Bugatti-Dowty       A or B, whichever occurs
                                                            Service Bulletin            first:
                                                            631[dash]32[dash]215,      A: Not later than the
                                                            Revision 1, dated March     next scheduled MLG
                                                            15, 2016,                   overhaul after the
                                                                                        effective date of this
                                                                                        AD.
                                                           Messier-Bugatti-Dowty       B: Within 20,000 flight
                                                            Service Bulletin            cycles or 9 years,
                                                            631[dash]32[dash]220,       whichever occurs first,
                                                            Revision 1, dated March     accumulated since first
                                                            15, 2016, or                installation of a MLG on
                                                           Messier-Bugatti-Dowty        an airplane since new,
                                                            Service Bulletin            or since last overhaul,
                                                            631[dash]32[dash]235,       as applicable.
                                                            dated March 15, 2016..
D56800, D56800-1, D56809, D56841,   ATR42-300............  Messier-Bugatti-Dowty       A or B, whichever occurs
 D57261, D57401, D57407, D58807,                            Service Bulletin            first:
 D62079.                                                    631[dash]32[dash]215,      A: Not later than the
                                                            Revision 1, dated March     next scheduled MLG
                                                            15, 2016,                   overhaul after the
                                                           Messier-Bugatti-Dowty        effective date of this
                                                            Service Bulletin            AD.
                                                            631[dash]32[dash]220,      B: Within 20,000 flight
                                                            Revision 1, dated March     cycles or 9 years,
                                                            15, 2016, or.               whichever occurs first,
                                                           Messier-Bugatti-Dowty        accumulated since first
                                                            Service Bulletin            installation of a MLG on
                                                            631[dash]32[dash]235,       an airplane since new,
                                                            dated March 15, 2016..      or since last overhaul,
                                                                                        as applicable.
D62055............................  All..................  Messier-Bugatti-Dowty       Within 24 months after
                                                            Service Bulletin            the effective date of
                                                            631[dash]32[dash]224,       this AD.
                                                            dated March 15, 2016,
                                                           Messier-Bugatti-Dowty
                                                            Service Bulletin
                                                            631[dash]32[dash]231,
                                                            dated March 15, 2016, or
                                                           Messier-Bugatti-Dowty
                                                            Service Bulletin 631-32-
                                                            234, dated March 15,
                                                            2016.
----------------------------------------------------------------------------------------------------------------

(m) New MLG Hinge Pin Replacement

    If, during the identification required by paragraph (l) of this 
AD, an MLG hinge pin with a serial number listed in the applicable 
Messier-Bugatti-Dowty Service Bulletin is found to be installed: 
Within the compliance time specified in figure 1 to paragraphs (l) 
through (p) of this AD, or figure 2 to paragraphs (l) through (p) of 
this AD, as applicable to airplane model and MLG hinge pin part 
number, replace each affected MLG hinge pin with a serviceable MLG 
hinge pin. The replacement must be done in accordance with the 
Accomplishment Instructions of the applicable Messier-Bugatti-Dowty 
Service Bulletin specified in figure 1 to paragraphs (l) through (p) 
of this AD, or figure 2 to paragraphs (l) through (p) of this AD, as 
applicable to the airplane model and MLG hinge part number, except 
as required by paragraph (o) of this AD. Accomplishment of the 
actions required by this paragraph terminates the actions required 
by paragraphs (g) and (i) of this AD. Accomplishment of the actions 
required by this paragraph terminates the replacement required by 
paragraph (k)(2) of this AD.

(n) New Definition of Serviceable Hinge Pins for Paragraph (m) of This 
AD

    For the purpose of paragraph (m) of this AD, a serviceable MLG 
hinge pin is a pin that is specified in paragraph (n)(1) or (n)(2) 
of this AD.
    (1) A hinge pin that does not belong to the identified batch as 
listed in the applicable Messier-Bugatti-Dowty Service Bulletin 
specified in figure 1 to paragraphs (l) through (p) of this AD, or 
figure 2 to paragraphs (l) through (p) of this AD, as applicable to 
the airplane model and MLG hinge part number.
    (2) A hinge pin that can be identified, through the MLG 
maintenance records, as having been inspected and reconditioned in 
accordance with the Accomplishment Instructions of the applicable 
Messier-Bugatti-Dowty Service Bulletin specified in figure 1 to 
paragraphs (l) through (p) of this AD, or figure 2 to paragraphs (l) 
through (p) of this AD, as applicable to the airplane model and MLG 
hinge part number.

(o) New MLG Hinge Pin Replacement Procedures

    If, during accomplishment of the MLG hinge pin replacement 
required by paragraph (m) of this AD, the applicable Messier-
Bugatti-Dowty Service Bulletin specified in figure 1 to paragraphs 
(l) through (p) of this AD, or figure 2 to paragraphs (l) through 
(p) of this AD, does not specify the MLG hinge pin replacement 
procedure, do the MLG hinge pin replacement using a method approved 
by the Manager, International Section, Transport Standards Branch, 
FAA; or the EASA; or ATR--GIE Avions de Transport R[eacute]gional's 
EASA DOA. Do the MLG hinge pin replacement at the applicable 
compliance time specified in paragraph (m) of this AD. 
Accomplishment of the actions required by this paragraph terminates 
the hinge pin replacement required by paragraphs (g), (i), and 
(k)(2) of this AD.

(p) New Parts Installation Limitation

    As of the effective date of this AD, no person may install on 
any airplane an MLG hinge pin having a part number identified in 
figure 1 to paragraphs (l) through (p) of this AD, or figure 2 to 
paragraphs (l) through (p) of this AD, and having a serial number 
defined in the applicable Messier-Bugatti-Dowty Service Bulletin 
specified in figure 1 to paragraphs (l) through (p) of this AD, or 
figure 2 to paragraphs (l) through (p) of this AD, as applicable to 
the airplane model and MLG hinge part number, unless the part can be 
conclusively identified, through the MLG maintenance records, as 
having been inspected and reconditioned in accordance with the 
Accomplishment Instructions of the applicable Messier-Bugatti-Dowty 
Service Bulletin.

(q) Credit for Previous Actions

    (1) This paragraph restates the credit provided in paragraph (l) 
of AD 2015-23-12, with no changes. This paragraph provides credit 
for the actions required by paragraph (g) of this AD, if those 
actions were performed before December 29, 2015 (the effective date 
of AD 2105-23-12), using Messier-Bugatti-Dowty Service Bulletin 631-
32-216, dated October 30, 2013, which is not incorporated by 
reference in this AD.
    (2) This paragraph provides credit for the actions required by 
paragraphs (l) and (m) of this AD, if those actions were done before 
the effective date of this AD using the applicable service 
information specified in paragraph (q)(2)(i) through (q)(2)(x) of 
this AD.
    (i) Messier-Bugatti-Dowty Service Bulletin 631-32-213, December 
16, 2013, which was incorporated by reference on December 29, 2015 
(80 FR 73096, November 24, 2015).
    (ii) Messier-Bugatti-Dowty Service Bulletin 631-32-213, Revision 
1, dated December 8, 2014, which is not incorporated by reference in 
this AD.
    (iii) Messier-Bugatti-Dowty Service Bulletin 631-32-214, dated 
January 13, 2014, which was incorporated by reference on December 
29, 2015 (80 FR 73096, November 24, 2015).
    (iv) Messier-Bugatti-Dowty Service Bulletin 631-32-215, dated 
January 13, 2014, which was incorporated by reference on December 
29, 2015 (80 FR 73096, November 24, 2015).
    (v) Messier-Bugatti-Dowty Service Bulletin 631-32-216, dated 
October 30, 2013, which is not incorporated by reference in this AD.
    (vi) Messier-Bugatti-Dowty Service Bulletin 631-32-216, Revision 
1, dated December 17, 201, which was incorporated by reference on 
December 29, 2015 (80 FR 73096, November 24, 2015).
    (vii) Messier-Bugatti-Dowty Service Bulletin 631-32-216, 
Revision 2, dated December 8, 2014, which is not incorporated by 
reference in this AD.

