80_FR_72613 80 FR 72390 - Airworthiness Directives; Airbus Helicopters (Formerly Eurocopter France) Helicopters

80 FR 72390 - Airworthiness Directives; Airbus Helicopters (Formerly Eurocopter France) Helicopters

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 80, Issue 223 (November 19, 2015)

Page Range72390-72393
FR Document2015-29402

We propose to adopt a new airworthiness directive (AD) for Airbus Helicopters Model SA341G and SA342J helicopters. This proposed AD would require repetitive inspections of a certain part-numbered main rotor hub torsion bar (torsion bar). This proposed AD is prompted by several cases of corrosion in the metal strands of the torsion bar. The proposed actions are intended to detect corrosion and prevent failure of the torsion bar, loss of a main rotor blade, and subsequent loss of control of the helicopter.

Federal Register, Volume 80 Issue 223 (Thursday, November 19, 2015)
[Federal Register Volume 80, Number 223 (Thursday, November 19, 2015)]
[Proposed Rules]
[Pages 72390-72393]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-29402]


=======================================================================
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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-5914; Directorate Identifier 2014-SW-056-AD]
RIN 2120-AA64


Airworthiness Directives; Airbus Helicopters (Formerly Eurocopter 
France) Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
Airbus Helicopters Model SA341G and SA342J helicopters. This proposed 
AD would require repetitive inspections of a certain part-numbered main 
rotor hub torsion bar (torsion bar). This proposed AD is prompted by 
several cases of corrosion in the metal strands of the torsion bar. The 
proposed actions are intended to detect corrosion and prevent failure 
of the torsion bar, loss of a main rotor blade, and subsequent loss of 
control of the helicopter.

DATES: We must receive comments on this proposed AD by January 19, 
2016.

ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Docket: Go to http://www.regulations.gov. Follow the online instructions for sending your 
comments electronically.
     Fax: 202-493-2251.
     Mail: Send comments to the U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001.
     Hand Delivery: Deliver to the ``Mail'' address between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

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-2015-
5914; or in person at the Docket Operations Office between 9 a.m. and 5 
p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the European Aviation Safety Agency (EASA) 
AD, the economic evaluation, any comments received, and other 
information. The street address for the Docket Operations Office 
(telephone 800-647-5527) is in the ADDRESSES section. Comments will be 
available in the AD docket shortly after receipt. For service 
information identified in this proposed AD, contact Airbus Helicopters, 
2701 N. Forum Drive, Grand Prairie, TX 75052; telephone (972) 641-0000 
or (800) 232-0323; fax (972) 641-3775; or at http://www.airbushelicopters.com/techpub. You may review the referenced 
service information at the FAA, Office of the Regional Counsel, 
Southwest Region, 10101 Hillwood Pkwy, Room 6N-321, Fort Worth, TX 
76177.

FOR FURTHER INFORMATION CONTACT: Robert Grant, Aviation Safety 
Engineer, Safety Management Group, FAA, 10101 Hillwood Pkwy, Fort 
Worth, Texas 76177; telephone (817) 222-5110; email 
robert.grant@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to participate in this rulemaking by submitting 
written comments, data, or views. We also invite comments relating to 
the economic, environmental, energy, or federalism impacts that might 
result from adopting the proposals in this document. The most helpful 
comments reference a specific portion of the proposal, explain the 
reason for any recommended change, and include supporting data. To 
ensure the docket does not contain duplicate comments, commenters 
should send only one copy of written comments, or if comments are filed 
electronically, commenters should submit only one time.
    We will file in the docket all comments that we receive, as well as 
a report summarizing each substantive public contact with FAA personnel 
concerning this proposed rulemaking. Before acting on this proposal, we 
will consider all comments we receive on or before the closing date for 
comments. We will consider comments filed after the comment period has 
closed if it is possible to do so without incurring expense or delay. 
We may change this proposal in light of the comments we receive.