[[Page 40484]]

    (viii) Messier-Bugatti-Dowty Service Bulletin 631-32-219, dated 
March 3, 2014, which was incorporated by reference on December 29, 
2015 (80 FR 73096, November 24, 2015).
    (ix) Messier-Bugatti-Dowty Service Bulletin 631-32-220, dated 
March 3, 2014, which was incorporated by reference on December 29, 
2015 (80 FR 73096, November 24, 2015).
    (x) Messier-Bugatti-Dowty Service Bulletin 631-32-232, dated 
December 8, 2014, which is not incorporated by reference in this AD.

(r) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
International Section, Transport Standards Branch, FAA, has the 
authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, 
send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the manager of the International Branch, send it to the 
attention of the person identified in paragraph (s)(2) of this AD. 
Information may be emailed to: [email protected].
    (i) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (ii) AMOCs approved previously for AD 2015-23-12 are approved as 
AMOCs for the corresponding provisions of this AD.
    (2) Contacting the Manufacturer: As of the effective date of 
this AD, for any requirement in this AD to obtain corrective actions 
from a manufacturer, the action must be accomplished using a method 
approved by the Manager, International Section, Transport Standards 
Branch, FAA; or the EASA; or ATR--GIE Avions de Transport 
R[eacute]gional's EASA DOA. If approved by the DOA, the approval 
must include the DOA-authorized signature.

(s) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) EASA Airworthiness Directive 2016-0135, dated July 8, 2016, 
for related information. This MCAI may be found in the AD docket on 
the Internet at http://www.regulations.gov by searching for and 
locating Docket No. FAA-2017-0516.
    (2) For more information about this AD, contact Shahram 
Daneshmandi, Aerospace Engineer, International Section, Transport 
Standards Branch, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; 
telephone 425-227-1112; fax 425-227-1149.
    (3) Service information identified in this AD that is not 
incorporated by reference is available at the addresses specified in 
paragraphs (t)(5) and (t)(6) of this AD.

(t) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless this AD specifies otherwise.
    (3) The following service information was approved for IBR on 
September 29, 2017.
    (i) Messier-Bugatti-Dowty Service Bulletin 631-32-213, Revision 
2, dated March 15, 2016.
    (ii) Messier-Bugatti-Dowty Service Bulletin 631-32-214, Revision 
1, dated March 15, 2016.
    (iii) Messier-Bugatti-Dowty Service Bulletin 631-32-215, 
Revision 1, dated March 15, 2016.
    (iv) Messier-Bugatti-Dowty Service Bulletin 631-32-216, Revision 
3, dated March 15, 2016.
    (v) Messier-Bugatti-Dowty Service Bulletin 631-32-219, Revision 
1, dated March 15, 2016.
    (vi) Messier-Bugatti-Dowty Service Bulletin 631-32-220, Revision 
1, dated March 15, 2016.
    (vii) Messier-Bugatti-Dowty Service Bulletin 631-32-224, dated 
March 15, 2016.
    (viii) Messier-Bugatti-Dowty Service Bulletin 631-32-231, dated 
March 15, 2016.
    (ix) Messier-Bugatti-Dowty Service Bulletin 631-32-232, Revision 
1, dated March 15, 2016.
    (x) Messier-Bugatti-Dowty Service Bulletin 631-32-233, dated 
March 15, 2016.
    (xi) Messier-Bugatti-Dowty Service Bulletin 631-32-234, dated 
March 15, 2016.
    (xii) Messier-Bugatti-Dowty Service Bulletin 631-32-235, dated 
March 15, 2016.
    (4) The following service information was approved for IBR on 
December 29, 2015 (80 FR 73096, November 24, 2015).
    (i) Messier-Bugatti-Dowty Service Bulletin 631-32-213, dated 
December 16, 2013.
    (ii) Messier-Bugatti-Dowty Service Bulletin 631-32-214, dated 
January 13, 2014.
    (iii) Messier-Bugatti-Dowty Service Bulletin 631-32-215, dated 
January 13, 2014.
    (iv) Messier-Bugatti-Dowty Service Bulletin 631-32-216, Revision 
1, dated December 17, 2013. Pages 4, 5, and 8 of this service 
bulletin are the original issue and are dated October 30, 2013.
    (v) Messier-Bugatti-Dowty Service Bulletin 631-32-219, dated 
March 3, 2014.
    (vi) Messier-Bugatti-Dowty Service Bulletin 631-32-220, dated 
March 3, 2014.
    (5) For service information identified in this AD, contact ATR-
GIE Avions de Transport R[eacute]gional, 1, All[eacute]e Pierre 
Nadot, 31712 Blagnac Cedex, France; telephone +33 (0) 5 62 21 62 21; 
fax +33 (0) 5 62 21 67 18; email [email protected]; 
Internet http://www.aerochain.com.
    (6) You may view this service information at the FAA, Transport 
Standards Branch, 1601 Lind Avenue SW., Renton, WA. For information 
on the availability of this material at the FAA, call 425-227-1221.
    (7) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on August 8, 2017.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2017-17398 Filed 8-24-17; 8:45 am]
BILLING CODE 4910-13-P



                                                                Federal Register / Vol. 82, No. 164 / Friday, August 25, 2017 / Rules and Regulations                                              40479