Discussion

    EASA, which is the Technical Agent for the Member States of the 
European Union, issued EASA AD No. 2014-0216, dated September 24, 2014, 
to correct an unsafe condition for Airbus Helicopters Model SA341G and 
SA342J helicopters. EASA advises that several cases of cracks were 
found on the polyurethane (PU) coating of part-numbered 704A33633274 
torsion bars installed on military Model SA341 helicopters. EASA states 
that these parts can also be

[[Page 72391]]

installed on civilian Model SA341 and SA342 helicopters. According to 
EASA, analysis of the cracked torsion bars showed small areas of 
superficial corrosion on the strands inside the bars can also develop 
during the manufacturing process. EASA states that cracking of the PU 
coating near these areas and the associated penetration of water can 
lead to further and deeper development of the corrosion. EASA advises 
that this condition, if not detected and corrected, allows water to 
penetrate into the torsion bar causing corrosion and failure of the 
metal strands inside the bar. Failure of the metal strands could lead 
to torsion bar failure, resulting in an in-flight loss of a main rotor 
blade and consequent loss of control of the helicopter.

FAA's Determination

    These helicopters have been approved by the aviation authority of 
France and are approved for operation in the United States. Pursuant to 
our bilateral agreement with France, EASA, its technical 
representative, has notified us of the unsafe condition described in 
its AD. We are proposing this AD because we evaluated all known 
relevant information and determined that an unsafe condition is likely 
to exist or develop on other products of the same type design.

Related Service Information Under 1 CFR Part 51

    We reviewed Airbus Helicopters Gazelle work card 65.12.607, dated 
August 2008. This service information describes inspecting the torsion 
bars for a crack in the PU coating and for corrosion and thickness of 
the bushings.
    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 of this 
NPRM.

Other Related Service Information

    Airbus Helicopters has issued Alert Service Bulletin No. SA341/
SA342-05.40, Revision 0, dated April 28, 2014 (ASB), for Model SA341G 
and SA342J helicopters certificated by the FAA, and military Model 
SA341B, C, D, E, F, and H and SA342K, L, L1, M, M1, and Ma helicopters. 
The ASB specifies repetitively inspecting the torsion bars in 
accordance with certain work cards, including work card 65.12.07. These 
inspections are part of Airbus Helicopters' current maintenance 
program, and the ASB revises the compliance time interval for the 
inspections.

Proposed AD Requirements

    This proposed AD would require removing and performing repetitive 
inspections of each torsion bar for a crack in the PU coating, the 
dimension of the angle between the bushings, corrosion on the inside 
diameter of each bushing, the thickness of each bushing, the size of 
the inside diameter of each bushing, and missing varnish on the two 
faces of each bushing. This proposed AD would require replacing the 
torsion bar before further flight if there is a crack in the PU coating 
of a torsion bar that matches or exceeds the damage criteria, if the 
angle of the torsion bar is 7 degrees or more, if any corrosion on a 
bushing cannot be removed by rubbing it with an abrasive pad, if the 
thickness of a bushing is less than 37.520 mm (1.477 in), or if the 
diameter of a bushing is larger than 21,040 mm (.828 in). If varnish is 
missing from more than 15 percent of the surface area from a face of a 
bushing, this proposed AD would require removing all varnish, finishing 
with an abrasive pad, and applying a coat of paint to the face of the 
bushing.

Differences Between This Proposed AD and the EASA AD

    This proposed AD would require you to replace a torsion bar instead 
of returning it to the manufacturer for examination.

Interim Action

    We consider this proposed AD to be an interim action. If final 
action is later identified, we might consider further rulemaking.

Costs of Compliance

    We estimate that this proposed AD would affect 33 helicopters of 
U.S. Registry.
    We estimate that operators may incur the following costs in order 
to comply with this AD. We estimate $85 per work hour for labor. We 
estimate 8 work hours to inspect each helicopter at an estimated cost 
of $680 per helicopter and $22,440 for the fleet per inspection cycle. 
Replacing a torsion bar would cost $7,020 for required parts; no 
additional labor would be necessary.

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.