                                             (a) Effective Date                                      found in 14 CFR 39.19. In accordance with             Airplanes, Attention: Contractual & Data
                                               This AD is effective September 29, 2017.              14 CFR 39.19, send your request to your               Services (C&DS), 2600 Westminster Blvd.,
                                                                                                     principal inspector or local Flight Standards         MC 110–SK57, Seal Beach, CA 90740–5600;
                                             (b) Affected ADs                                        District Office, as appropriate. If sending           telephone 562–797–1717; Internet https://
                                               None.                                                 information directly to the manager of the            www.myboeingfleet.com.
                                                                                                     certification office, send it to the attention of        (4) You may view this service information
                                             (c) Applicability                                       the person identified in paragraph (k) of this        at the FAA, Transport Standards Branch,
                                                This AD applies to all The Boeing                    AD. Information may be emailed to: 9–ANM–             1601 Lind Avenue SW., Renton, WA. For
                                             Company Model 737–300, –400, and –500                   LAACO–AMOC-Requests@faa.gov.                          information on the availability of this
                                             series airplanes, certificated in any category.            (2) Before using any approved AMOC,                material at the FAA, call 425–227–1221.
                                                                                                     notify your appropriate principal inspector,             (5) You may view this service information
                                             (d) Subject                                             or lacking a principal inspector, the manager         that is incorporated by reference at the
                                               Air Transport Association (ATA) of                    of the local flight standards district office/        National Archives and Records
                                             America Code 57, Wings.                                 certificate holding district office.                  Administration (NARA). For information on
                                                                                                        (3) An AMOC that provides an acceptable            the availability of this material at NARA, call
                                             (e) Unsafe Condition
                                                                                                     level of safety may be used for any repair,           202–741–6030, or go to: http://
                                                This AD was prompted by a manufacturer’s             modification, or alteration required by this          www.archives.gov/federal-register/cfr/ibr-
                                             review that showed that the fuel tank access            AD if it is approved by the Boeing                    locations.html.
                                             door at wing buttock line 191.00 did not have           Commercial Airplanes Organization
                                             an engineered ground path with the mating                                                                        Issued in Renton, Washington, on August
                                                                                                     Designation Authorization (ODA) that has
                                             wing structure. We are issuing this AD to                                                                     9, 2017.
                                                                                                     been authorized by the Manager, Los Angeles
                                             prevent an ungrounded path that could result            ACO Branch, to make those findings. To be             Dionne Palermo,
                                             in an increased risk of ignition and                    approved, the repair method, modification             Acting Director, System Oversight Division,
                                             subsequent fuel tank explosion in the event             deviation, or alteration deviation must meet          Aircraft Certification Service.
                                             of a lightning strike.                                  the certification basis of the airplane, and the      [FR Doc. 2017–17399 Filed 8–24–17; 8:45 am]
                                             (f) Compliance                                          approval must specifically refer to this AD.          BILLING CODE 4910–13–P
                                                                                                        (4) Except as required by paragraph (i) of
                                                Comply with this AD within the
                                                                                                     this AD: For service information that
                                             compliance times specified, unless already
                                                                                                     contains steps that are labeled as Required
                                             done.                                                                                                         DEPARTMENT OF TRANSPORTATION
                                                                                                     for Compliance (RC), the provisions of
                                             (g) New Door Assembly, Electrical Bond                  paragraphs (j)(4)(i) and (j)(4)(ii) of this AD
                                                                                                                                                           Federal Aviation Administration
                                             Check, and Related Corrective Actions                   apply.
                                                Within 36 months after the effective date               (i) The steps labeled as RC, including
                                                                                                     substeps under an RC step and any figures             14 CFR Part 39
                                             of this AD: Install a new door assembly, do
                                             a check of the electrical bond, and do all              identified in an RC step, must be done to
                                                                                                     comply with the AD. If a step or substep is           [Docket No. FAA–2017–0516; Product
                                             applicable related investigative and                                                                          Identifier 2016–NM–125–AD; Amendment
                                             corrective actions, in accordance with the              labeled ‘‘RC Exempt,’’ then the RC
                                                                                                     requirement is removed from that step or              39–19000; AD 2017–17–10]
                                             Accomplishment Instructions of Boeing
                                             Service Bulletin 737–57–1320, dated October             substep. An AMOC is required for any
                                                                                                     deviations to RC steps, including substeps            RIN 2120–AA64
                                             7, 2016, except as required by paragraph (i)
                                             of this AD. Do all applicable related                   and identified figures.
                                                                                                        (ii) Steps not labeled as RC may be                Airworthiness Directives; ATR–GIE
                                             investigative and corrective actions before
                                                                                                     deviated from using accepted methods in               Avions de Transport Régional
                                             further flight.
                                                                                                     accordance with the operator’s maintenance            Airplanes
                                             (h) Revise the Maintenance or Inspection                or inspection program without obtaining
                                             Program                                                 approval of an AMOC, provided the RC steps,           AGENCY:  Federal Aviation
                                                Prior to or concurrently with                        including substeps and identified figures, can        Administration (FAA), Department of
                                             accomplishment of the actions required by               still be done as specified, and the airplane          Transportation (DOT).
                                             paragraph (g) of this AD, or within 30 days             can be put back in an airworthy condition.            ACTION: Final rule.
                                             after the effective date of this AD, whichever
                                                                                                     (k) Related Information
                                             occurs later: Revise the maintenance or                                                                       SUMMARY:   We are superseding
                                             inspection program, as applicable, to                     For more information about this AD,                 Airworthiness Directive (AD) 2015–23–
                                             incorporate Airworthiness Limitation 28–                contact Serj Harutunian, Aerospace Engineer,
                                                                                                                                                           12, which applied to all ATR–GIE
                                             AWL–30, ‘‘Upper Wing Fuel Tank Access                   Propulsion Section, FAA, Los Angeles ACO
                                                                                                     Branch, 3960 Paramount Boulevard,                     Avions de Transport Régional Model
                                             Panel—Lightning Protection Electrical Design
                                             Features,’’ as specified in Boeing 737–100/             Lakewood, CA 90712–4137; phone: 562–627–              ATR42 and ATR72 airplanes. AD 2015–
                                             200/200C/300/400/500 Airworthiness                      5254; fax: 562–627–5210; email:                       23–12 required identifying the serial
                                             Limitations (AWLs) and Certification                    serj.harutunian@faa.gov.                              number and part number of the main
                                             Maintenance Requirements (CMRs) D6–                                                                           landing gear (MLG) rear hinge pins, and
                                                                                                     (l) Material Incorporated by Reference
                                             38278–CMR, dated May 2016.                                                                                    replacing pins or the MLG if necessary.
                                                                                                        (1) The Director of the Federal Register           This AD retains the requirements of AD
                                             (i) Service Information Exception                       approved the incorporation by reference
                                                                                                                                                           2015–23–12, requires replacing certain
                                                Where Boeing Service Bulletin 737–57–                (IBR) of the service information listed in this
                                                                                                     paragraph under 5 U.S.C. 552(a) and 1 CFR             additional MLG hinge pins, and reduces
                                             1320, dated October 7, 2016, specifies to
                                             contact Boeing for repair instructions, and             part 51.                                              certain compliance times. This AD was
                                             specifies that action as Required for                      (2) You must use this service information          prompted by a new occurrence of a
                                             Compliance (RC), this AD requires repair                as applicable to do the actions required by           cracked MLG rear hinge pin. We are
                                             using a method approved in accordance with              this AD, unless the AD specifies otherwise.           issuing this AD to address the unsafe
pmangrum on DSK3GDR082PROD with RULES




                                             the procedures specified in paragraph (j) of               (i) Boeing Service Bulletin 737–57–1320,           condition on these products.
                                             this AD.                                                dated October 7, 2016.
                                                                                                                                                           DATES: This AD is effective September
                                                                                                        (ii) Boeing 737–100/200/200C/300/400/500
                                             (j) Alternative Methods of Compliance                   Airworthiness Limitations (AWLs) and                  29, 2017.
                                             (AMOCs)                                                 Certification Maintenance Requirements                   The Director of the Federal Register
                                                (1) The Manager, Los Angeles ACO Branch,             (CMRs) D6–38278–CMR, dated May 2016.                  approved the incorporation by reference
                                             FAA, has the authority to approve AMOCs                    (3) For service information identified in          of certain publications listed in this AD
                                             for this AD, if requested using the procedures          this AD, contact Boeing Commercial                    as of September 29, 2017.


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                                             40480              Federal Register / Vol. 82, No. 164 / Friday, August 25, 2017 / Rules and Regulations

                                                The Director of the Federal Register                 pins, and replacing pins or the MLG if                  You may examine the MCAI in the
                                             approved the incorporation by reference                 necessary. The NPRM also proposed to                  AD docket on the Internet at http://
                                             of certain other publications listed in                 require replacing certain additional                  www.regulations.gov by searching for
                                             this AD as of December 29, 2015 (80 FR                  MLG hinge pins, and reducing certain                  and locating Docket No. FAA–2017–
                                             73096, November 24, 2015).                              compliance times. We are issuing this                 0516.
                                             ADDRESSES: For service information                      AD to detect and correct cracked rear
                                                                                                                                                           Comments
                                             identified in this final rule, contact                  hinge pins, which could lead to MLG
                                             ATR–GIE Avions de Transport Régional,                  structural failure, possibly resulting in               We gave the public the opportunity to
                                             1, Allée Pierre Nadot, 31712 Blagnac                   collapse of the MLG and consequent                    participate in developing this AD. We
                                             Cedex, France; telephone +33 (0) 5 62                   injury to the occupants of the airplane.              received no comments on the NPRM or
                                             21 62 21; fax +33 (0) 5 62 21 67 18;                       The European Aviation Safety Agency                on the determination of the cost to the
                                             email continued.airworthiness@atr.fr;                   (EASA), which is the Technical Agent                  public.
                                             Internet http://www.aerochain.com. You                  for the Member States of the European
                                                                                                                                                           Conclusion
                                             may view this referenced service                        Union, has issued EASA Airworthiness
                                             information at the FAA, Transport                       Directive 2016–0135, dated July 8, 2016                 We reviewed the available data and
                                             Standards Branch, 1601 Lind Avenue                      (referred to after this as the Mandatory              determined that air safety and the
                                             SW., Renton, WA. For information on                     Continuing Airworthiness Information,                 public interest require adopting this AD
                                             the availability of this material at the                or ‘‘the MCAI’’), to correct an unsafe                as proposed except for minor editorial
                                             FAA, call 425–227–1221. It is also                      condition for all ATR–GIE Avions de                   changes. We have determined that these
                                             available on the Internet at http://                    Transport Régional Model ATR42 and                   minor changes:
                                             www.regulations.gov by searching for                    ATR72 airplanes. The MCAI states:                       • Are consistent with the intent that
                                             and locating Docket No. FAA–2017–                          Prompted by cases of rupture of main               was proposed in the NPRM for
                                             0516.                                                   landing gear (MLG) rear hinge pin part                correcting the unsafe condition; and
                                                                                                     number (P/N) D61000 encountered in service              • Do not add any additional burden
                                             Examining the AD Docket                                 in 1994 and 1996, DGAC [Direction Générale          upon the public than was already
                                                                                                     de l’Aviation Civile] France issued AD 96–            proposed in the NPRM.
                                                You may examine the AD docket on                     131–064 (B) for ATR42 aeroplanes and AD
                                             the Internet at http://                                 96–096–029 (B) for ATR72 aeroplanes to                Related Service Information Under 1
                                             www.regulations.gov by searching for                    require inspection and, depending on                  CFR Part 51
                                             and locating Docket No. FAA–2017–                       findings, corrective action. Since those
                                             0516; or in person at the Docket                        [French] ADs were issued, new occurrences               Messier-Bugatti-Dowty has issued the
                                             Management Facility between 9 a.m.                      of cracked rear hinge pin P/N [part number]           following service information, which
                                             and 5 p.m., Monday through Friday,                      D61000 were reported on ATR72 MLG. The                describes procedures for inspecting and
                                             except Federal holidays. The AD docket                  result of subsequent investigation revealed           replacing the MLG hinge pin. These
                                                                                                     that the affected pins were subjected to a            documents are distinct since they apply
                                             contains this AD, the regulatory                        non-detected thermal abuse done in
                                             evaluation, any comments received, and                                                                        to different airplane models and
                                                                                                     production during grinding process. Analysis          different MLG hinge pin part numbers.
                                             other information. The address for the                  also showed that other MLG pin P/N’s could
                                                                                                                                                             • Service Bulletin 631–32–213,
                                             Docket Office (telephone 800–647–5527)                  be affected by the same production issue.
                                                                                                        This condition, if not detected and                Revision 2, dated March 15, 2016.
                                             is Docket Management Facility, U.S.
                                                                                                     corrected, could lead to structural failure and         • Service Bulletin 631–32–214,
                                             Department of Transportation, Docket
                                                                                                     consequent collapse of the MLG, possibly              Revision 1, dated March 15, 2016.
                                             Operations, M–30, West Building
                                                                                                     resulting in damage to the aeroplane and                • Service Bulletin 631–32–215,
                                             Ground Floor, Room W12–140, 1200
                                                                                                     injury to the occupants.                              Revision 1, dated March 15, 2016.
                                             New Jersey Avenue SE., Washington,                         To address this potential unsafe condition,          • Service Bulletin 631–32–216,
                                             DC 20590.                                               EASA issued AD 2014–0074 [which                       Revision 3, dated March 15, 2016.
                                             FOR FURTHER INFORMATION CONTACT:                        corresponds to FAA AD 2015–23–12] to                    • Service Bulletin 631–32–219,
                                             Shahram Daneshmandi, Aerospace                          require inspection and, depending on
                                                                                                                                                           Revision 1, dated March 15, 2016.
                                             Engineer, International Section,                        findings, replacement of affected pins.
                                                                                                        After EASA AD 2014–0074 was issued, a                • Service Bulletin 631–32–220,
                                             Transport Standards Branch, FAA, 1601                                                                         Revision 1, dated March 15, 2016.
                                                                                                     new occurrence was reported of a cracked
                                             Lind Avenue SW., Renton, WA 98057–                      MLG hinge pin P/N D62055 installed on the               • Service Bulletin 631–32–224, dated
                                             3356; telephone 425–227–1112; fax                       MLG Side Brace of an ATR42 aeroplane. This            March 15, 2016.
                                             425–227–1149.                                           new occurrence was also identified as related           • Service Bulletin 631–32–231, dated
                                             SUPPLEMENTARY INFORMATION:                              to a non-detected thermal abuse done in               March 15, 2016.
                                             Discussion
                                                                                                     production during grinding process.                     • Service Bulletin 631–32–232,
                                                                                                        Prompted by this new occurrence, Messier           Revision 1, dated March 15, 2016.
                                                                                                     Bugatti Dowty (MBD) updated the list of
                                               We issued a notice of proposed                                                                                • Service Bulletin 631–32–233, dated
                                             rulemaking (NPRM) to amend 14 CFR                       MLG hinge pins affected by this unsafe
                                                                                                     condition by adding serial numbers (S/N),             March 15, 2016.
                                             part 39 to supersede AD 2015–23–12,                     which were previously not considered by                 • Service Bulletin 631–32–234, dated
                                             Amendment 39–18329 (80 FR 73096,                        EASA AD 2014–0074. In addition, it was                March 15, 2016.
                                             November 24, 2015) (‘‘AD 2015–23–                       determined that the compliance time for                 • Service Bulletin 631–32–235, dated
                                             12’’). AD 2015–23–12 applied to all                     replacement of pins with P/N D62055 must              March 15, 2016.
                                             ATR–GIE Avions de Transport Régional                   be reduced. The six affected MBD Service                This service information is reasonably
                                             Model ATR42 and ATR72 airplanes.                        Bulletins (SB) were revised accordingly, and          available because the interested parties
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                                             The NPRM published in the Federal                       six new ones were also published to address           have access to it through their normal
                                             Register on May 31, 2017 (82 FR 24906).                 this issue.
                                                                                                        For the reasons described above, this
                                                                                                                                                           course of business or by the means
                                             The NPRM was prompted by a new                          [EASA] AD retains the requirements of EASA            identified in the ADDRESSES section.
                                             occurrence of a cracked MLG rear hinge                  AD 2014–0074, which is superseded, but
                                             pin. The NPRM proposed to continue to                                                                         Costs of Compliance
                                                                                                     addresses an expanded MLG hinge pin
                                             require identifying the serial number                   population with appropriate compliance                  We estimate that this AD will affect
                                             and part number of the MLG rear hinge                   time(s).                                              63 airplanes of U.S. registry.


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                                                                Federal Register / Vol. 82, No. 164 / Friday, August 25, 2017 / Rules and Regulations                                             40481