Regulatory Findings

    We determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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, I certify this proposed regulation:
    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 to the extent that 
it justifies making a regulatory distinction; 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.
    We prepared an economic evaluation of the estimated costs to comply 
with this proposed AD and placed it in the AD docket.

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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 adding the following new airworthiness 
directive (AD):

Airbus Helicopters (formerly Eurocopter France): Docket No. FAA-
2015-5914; Directorate Identifier 2014-SW-056-AD.

[[Page 72392]]

(a) Applicability

    This AD applies to Model SA341G and SA342J helicopters with a 
main rotor head torsion bar (torsion bar) part number 704A33633274 
installed, certificated in any category.

(b) Unsafe Condition

    This AD defines the unsafe condition as a crack in the coating 
of the torsion bar resulting in corrosion. This condition could 
result in failure of a torsion bar, loss of a main rotor blade, and 
subsequent loss of control of the helicopter.

(c) Comments Due Date

    We must receive comments by January 19, 2016.

(d) Compliance

    You are responsible for performing each action required by this 
AD within the specified compliance time unless it has already been 
accomplished prior to that time.

(e) Required Actions

    (1) For each torsion bar with less than 5 years since the first 
date of installation on any helicopter, within the compliance time 
shown in Table 1 to paragraph (e)(1) of this AD:
    (i) Remove the torsion bar and, using a magnifying glass with a 
maximum magnification level of 10X, visually inspect for a crack in 
the polyurethane (PU) coating of the torsion bar as depicted in 
Figure 1 of Airbus Helicopters Gazelle work card 65.12.607, dated 
August 2008 (work card). Consider two cracks that are less than 5 mm 
(.196 in) apart as a single crack. If there is a crack in the PU 
coating that is more than 5 mm (.196 in), replace the torsion bar 
before further flight. Do not rework the PU coating of the torsion 
bar in any way.
    (ii) Inspect the angle, dimension alpha, as depicted in View on 
Arrow F of Figure 1 of the work card. If the angle is 7 or more 
degrees, replace the torsion bar before further flight.
    (iii) Inspect each bushing for corrosion on the inside diameter. 
If any corrosion cannot be removed by rubbing it with an abrasive 
pad, replace the torsion bar before further flight.
    (iv) Using an outside micrometer, measure the thickness, 
dimension a, of each bushing as depicted in Detail AA of Figure 1 of 
the work card. If the thickness is less than 37.520 mm (1.477 in), 
replace the torsion bar before further flight.
    (v) Using an inside micrometer, measure the inside diameter, 
dimension b, of each bushing as depicted in Detail AA of Figure 1 of 
the work card. If the diameter is larger than 21.040 mm (.828 in), 
replace the torsion bar before further flight.
    (vi) Inspect the two faces of each bushing for missing varnish. 
If varnish is missing from more than 15% of the surface area on a 
face of a bushing, before further flight, remove all varnish using 
400-grit abrasive paper. Finish with an abrasive pad and apply a 
coat of P05 paint to the face of the bushing.

                       Table 1 to Paragraph (e)(1)
------------------------------------------------------------------------
    Time accumulated on torsion bar              Compliance time
------------------------------------------------------------------------
(i) Less than 320 hours time-in-service  Before accumulating 420 hours
 (TIS) since new and has never been       TIS since new or within 24
 inspected in accordance with Airbus      months since the date of first
 Helicopters 341G-342J Airworthiness      installation on any
 Limitations, Revision 18, dated June     helicopter, whichever occurs
 2014 (limitations inspection).           first.
(ii) 320 or more hours TIS since new     Within 100 hours TIS, or before
 and has never had a limitations          accumulating 600 hours TIS
 inspection.                              since new, or within 24 months
                                          since the date of first
                                          installation on any
                                          helicopter, whichever occurs
                                          first.
(iii) Less than 320 hours TIS since the  Before accumulating 420 hours
 last limitations inspection.             TIS since the last limitations
                                          inspection or within 24 months
                                          since the last limitations
                                          inspection, whichever occurs
                                          first.
(iv) 320 or more hours TIS since the     Within 100 hours TIS, or before
 last limitations inspection.             accumulating 600 hours TIS
                                          since the last limitations
                                          inspection, or within 24
                                          months since the last
                                          limitations inspection,
                                          whichever occurs first.
------------------------------------------------------------------------

    (2) For each torsion bar with 5 or more years since the first 
date of installation on any helicopter, within the compliance time 
shown in Table 2 to paragraph (e)(2) of this AD, do the inspections 
required by paragraphs (e)(1)(i) through (vi) of this AD.