                                                The actions required by AD 2015–23–                  not have a substantial direct effect on               (e) Reason
                                             12, and retained in this AD take about                  the States, on the relationship between                  This AD was prompted by a new
                                             8 work-hours per product, at an average                 the national government and the States,               occurrence of a cracked main landing gear
                                             labor rate of $85 per work-hour.                        or on the distribution of power and                   (MLG) rear hinge pin. We are issuing this AD
                                             Required parts will cost about $16,000                  responsibilities among the various                    to detect and correct cracked rear hinge pins,
                                             per product. Based on these figures, the                levels of government.                                 which could lead to MLG structural failure,
                                                                                                                                                           possibly resulting in collapse of the MLG and
                                             estimated cost of the actions that are                    For the reasons discussed above, I                  consequent injury to the occupants of the
                                             required by AD 2015–23–12 is $16,680                    certify that this AD:                                 airplane.
                                             per product.                                              1. Is not a ‘‘significant regulatory
                                                We also estimate that it will take                                                                         (f) Compliance
                                                                                                     action’’ under Executive Order 12866;
                                             about 8 work-hours per product to                                                                                Comply with this AD within the
                                                                                                       2. Is not a ‘‘significant rule’’ under the          compliance times specified, unless already
                                             comply with the basic requirements of
                                                                                                     DOT Regulatory Policies and Procedures                done.
                                             this AD. The average labor rate is $85
                                                                                                     (44 FR 11034, February 26, 1979);
                                             per work-hour. Required parts will cost                                                                       (g) Retained Hinge Pin Identification and
                                             about $16,000 per product. Based on                       3. Will not affect intrastate aviation in           Replacement for Model ATR72 Airplanes,
                                             these figures, we estimate the cost of                  Alaska; and                                           With Terminating Action
                                             this AD on U.S. operators to be                           4. Will not have a significant                         This paragraph restates the requirements of
                                             $1,050,840, or $16,680 per product.                     economic impact, positive or negative,                paragraph (g) of AD 2015–23–12, with
                                                According to the manufacturer, some                  on a substantial number of small entities             terminating action. For Model ATR72
                                             of the costs of this AD may be covered                  under the criteria of the Regulatory                  airplanes: Within 12 months after December
                                             under warranty, thereby reducing the                    Flexibility Act.                                      29, 2015 (the effective date of AD 2015–23–
                                                                                                                                                           12), inspect for the serial number of the left-
                                             cost impact on affected individuals. We                 List of Subjects in 14 CFR Part 39                    hand (LH) and right-hand (RH) MLG rear
                                             do not control warranty coverage for                                                                          hinge pins having part number (P/N) D61000.
                                             affected individuals. As a result, we                     Air transportation, Aircraft, Aviation              A review of airplane maintenance records is
                                             have included all costs in our cost                     safety, Incorporation by reference,                   acceptable in lieu of this identification if the
                                             estimate.                                               Safety.                                               part number and serial number of the LH and
                                                                                                                                                           RH MLG rear hinge pins can be conclusively
                                             Authority for This Rulemaking                           Adoption of the Amendment                             determined from that review. If a rear hinge
                                                Title 49 of the United States Code                     Accordingly, under the authority                    pin having P/N D61000 has a serial number
                                             specifies the FAA’s authority to issue                  delegated to me by the Administrator,                 listed in Messier-Bugatti-Dowty Service
                                                                                                                                                           Bulletin 631–32–213, dated December 16,
                                             rules on aviation safety. Subtitle I,                   the FAA amends 14 CFR part 39 as                      2013; or Messier-Bugatti-Dowty Service
                                             section 106, describes the authority of                 follows:                                              Bulletin 631–32–216, Revision 1, dated
                                             the FAA Administrator. ‘‘Subtitle VII:                                                                        December 17, 2013; as applicable: Within 12
                                             Aviation Programs,’’ describes in more                  PART 39—AIRWORTHINESS                                 months after December 29, 2015, replace the
                                             detail the scope of the Agency’s                        DIRECTIVES                                            pin with a serviceable part as identified in
                                             authority.                                                                                                    paragraph (h) of this AD, in accordance with
                                                We are issuing this rulemaking under                 ■ 1. The authority citation for part 39               the Accomplishment Instructions of Messier-
                                             the authority described in ‘‘Subtitle VII,              continues to read as follows:                         Bugatti-Dowty Service Bulletin 631–32–213,
                                                                                                                                                           dated December 16, 2013; or Messier-Bugatti-
                                             Part A, Subpart III, Section 44701:                         Authority: 49 U.S.C. 106(g), 40113, 44701.        Dowty Service Bulletin 631–32–216,
                                             General requirements.’’ Under that                                                                            Revision 1, dated December 17, 2013; as
                                             section, Congress charges the FAA with                  § 39.13   [Amended]
                                                                                                                                                           applicable. Accomplishment of the actions
                                             promoting safe flight of civil aircraft in              ■ 2. The FAA amends § 39.13 by                        required by paragraph (l) of this AD
                                             air commerce by prescribing regulations                 removing Airworthiness Directive (AD)                 terminates the inspection required by this
                                             for practices, methods, and procedures                  2015–23–12, Amendment 39–18329 (80                    paragraph. Accomplishing the actions
                                             the Administrator finds necessary for                                                                         required by paragraph (m) or (o) of this AD
                                                                                                     FR 73096, November 24, 2015), and                     terminates the actions required by this
                                             safety in air commerce. This regulation                 adding the following new AD:                          paragraph.
                                             is within the scope of that authority
                                                                                                     2017–17–10 ATR–GIE Avions de Transport
                                             because it addresses an unsafe condition                    Régional: Amendment 39–19000; Docket
                                                                                                                                                           (h) Retained Definition of Serviceable Hinge
                                             that is likely to exist or develop on                                                                         Pin for Model ATR72 Airplanes for
                                                                                                         No. FAA–2017–0516; Product Identifier
                                             products identified in this rulemaking                                                                        Paragraph (g) of This AD, With No Changes
                                                                                                         2016–NM–125–AD.
                                             action.                                                                                                          This paragraph restates the definition in
                                                This AD is issued in accordance with                 (a) Effective Date                                    paragraph (h) of AD 2015–23–12, with no
                                             authority delegated by the Executive                      This AD is effective September 29, 2017.            changes. For Model ATR72 airplanes: For
                                             Director, Aircraft Certification Service,                                                                     purposes of paragraph (g) of this AD, a
                                                                                                     (b) Affected ADs                                      serviceable MLG rear hinge pin is a pin that
                                             as authorized by FAA Order 8000.51C.                                                                          is specified in paragraph (h)(1) or (h)(2) of
                                                                                                       This AD replaces AD 2015–23–12,
                                             In accordance with that order, issuance                 Amendment 39–18329 (80 FR 73096,                      this AD.
                                             of ADs is normally a function of the                    November 24, 2015) (‘‘AD 2015–23–12’’).                  (1) A hinge pin that is not identified in
                                             Compliance and Airworthiness                                                                                  Messier-Bugatti-Dowty Service Bulletin 631–
                                             Division, but during this transition                    (c) Applicability                                     32–213, dated December 16, 2013; or
                                             period, the Executive Director has                         This AD applies to ATR–GIE Avions de               Messier-Bugatti-Dowty Service Bulletin 631–
                                             delegated the authority to issue ADs                    Transport Régional Model ATR42–200, –300,            32–216, Revision 1, dated December 17,
                                             applicable to transport category                        –320, and –500 airplanes; and ATR72–101,              2013; as applicable.
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                                                                                                     –201, –102, –202, –211, –212, and –212A                  (2) A hinge pin that has been inspected and
                                             airplanes to the Director of the System
                                                                                                     airplanes; certificated in any category; all          reconditioned, in accordance with the
                                             Oversight Division.                                     certified models; all manufacturer serial             Accomplishment Instructions of Messier-
                                             Regulatory Findings                                     numbers.                                              Bugatti-Dowty Service Bulletin 631–32–213,
                                                                                                                                                           dated December 16, 2013; or Messier-Bugatti-
                                               We determined that this AD will not                   (d) Subject                                           Dowty Service Bulletin 631–32–216,
                                             have federalism implications under                        Air Transport Association (ATA) of                  Revision 1, dated December 17, 2013; as
                                             Executive Order 13132. This AD will                     America Code 32, Landing Gear.                        applicable.



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                                             40482                   Federal Register / Vol. 82, No. 164 / Friday, August 25, 2017 / Rules and Regulations