                       Table 2 to Paragraph (e)(2)
------------------------------------------------------------------------
    Time accumulated on torsion bar              Compliance time
------------------------------------------------------------------------
(i) Less than 320 hours TIS since new,   Before accumulating 420 hours
 and less than 6 months since the date    TIS since new or within 12
 of first installation on any             months since the date of first
 helicopter, and has never had a          installation on any
 limitations inspection.                  helicopter, whichever occurs
                                          first.
(ii) 320 or more hours TIS since new or  Within 100 hours TIS, or within
 more than 6 months since the date of     6 months, or before
 first installation on any helicopter,    accumulating 600 hours TIS
 and has never had a limitations          since new, or within 24 months
 inspection.                              since the date of first
                                          installation on any
                                          helicopter, whichever occurs
                                          first.
(iii) Less than 320 hours TIS since      Before accumulating 420 hours
 last limitations inspection and less     TIS since last limitations
 than 6 months since the last             inspection or 12 months since
 limitations inspection.                  last limitations inspection,
                                          whichever occurs first.
(iv) 320 or more hours TIS since last    Within 100 hours TIS, or within
 limitations inspection or 6 or more      6 months, or before
 months since the last limitations        accumulating 600 hours TIS
 inspection.                              since the last limitations
                                          inspection, or within 24
                                          months since the last
                                          limitations inspection,
                                          whichever occurs first.
------------------------------------------------------------------------

    (3) Repeat the inspections required by paragraphs (e)(1)(i) 
through (vi) of this AD as follows:
    (i) For torsion bars with less than 6 years since the date of 
installation on any helicopter, at intervals not to exceed 420 hours 
TIS or 24 months, whichever occurs first.
    (ii) For torsion bars with 6 or more years since the date of 
installation on any helicopter, at intervals not to exceed 420 hours 
TIS or 12 months, whichever comes first.

(f) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Safety Management Group, FAA, may approve AMOCs 
for this AD. Send your proposal to: Robert Grant, Aviation Safety 
Engineer, Safety Management Group, FAA, 10101 Hillwood Pkwy, Fort 
Worth, TX 76177; telephone (817) 222-5110; email 9-ASW-FTW-AMOC-Requests@faa.gov.
    (2) For operations conducted under a 14 CFR part 119 operating 
certificate or under 14 CFR part 91, subpart K, we suggest that you 
notify your principal inspector, or lacking a principal inspector, 
the manager of the local flight standards district office or 
certificate holding district office before

[[Page 72393]]

operating any aircraft complying with this AD through an AMOC.

(g) Additional Information

    (1) Airbus Helicopters Alert Service Bulletin ASB No. SA341/
SA342-05.40, Revision 0, dated April 28, 2014, which is not 
incorporated by reference, contains additional information about the 
subject of this AD. For service information identified in this AD, 
contact Airbus Helicopters, 2701 N. Forum Drive, Grand Prairie, TX 
75052; telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-
3775; or at http://www.airbushelicopters.com/techpub. You may review 
the referenced service information at the FAA, Office of the 
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-
321, Fort Worth, TX 76177.
    (2) The subject of this AD is addressed in European Aviation 
Safety Agency (EASA) AD No. 2014-0216, dated September 24, 2014. You 
may view the EASA AD on the Internet at http://www.regulations.gov 
in the AD Docket.

(h) Subject

    Joint Aircraft Service Component (JASC) Code: 6700 Main Rotor.

    Issued in Fort Worth, Texas, on November 9, 2015.
Lance T. Gant,
Manager, Rotorcraft Directorate, Aircraft Certification Service.
[FR Doc. 2015-29402 Filed 11-18-15; 8:45 am]
BILLING CODE 4910-13-P



                                                 72390                      Federal Register / Vol. 80, No. 223 / Thursday, November 19, 2015 / Proposed Rules

                                                 standard rating of 95 °F dry bulb                                  DEPARTMENT OF TRANSPORTATION                         section. Comments will be available in
                                                 outdoor temperature) not less than the                                                                                  the AD docket shortly after receipt. For
                                                 following:                                                         Federal Aviation Administration                      service information identified in this
                                                                                                                                                                         proposed AD, contact Airbus
                                                                                                  Energy            14 CFR Part 39                                       Helicopters, 2701 N. Forum Drive,
                                                                                                 efficiency                                                              Grand Prairie, TX 75052; telephone
                                                              Product class                                         [Docket No. FAA–2015–5914; Directorate
                                                                                                    ratio                                                                (972) 641–0000 or (800) 232–0323; fax
                                                                                                   (EER)            Identifier 2014–SW–056–AD]
                                                                                                                                                                         (972) 641–3775; or at http://
                                                                                                                    RIN 2120–AA64                                        www.airbushelicopters.com/techpub.
                                                 (i) Split-system rated cooling
                                                     capacity less than 45,000                                                                                           You may review the referenced service
                                                                                                                    Airworthiness Directives; Airbus
                                                     Btu/hr .................................                12.2                                                        information at the FAA, Office of the
                                                                                                                    Helicopters (Formerly Eurocopter
                                                 (ii) Split-system rated cooling                                                                                         Regional Counsel, Southwest Region,
                                                                                                                    France) Helicopters
                                                     capacity equal to or great-                                                                                         10101 Hillwood Pkwy, Room 6N–321,
                                                     er than 45,000 Btu/hr ........                          11.7   AGENCY: Federal Aviation                             Fort Worth, TX 76177.
                                                 (iii) Single-package systems                                11.0   Administration (FAA), DOT.                           FOR FURTHER INFORMATION CONTACT:
                                                                                                                    ACTION: Notice of proposed rulemaking                Robert Grant, Aviation Safety Engineer,
                                                   Any outdoor unit model that has a                                (NPRM).                                              Safety Management Group, FAA, 10101
                                                 certified combination with a rating                                                                                     Hillwood Pkwy, Fort Worth, Texas
                                                 below 14 SEER or the applicable EER                                     We propose to adopt a new
                                                                                                                    SUMMARY:                                             76177; telephone (817) 222–5110; email
                                                 cannot be installed in this region. An                       airworthiness directive (AD) for Airbus                    robert.grant@faa.gov.
                                                 outdoor unit model certified below 14                        Helicopters Model SA341G and SA342J                        SUPPLEMENTARY INFORMATION:
                                                 SEER or the applicable EER by the                            helicopters. This proposed AD would
                                                 outdoor unit manufacturer cannot be                          require repetitive inspections of a                        Comments Invited
                                                 installed in this region even with an                        certain part-numbered main rotor hub                          We invite you to participate in this
                                                                                                              torsion bar (torsion bar). This proposed                   rulemaking by submitting written
                                                 independent coil manufacturer’s indoor
                                                                                                              AD is prompted by several cases of                         comments, data, or views. We also
                                                 unit that may have a certified rating at
                                                                                                              corrosion in the metal strands of the                      invite comments relating to the
                                                 or above 14 SEER and the applicable
                                                                                                              torsion bar. The proposed actions are                      economic, environmental, energy, or
                                                 EER.                                                         intended to detect corrosion and                           federalism impacts that might result