                                             (i) Retained MLG Pin Identification and                       purposes of paragraph (i) of this AD, a               Dowty Service Bulletin 631–32–215, dated
                                             Replacement for Model ATR72 Airplanes,                        serviceable MLG is one that incorporates pins         January 13, 2014; or Messier-Bugatti-Dowty
                                             With Terminating Action                                       specified in paragraph (j)(1) or (j)(2) of this       Service Bulletin 631–32–220, dated March 3,
                                                This paragraph restates the requirements of                AD.                                                   2014; as applicable; is found to be installed
                                             paragraph (i) of AD 2015–23–12, with                            (1) Pins that are not identified in Messier-        during the identification required by
                                             terminating action. For Model ATR72                           Bugatti-Dowty Service Bulletin 631–32–214,            paragraph (k)(1) of this AD, within the
                                             airplanes: At the earlier of the times specified              dated January 13, 2014; or Messier-Bugatti-           compliance time identified in paragraph
                                             in paragraphs (i)(1) and (i)(2) of this AD,                   Dowty Service Bulletin 631–32–219, dated              (k)(1) of this AD, replace the MLG with a
                                                                                                           March 3, 2014; as applicable.                         serviceable MLG, using a method approved
                                             inspect all LH and RH MLG pins for a part
                                                                                                             (2) Pins that have been inspected and
                                             number and serial number listed in Messier-                                                                         by the Manager, International Section,
                                                                                                           reconditioned in accordance with the
                                             Bugatti-Dowty Service Bulletin 631–32–214,                                                                          Transport Standards Branch, FAA; or the
                                                                                                           Accomplishment Instructions of Messier-
                                             dated January 13, 2014; or Messier-Bugatti-                                                                         EASA; or ATR–GIE Avions de Transport
                                                                                                           Bugatti-Dowty Service Bulletin 631–32–214,
                                             Dowty Service Bulletin 631–32–219, dated                                                                            Régional’s EASA DOA. For the purposes of
                                                                                                           dated January 13, 2014; or Messier-Bugatti-
                                             March 3, 2014; as applicable. A review of                                                                           this paragraph, a serviceable MLG is a part
                                                                                                           Dowty Service Bulletin 631–32–219, dated
                                             airplane maintenance records is acceptable in                                                                       that has pins identified in paragraph (k)(2)(i)
                                                                                                           March 3, 2014; as applicable.
                                             lieu of this inspection if the part number and                                                                      or (k)(2)(ii) of this AD.
                                             serial number of the LH and RH MLG pin can                    (k) Retained MLG Pin Identification and                 (i) Pins that are not listed in Messier-
                                             be conclusively determined from that review.                  Replacement for Model ATR42 Airplanes,                Bugatti-Dowty Service Bulletin 631–32–215,
                                             If any affected MLG pin is found: At the                      With Terminating Action                               dated January 13, 2014; or Messier-Bugatti-
                                             earlier of the compliance times specified in                     This paragraph restates the requirements of        Dowty Service Bulletin 631–32–220, dated
                                             paragraphs (i)(1) and (i)(2) of this AD, replace              paragraph (k) of AD 2015–23–12, with                  March 3, 2014; as applicable.
                                             the MLG with a serviceable MLG as                             terminating action. Accomplishment of the               (ii) Pins that have been inspected and
                                             identified in paragraph (j) of this AD, using                 actions required by paragraph (l) of this AD          reconditioned, in accordance with the
                                             a method approved by the Manager,                             terminates the actions required by paragraph          Accomplishment Instructions of Messier-
                                             International Section, Transport Standards                    (k)(1) of this AD. Accomplishment of the              Bugatti-Dowty Service Bulletin 631–32–215,
                                             Branch, FAA; or the European Aviation                         actions required by paragraph (m) or (o) of           dated January 13, 2014; or Messier-Bugatti-
                                             Safety Agency (EASA); or ATR–GIE Avions                       this AD terminates the actions required by            Dowty Service Bulletin 631–32–220, dated
                                             de Transport Régional’s EASA Design                          paragraph (k)(2) of this AD.                          March 3, 2014; as applicable.
                                             Organization Approval (DOA).                                     (1) For Model ATR42 airplanes: Within the
                                             Accomplishment of the actions required by                     compliance time identified in paragraph               (l) New Requirement of This AD: Hinge Pin
                                             paragraph (l) of this AD terminates the                       (k)(1)(i) or (k)(1)(ii) of this AD, whichever         Identification
                                             inspection for the part number and serial                     occurs first, inspect for any LH and RH MLG             Within the applicable compliance time
                                             number of the LH and RH MLG rear hinge                        pins having a part number and serial number           specified in, and in accordance with the
                                             pins required by this paragraph.                              listed in Messier-Bugatti-Dowty Service
                                                                                                                                                                 Accomplishment Instructions of, the
                                             Accomplishment of the actions required by                     Bulletin 631–32–215, dated January 13, 2014;
                                                                                                                                                                 applicable Messier-Bugatti-Dowty Service
                                             paragraph (m) or (o) of this AD terminates the                or Messier-Bugatti-Dowty Service Bulletin
                                             actions required by this paragraph.                                                                                 Bulletin specified in figure 1 to paragraphs (l)
                                                                                                           631–32–220, dated March 3, 2014; as
                                                (1) No later than the next MLG overhaul                    applicable. A review of airplane maintenance          through (p) of this AD, or figure 2 to
                                             scheduled after December 29, 2015 (the                        records is acceptable in lieu of this                 paragraphs (l) through (p) of this AD, as
                                             effective date of AD 2015–23–12).                             identification if the part number and serial          applicable to the airplane model and MLG
                                                (2) Within 20,000 flight cycles or 9 years,                number of the LH and RH MLG pin can be                hinge part number, identify the serial number
                                             whichever occurs first, accumulated since                     conclusively determined from that review.             (S/N) of the LH and RH MLG hinge pins. A
                                             installation of the MLG on an airplane since                     (i) No later than the next MLG overhaul            review of airplane maintenance records is
                                             new or since last overhaul, as applicable.                    scheduled after December 29, 2015 (the                acceptable in lieu of this identification if the
                                                                                                           effective date of AD 2015–23–12).                     part number and serial number of the LH and
                                             (j) Retained Definition of Serviceable MLG                       (ii) Within 20,000 flight cycles or 9 years,       RH MLG hinge pins can be conclusively
                                             for Model ATR72 Airplanes for Paragraph                       whichever occurs first, accumulated since             determined from that review.
                                             (i) of This AD, With No Changes                               installation of the MLG on an airplane since          Accomplishment of the actions required by
                                                This paragraph restates the definition in                  new or since last overhaul, as applicable.            this paragraph terminates the inspections
                                             paragraph (j) of AD 2015–23–12, with no                          (2) If the MLG pin having a part number            required by paragraphs (g), (i), and (k)(1) of
                                             changes. For Model ATR72 airplanes: For                       and serial number listed in Messier-Bugatti-          this AD.

                                                                          FIGURE 1 TO PARAGRAPHS (l) THROUGH (p) OF THIS AD—MODEL ATR72 AIRPLANES
                                                  MLG hinge part Nos.                     Applicable Messier-Bugatti-Dowty service bulletins                                Compliance time

                                             D60955, D60968, D60999,                    Messier-Bugatti-Dowty Service Bulletin 631-32–214,              A or B, whichever occurs first:
                                               D61032, D61061.                           Revision 1, dated March 15, 2016,                              A: Not later than the next scheduled MLG overhaul
                                                                                        Messier-Bugatti-Dowty Service Bulletin 631-32–219,                after the effective date of this AD.
                                                                                         Revision 1, dated March 15, 2016, or                           B: Within 20,000 flight cycles or 9 years, whichever oc-
                                                                                        Messier-Bugatti-Dowty Service Bulletin 631-32–233,                curs first, accumulated since first installation of a
                                                                                         dated March 15, 2016.                                            MLG on an airplane since new, or since last over-
                                                                                                                                                          haul, as applicable.
                                             D61000 .................................   Messier-Bugatti-Dowty Service Bulletin 631-32–213,              Within 12 months after the effective date of this AD.
                                                                                         Revision 2, dated March 15, 2016,
                                                                                        Messier-Bugatti-Dowty Service Bulletin 631-32–216,
                                                                                         Revision 3, dated March 15, 2016, or
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                                                                                        Messier-Bugatti-Dowty Service Bulletin 631-32–232,
                                                                                         Revision 1, dated March 15, 2016.




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                                                                   Federal Register / Vol. 82, No. 164 / Friday, August 25, 2017 / Rules and Regulations                                                        40483

                                                                         FIGURE 2 TO PARAGRAPHS (l) THROUGH (p) OF THIS AD—MODEL ATR42 AIRPLANES
                                                                                                                       Applicable Messier-Bugatti-Dowty service bul-
                                               MLG hinge part Nos.                 Airplane model(s)                                                                                       Compliance time
                                                                                                                                          letins

                                             D62054, D63823,                   All ...............................     Messier-Bugatti-Dowty    Service     Bulletin      A or B, whichever occurs first:
                                               D63825.                                                                  631-32-215, Revision 1, dated March 15,           A: Not later than the next scheduled MLG
                                                                                                                        2016,                                               overhaul after the effective date of this AD.
                                                                                                                       Messier-Bugatti-Dowty    Service     Bulletin      B: Within 20,000 flight cycles or 9 years,
                                                                                                                        631-32-220, Revision 1, dated March 15,             whichever occurs first, accumulated since
                                                                                                                        2016, or                                            first installation of a MLG on an airplane
                                                                                                                       Messier-Bugatti-Dowty    Service     Bulletin        since new, or since last overhaul, as appli-
                                                                                                                        631-32-235, dated March 15, 2016.                   cable.
                                             D56800, D56800–1,                 ATR42–300 ................              Messier-Bugatti-Dowty    Service     Bulletin      A or B, whichever occurs first:
                                               D56809, D56841,                                                          631-32-215, Revision 1, dated March 15,           A: Not later than the next scheduled MLG
                                               D57261, D57401,                                                          2016,                                               overhaul after the effective date of this AD.
                                               D57407, D58807,                                                         Messier-Bugatti-Dowty    Service     Bulletin      B: Within 20,000 flight cycles or 9 years,
                                               D62079.                                                                  631-32-220, Revision 1, dated March 15,             whichever occurs first, accumulated since
                                                                                                                        2016, or                                            first installation of a MLG on an airplane
                                                                                                                       Messier-Bugatti-Dowty    Service     Bulletin        since new, or since last overhaul, as appli-
                                                                                                                        631-32-235, dated March 15, 2016.                   cable.
                                             D62055 ........................   All ...............................     Messier-Bugatti-Dowty    Service     Bulletin      Within 24 months after the effective date of
                                                                                                                        631-32-224, dated March 15, 2016,                   this AD.
                                                                                                                       Messier-Bugatti-Dowty    Service     Bulletin
                                                                                                                        631-32-231, dated March 15, 2016, or
                                                                                                                       Messier-Bugatti-Dowty Service Bulletin 631–
                                                                                                                        32–234, dated March 15, 2016.