                                                   (5) Each basic model of single-package                     prevent failure of the torsion bar, loss of                from adopting the proposals in this
                                                 central air conditioners and central air                     a main rotor blade, and subsequent loss                    document. The most helpful comments
                                                 conditioning heat pumps and each                             of control of the helicopter.                              reference a specific portion of the
                                                 individual combination of split-system                       DATES: We must receive comments on                         proposal, explain the reason for any
                                                 central air conditioners and central air                     this proposed AD by January 19, 2016.                      recommended change, and include
                                                 conditioning heat pumps manufactured                         ADDRESSES: You may send comments by                        supporting data. To ensure the docket
                                                 on or after January 1, 2015, shall have                      any of the following methods:                              does not contain duplicate comments,
                                                 an average off mode electrical power                           • Federal eRulemaking Docket: Go to                      commenters should send only one copy
                                                 consumption not more than the                                http://www.regulations.gov. Follow the                     of written comments, or if comments are
                                                 following:                                                   online instructions for sending your                       filed electronically, commenters should
                                                                                                              comments electronically.                                   submit only one time.
                                                                                                  Average       • Fax: 202–493–2251.                                        We will file in the docket all
                                                                                                  off mode      • Mail: Send comments to the U.S.                        comments that we receive, as well as a
                                                                                                   power
                                                              Product class                                   Department of Transportation, Docket                       report summarizing each substantive
                                                                                                consumption
                                                                                                   PW,OFF     Operations, M–30, West Building                            public contact with FAA personnel
                                                                                                   (watts)    Ground Floor, Room W12–140, 1200                           concerning this proposed rulemaking.
                                                                                                              New Jersey Avenue SE., Washington,                         Before acting on this proposal, we will
                                                 (i) Split-system air condi-                                  DC 20590–0001.                                             consider all comments we receive on or
                                                     tioners ...............................               30
                                                                                                                • Hand Delivery: Deliver to the                          before the closing date for comments.
                                                 (ii) Split-system heat pumps                              33
                                                                                                              ‘‘Mail’’ address between 9 a.m. and 5                      We will consider comments filed after
                                                 (iii) Single-package air condi-
                                                                                                              p.m., Monday through Friday, except                        the comment period has closed if it is
                                                     tioners ...............................               30
                                                 (iv) Single-package heat
                                                                                                              Federal holidays.                                          possible to do so without incurring
                                                     pumps ...............................                    33                                                         expense or delay. We may change this
                                                                                                                    Examining the AD Docket
                                                 (v) Small-duct, high-velocity                                                                                           proposal in light of the comments we
                                                     systems .............................                    30      You may examine the AD docket on                   receive.
                                                 (vi) Space-constrained air                                         the Internet at http://
                                                                                                                    www.regulations.gov by searching for                 Discussion
                                                     conditioners .......................                     30
                                                 (vii) Space-constrained heat                                       and locating Docket No. FAA–2015–                      EASA, which is the Technical Agent
                                                     pumps ...............................                    33    5914; or in person at the Docket                     for the Member States of the European
                                                                                                                    Operations Office between 9 a.m. and 5               Union, issued EASA AD No. 2014–0216,
                                                 *        *        *         *        *                             p.m., Monday through Friday, except                  dated September 24, 2014, to correct an
rmajette on DSK2TPTVN1PROD with PROPOSALS




                                                 [FR Doc. 2015–29435 Filed 11–18–15; 8:45 am]                       Federal holidays. The AD docket                      unsafe condition for Airbus Helicopters
                                                 BILLING CODE 6450–01–P                                             contains this proposed AD, the                       Model SA341G and SA342J helicopters.
                                                                                                                    European Aviation Safety Agency                      EASA advises that several cases of
                                                                                                                    (EASA) AD, the economic evaluation,                  cracks were found on the polyurethane
                                                                                                                    any comments received, and other                     (PU) coating of part-numbered
                                                                                                                    information. The street address for the              704A33633274 torsion bars installed on
                                                                                                                    Docket Operations Office (telephone                  military Model SA341 helicopters.
                                                                                                                    800–647–5527) is in the ADDRESSES                    EASA states that these parts can also be


                                            VerDate Sep<11>2014        14:08 Nov 18, 2015       Jkt 238001    PO 00000   Frm 00033   Fmt 4702   Sfmt 4702   E:\FR\FM\19NOP1.SGM   19NOP1


                                                                     Federal Register / Vol. 80, No. 223 / Thursday, November 19, 2015 / Proposed Rules                                              72391

                                                 installed on civilian Model SA341 and                   Proposed AD Requirements                              Part A, Subpart III, Section 44701:
                                                 SA342 helicopters. According to EASA,                      This proposed AD would require                     General requirements.’’ Under that
                                                 analysis of the cracked torsion bars                    removing and performing repetitive                    section, Congress charges the FAA with
                                                 showed small areas of superficial                       inspections of each torsion bar for a                 promoting safe flight of civil aircraft in
                                                 corrosion on the strands inside the bars                crack in the PU coating, the dimension                air commerce by prescribing regulations
                                                 can also develop during the                             of the angle between the bushings,                    for practices, methods, and procedures
                                                 manufacturing process. EASA states that                 corrosion on the inside diameter of each              the Administrator finds necessary for
                                                 cracking of the PU coating near these                   bushing, the thickness of each bushing,               safety in air commerce. This regulation
                                                 areas and the associated penetration of                 the size of the inside diameter of each               is within the scope of that authority
                                                 water can lead to further and deeper                    bushing, and missing varnish on the two               because it addresses an unsafe condition
                                                 development of the corrosion. EASA                      faces of each bushing. This proposed                  that is likely to exist or develop on
                                                 advises that this condition, if not                     AD would require replacing the torsion                products identified in this rulemaking
                                                 detected and corrected, allows water to                 bar before further flight if there is a               action.
                                                 penetrate into the torsion bar causing                  crack in the PU coating of a torsion bar              Regulatory Findings
                                                 corrosion and failure of the metal                      that matches or exceeds the damage
                                                 strands inside the bar. Failure of the                                                                          We determined that this proposed AD
                                                                                                         criteria, if the angle of the torsion bar is
                                                 metal strands could lead to torsion bar                                                                       would not have federalism implications
                                                                                                         7 degrees or more, if any corrosion on
                                                 failure, resulting in an in-flight loss of                                                                    under Executive Order 13132. This
                                                                                                         a bushing cannot be removed by rubbing
                                                 a main rotor blade and consequent loss                                                                        proposed AD would not have a
                                                                                                         it with an abrasive pad, if the thickness
                                                 of control of the helicopter.                                                                                 substantial direct effect on the States, on
                                                                                                         of a bushing is less than 37.520 mm
                                                                                                                                                               the relationship between the national
                                                 FAA’s Determination                                     (1.477 in), or if the diameter of a
                                                                                                                                                               Government and the States, or on the
                                                                                                         bushing is larger than 21,040 mm (.828                distribution of power and
                                                   These helicopters have been approved                  in). If varnish is missing from more than
                                                 by the aviation authority of France and                                                                       responsibilities among the various
                                                                                                         15 percent of the surface area from a                 levels of government.
                                                 are approved for operation in the United                face of a bushing, this proposed AD                     For the reasons discussed, I certify
                                                 States. Pursuant to our bilateral                       would require removing all varnish,                   this proposed regulation:
                                                 agreement with France, EASA, its                        finishing with an abrasive pad, and                     1. Is not a ‘‘significant regulatory
                                                 technical representative, has notified us               applying a coat of paint to the face of               action’’ under Executive Order 12866;
                                                 of the unsafe condition described in its                the bushing.                                            2. Is not a ‘‘significant rule’’ under the