                                             (m) New MLG Hinge Pin Replacement                                       Bugatti-Dowty Service Bulletin specified in         (q) Credit for Previous Actions
                                                If, during the identification required by                            figure 1 to paragraphs (l) through (p) of this         (1) This paragraph restates the credit
                                             paragraph (l) of this AD, an MLG hinge pin                              AD, or figure 2 to paragraphs (l) through (p)       provided in paragraph (l) of AD 2015–23–12,
                                             with a serial number listed in the applicable                           of this AD, as applicable to the airplane           with no changes. This paragraph provides
                                             Messier-Bugatti-Dowty Service Bulletin is                               model and MLG hinge part number.                    credit for the actions required by paragraph
                                             found to be installed: Within the compliance                            (o) New MLG Hinge Pin Replacement                   (g) of this AD, if those actions were
                                             time specified in figure 1 to paragraphs (l)                            Procedures                                          performed before December 29, 2015 (the
                                             through (p) of this AD, or figure 2 to                                                                                      effective date of AD 2105–23–12), using
                                                                                                                        If, during accomplishment of the MLG
                                             paragraphs (l) through (p) of this AD, as                                                                                   Messier-Bugatti-Dowty Service Bulletin 631–
                                                                                                                     hinge pin replacement required by paragraph
                                             applicable to airplane model and MLG hinge                                                                                  32–216, dated October 30, 2013, which is not
                                                                                                                     (m) of this AD, the applicable Messier-
                                             pin part number, replace each affected MLG                                                                                  incorporated by reference in this AD.
                                                                                                                     Bugatti-Dowty Service Bulletin specified in
                                             hinge pin with a serviceable MLG hinge pin.                                                                                    (2) This paragraph provides credit for the
                                                                                                                     figure 1 to paragraphs (l) through (p) of this
                                             The replacement must be done in accordance                                                                                  actions required by paragraphs (l) and (m) of
                                                                                                                     AD, or figure 2 to paragraphs (l) through (p)
                                             with the Accomplishment Instructions of the                                                                                 this AD, if those actions were done before the
                                                                                                                     of this AD, does not specify the MLG hinge
                                             applicable Messier-Bugatti-Dowty Service                                pin replacement procedure, do the MLG               effective date of this AD using the applicable
                                             Bulletin specified in figure 1 to paragraphs (l)                        hinge pin replacement using a method                service information specified in paragraph
                                             through (p) of this AD, or figure 2 to                                  approved by the Manager, International              (q)(2)(i) through (q)(2)(x) of this AD.
                                             paragraphs (l) through (p) of this AD, as                               Section, Transport Standards Branch, FAA;              (i) Messier-Bugatti-Dowty Service Bulletin
                                             applicable to the airplane model and MLG                                or the EASA; or ATR—GIE Avions de                   631–32–213, December 16, 2013, which was
                                             hinge part number, except as required by                                Transport Régional’s EASA DOA. Do the              incorporated by reference on December 29,
                                             paragraph (o) of this AD. Accomplishment of                             MLG hinge pin replacement at the applicable         2015 (80 FR 73096, November 24, 2015).
                                             the actions required by this paragraph                                  compliance time specified in paragraph (m)             (ii) Messier-Bugatti-Dowty Service Bulletin
                                             terminates the actions required by paragraphs                           of this AD. Accomplishment of the actions           631–32–213, Revision 1, dated December 8,
                                             (g) and (i) of this AD. Accomplishment of the                           required by this paragraph terminates the           2014, which is not incorporated by reference
                                             actions required by this paragraph terminates                           hinge pin replacement required by                   in this AD.
                                             the replacement required by paragraph (k)(2)                            paragraphs (g), (i), and (k)(2) of this AD.            (iii) Messier-Bugatti-Dowty Service
                                             of this AD.                                                                                                                 Bulletin 631–32–214, dated January 13, 2014,
                                                                                                                     (p) New Parts Installation Limitation               which was incorporated by reference on
                                             (n) New Definition of Serviceable Hinge Pins                                                                                December 29, 2015 (80 FR 73096, November
                                                                                                                        As of the effective date of this AD, no
                                             for Paragraph (m) of This AD                                                                                                24, 2015).
                                                                                                                     person may install on any airplane an MLG
                                                For the purpose of paragraph (m) of this                             hinge pin having a part number identified in           (iv) Messier-Bugatti-Dowty Service Bulletin
                                             AD, a serviceable MLG hinge pin is a pin that                           figure 1 to paragraphs (l) through (p) of this      631–32–215, dated January 13, 2014, which
                                             is specified in paragraph (n)(1) or (n)(2) of                           AD, or figure 2 to paragraphs (l) through (p)       was incorporated by reference on December
                                             this AD.                                                                of this AD, and having a serial number              29, 2015 (80 FR 73096, November 24, 2015).
                                                (1) A hinge pin that does not belong to the                          defined in the applicable Messier-Bugatti-             (v) Messier-Bugatti-Dowty Service Bulletin
                                             identified batch as listed in the applicable                            Dowty Service Bulletin specified in figure 1        631–32–216, dated October 30, 2013, which
                                             Messier-Bugatti-Dowty Service Bulletin                                  to paragraphs (l) through (p) of this AD, or        is not incorporated by reference in this AD.
                                             specified in figure 1 to paragraphs (l) through                         figure 2 to paragraphs (l) through (p) of this         (vi) Messier-Bugatti-Dowty Service Bulletin
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                                             (p) of this AD, or figure 2 to paragraphs (l)                           AD, as applicable to the airplane model and         631–32–216, Revision 1, dated December 17,
                                             through (p) of this AD, as applicable to the                            MLG hinge part number, unless the part can          201, which was incorporated by reference on
                                             airplane model and MLG hinge part number.                               be conclusively identified, through the MLG         December 29, 2015 (80 FR 73096, November
                                                (2) A hinge pin that can be identified,                              maintenance records, as having been                 24, 2015).
                                             through the MLG maintenance records, as                                 inspected and reconditioned in accordance              (vii) Messier-Bugatti-Dowty Service
                                             having been inspected and reconditioned in                              with the Accomplishment Instructions of the         Bulletin 631–32–216, Revision 2, dated
                                             accordance with the Accomplishment                                      applicable Messier-Bugatti-Dowty Service            December 8, 2014, which is not incorporated
                                             Instructions of the applicable Messier-                                 Bulletin.                                           by reference in this AD.



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                                             40484              Federal Register / Vol. 82, No. 164 / Friday, August 25, 2017 / Rules and Regulations

                                                (viii) Messier-Bugatti-Dowty Service                    (2) You must use this service information             Issued in Renton, Washington, on August
                                             Bulletin 631–32–219, dated March 3, 2014,               as applicable to do the actions required by           8, 2017.
                                             which was incorporated by reference on                  this AD, unless this AD specifies otherwise.          Dionne Palermo,
                                             December 29, 2015 (80 FR 73096, November                   (3) The following service information was          Acting Director, System Oversight Division,
                                             24, 2015).                                              approved for IBR on September 29, 2017.               Aircraft Certification Service.
                                                (ix) Messier-Bugatti-Dowty Service Bulletin             (i) Messier-Bugatti-Dowty Service Bulletin
                                                                                                                                                           [FR Doc. 2017–17398 Filed 8–24–17; 8:45 am]
                                             631–32–220, dated March 3, 2014, which was              631–32–213, Revision 2, dated March 15,
                                             incorporated by reference on December 29,                                                                     BILLING CODE 4910–13–P
                                                                                                     2016.
                                             2015 (80 FR 73096, November 24, 2015).                     (ii) Messier-Bugatti-Dowty Service Bulletin
                                                (x) Messier-Bugatti-Dowty Service Bulletin           631–32–214, Revision 1, dated March 15,
                                             631–32–232, dated December 8, 2014, which               2016.                                                 DEPARTMENT OF HEALTH AND
                                             is not incorporated by reference in this AD.               (iii) Messier-Bugatti-Dowty Service                HUMAN SERVICES
                                             (r) Other FAA AD Provisions                             Bulletin 631–32–215, Revision 1, dated
                                                                                                     March 15, 2016.                                       Food and Drug Administration
                                                The following provisions also apply to this
                                                                                                        (iv) Messier-Bugatti-Dowty Service Bulletin
                                             AD:
                                                                                                     631–32–216, Revision 3, dated March 15,               21 CFR Part 121
                                                (1) Alternative Methods of Compliance
                                                                                                     2016.
                                             (AMOCs): The Manager, International                                                                           [Docket No. FDA–2013–N–1425]
                                                                                                        (v) Messier-Bugatti-Dowty Service Bulletin
                                             Section, Transport Standards Branch, FAA,
                                             has the authority to approve AMOCs for this             631–32–219, Revision 1, dated March 15,
                                                                                                     2016.                                                 Mitigation Strategies To Protect Food
                                             AD, if requested using the procedures found
                                             in 14 CFR 39.19. In accordance with 14 CFR                 (vi) Messier-Bugatti-Dowty Service Bulletin        Against Intentional Adulteration: What
                                             39.19, send your request to your principal              631–32–220, Revision 1, dated March 15,               You Need To Know About the Food
                                             inspector or local Flight Standards District            2016.                                                 and Drug Administration Regulation:
                                             Office, as appropriate. If sending information             (vii) Messier-Bugatti-Dowty Service                Small Entity Compliance Guide;
                                             directly to the manager of the International            Bulletin 631–32–224, dated March 15, 2016.            Availability
                                             Branch, send it to the attention of the person             (viii) Messier-Bugatti-Dowty Service
                                             identified in paragraph (s)(2) of this AD.              Bulletin 631–32–231, dated March 15, 2016.            AGENCY:    Food and Drug Administration,
                                             Information may be emailed to: 9-ANM-116-                  (ix) Messier-Bugatti-Dowty Service Bulletin        HHS.
                                             AMOC-REQUESTS@faa.gov.                                  631–32–232, Revision 1, dated March 15,               ACTION:   Notification of availability.
                                                (i) Before using any approved AMOC,                  2016.
                                             notify your appropriate principal inspector,               (x) Messier-Bugatti-Dowty Service Bulletin         SUMMARY:   The Food and Drug
                                             or lacking a principal inspector, the manager           631–32–233, dated March 15, 2016.                     Administration (FDA, the Agency, or
                                             of the local flight standards district office/             (xi) Messier-Bugatti-Dowty Service Bulletin
                                                                                                                                                           we) is announcing the availability of a
                                             certificate holding district office.                    631–32–234, dated March 15, 2016.
                                                                                                        (xii) Messier-Bugatti-Dowty Service
                                                                                                                                                           guidance for industry entitled
                                                (ii) AMOCs approved previously for AD
                                             2015–23–12 are approved as AMOCs for the                Bulletin 631–32–235, dated March 15, 2016.            ‘‘Mitigation Strategies to Protect Food
                                             corresponding provisions of this AD.                       (4) The following service information was          Against Intentional Adulteration: What
                                                (2) Contacting the Manufacturer: As of the           approved for IBR on December 29, 2015 (80             You Need To Know About the FDA
                                             effective date of this AD, for any requirement          FR 73096, November 24, 2015).                         Regulation: Small Entity Compliance
                                             in this AD to obtain corrective actions from               (i) Messier-Bugatti-Dowty Service Bulletin         Guide.’’ The small entity compliance
                                             a manufacturer, the action must be                      631–32–213, dated December 16, 2013.                  guide (SECG) is intended to help small
                                             accomplished using a method approved by                    (ii) Messier-Bugatti-Dowty Service Bulletin        entities comply with the final rule
                                             the Manager, International Section, Transport           631–32–214, dated January 13, 2014.                   entitled ‘‘Mitigation Strategies to Protect
                                             Standards Branch, FAA; or the EASA; or                     (iii) Messier-Bugatti-Dowty Service                Food Against Intentional Adulteration.’’
                                             ATR—GIE Avions de Transport Régional’s                 Bulletin 631–32–215, dated January 13, 2014.
                                             EASA DOA. If approved by the DOA, the                      (iv) Messier-Bugatti-Dowty Service Bulletin        DATES: The announcement of the
                                             approval must include the DOA-authorized                631–32–216, Revision 1, dated December 17,            guidance is published in the Federal
                                             signature.                                              2013. Pages 4, 5, and 8 of this service bulletin      Register on August 25, 2017.
                                             (s) Related Information                                 are the original issue and are dated October          ADDRESSES: You may submit either
                                                                                                     30, 2013.                                             electronic or written comments on
                                                (1) Refer to Mandatory Continuing                       (v) Messier-Bugatti-Dowty Service Bulletin
                                             Airworthiness Information (MCAI) EASA                                                                         Agency guidances at any time
                                                                                                     631–32–219, dated March 3, 2014.                      comments as follows:
                                             Airworthiness Directive 2016–0135, dated                   (vi) Messier-Bugatti-Dowty Service Bulletin
                                             July 8, 2016, for related information. This
                                                                                                     631–32–220, dated March 3, 2014.                      Electronic Submissions
                                             MCAI may be found in the AD docket on the
                                                                                                        (5) For service information identified in
                                             Internet at http://www.regulations.gov by
                                                                                                     this AD, contact ATR–GIE Avions de
                                                                                                                                                             Submit electronic comments in the
                                             searching for and locating Docket No. FAA–                                                                    following way:
                                                                                                     Transport Régional, 1, Allée Pierre Nadot,
                                             2017–0516.
                                                                                                     31712 Blagnac Cedex, France; telephone +33              • Federal eRulemaking Portal:
                                                (2) For more information about this AD,                                                                    https://www.regulations.gov. Follow the
                                             contact Shahram Daneshmandi, Aerospace                  (0) 5 62 21 62 21; fax +33 (0) 5 62 21 67 18;
                                                                                                     email continued.airworthiness@atr.fr;                 instructions for submitting comments.
                                             Engineer, International Section, Transport
                                             Standards Branch, FAA, 1601 Lind Avenue                 Internet http://www.aerochain.com.                    Comments submitted electronically,
                                             SW., Renton, WA 98057–3356; telephone                      (6) You may view this service information          including attachments, to https://
                                             425–227–1112; fax 425–227–1149.                         at the FAA, Transport Standards Branch,               www.regulations.gov will be posted to
                                                (3) Service information identified in this           1601 Lind Avenue SW., Renton, WA. For                 the docket unchanged. Because your
                                             AD that is not incorporated by reference is             information on the availability of this               comment will be made public, you are
                                             available at the addresses specified in                 material at the FAA, call 425–227–1221.               solely responsible for ensuring that your
pmangrum on DSK3GDR082PROD with RULES




                                             paragraphs (t)(5) and (t)(6) of this AD.                   (7) You may view this service information
                                                                                                                                                           comment does not include any
                                                                                                     that is incorporated by reference at the
                                             (t) Material Incorporated by Reference                  National Archives and Records
                                                                                                                                                           confidential information that you or a
                                                (1) The Director of the Federal Register             Administration (NARA). For information on             third party may not wish to be posted,
                                             approved the incorporation by reference                 the availability of this material at NARA, call       such as medical information, your or
                                             (IBR) of the service information listed in this         202–741–6030, or go to: http://                       anyone else’s Social Security number, or
                                             paragraph under 5 U.S.C. 552(a) and 1 CFR               www.archives.gov/federal-register/cfr/ibr-            confidential business information, such
                                             part 51.                                                locations.html.                                       as a manufacturing process. Please note


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Document Created: 2018-10-24 12:40:17
Document Modified: 2018-10-24 12:40:17
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective September 29, 2017.
ContactShahram Daneshmandi, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1112; fax 425-227-1149.
FR Citation82 FR 40479 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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