                                                 AD. We are proposing this AD because                                                                          DOT Regulatory Policies and Procedures
                                                 we evaluated all known relevant                         Differences Between This Proposed AD
                                                                                                         and the EASA AD                                       (44 FR 11034, February 26, 1979);
                                                 information and determined that an                                                                              3. Will not affect intrastate aviation in
                                                 unsafe condition is likely to exist or                    This proposed AD would require you                  Alaska to the extent that it justifies
                                                 develop on other products of the same                   to replace a torsion bar instead of                   making a regulatory distinction; and
                                                 type design.                                            returning it to the manufacturer for                    4. Will not have a significant
                                                                                                         examination.                                          economic impact, positive or negative,
                                                 Related Service Information Under 1
                                                 CFR Part 51                                             Interim Action                                        on a substantial number of small entities
                                                                                                                                                               under the criteria of the Regulatory
                                                   We reviewed Airbus Helicopters                          We consider this proposed AD to be                  Flexibility Act.
                                                 Gazelle work card 65.12.607, dated                      an interim action. If final action is later             We prepared an economic evaluation
                                                 August 2008. This service information                   identified, we might consider further                 of the estimated costs to comply with
                                                 describes inspecting the torsion bars for               rulemaking.                                           this proposed AD and placed it in the
                                                 a crack in the PU coating and for                       Costs of Compliance                                   AD docket.
                                                 corrosion and thickness of the bushings.
                                                                                                           We estimate that this proposed AD                   List of Subjects in 14 CFR Part 39
                                                   This service information is reasonably                would affect 33 helicopters of U.S.
                                                 available because the interested parties                                                                        Air transportation, Aircraft, Aviation
                                                                                                         Registry.                                             safety, Incorporation by reference,
                                                 have access to it through their normal                    We estimate that operators may incur
                                                 course of business or by the means                                                                            Safety.
                                                                                                         the following costs in order to comply
                                                 identified in the ADDRESSES section of                  with this AD. We estimate $85 per work                The Proposed Amendment
                                                 this NPRM.                                              hour for labor. We estimate 8 work                      Accordingly, under the authority
                                                 Other Related Service Information                       hours to inspect each helicopter at an                delegated to me by the Administrator,
                                                                                                         estimated cost of $680 per helicopter                 the FAA proposes to amend 14 CFR part
                                                   Airbus Helicopters has issued Alert                   and $22,440 for the fleet per inspection              39 as follows:
                                                 Service Bulletin No. SA341/SA342–                       cycle. Replacing a torsion bar would
                                                 05.40, Revision 0, dated April 28, 2014                 cost $7,020 for required parts; no                    PART 39—AIRWORTHINESS
                                                 (ASB), for Model SA341G and SA342J                      additional labor would be necessary.                  DIRECTIVES
                                                 helicopters certificated by the FAA, and
                                                 military Model SA341B, C, D, E, F, and                  Authority for This Rulemaking                         ■ 1. The authority citation for part 39
                                                 H and SA342K, L, L1, M, M1, and Ma                        Title 49 of the United States Code                  continues to read as follows:
                                                 helicopters. The ASB specifies                          specifies the FAA’s authority to issue                    Authority: 49 U.S.C. 106(g), 40113, 44701.
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                                                 repetitively inspecting the torsion bars                rules on aviation safety. Subtitle I,
                                                 in accordance with certain work cards,                  section 106, describes the authority of               § 39.13    [Amended]
                                                 including work card 65.12.07. These                     the FAA Administrator. ‘‘Subtitle VII:                ■ 2. The FAA amends § 39.13 by adding
                                                 inspections are part of Airbus                          Aviation Programs,’’ describes in more                the following new airworthiness
                                                 Helicopters’ current maintenance                        detail the scope of the Agency’s                      directive (AD):
                                                 program, and the ASB revises the                        authority.                                            Airbus Helicopters (formerly Eurocopter
                                                 compliance time interval for the                          We are issuing this rulemaking under                    France): Docket No. FAA–2015–5914;
                                                 inspections.                                            the authority described in ‘‘Subtitle VII,                Directorate Identifier 2014–SW–056–AD.



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                                                 72392               Federal Register / Vol. 80, No. 223 / Thursday, November 19, 2015 / Proposed Rules

                                                 (a) Applicability                                       (e) Required Actions                                     (iii) Inspect each bushing for corrosion on
                                                   This AD applies to Model SA341G and                      (1) For each torsion bar with less than 5          the inside diameter. If any corrosion cannot
                                                 SA342J helicopters with a main rotor head               years since the first date of installation on         be removed by rubbing it with an abrasive
                                                 torsion bar (torsion bar) part number                   any helicopter, within the compliance time            pad, replace the torsion bar before further
                                                 704A33633274 installed, certificated in any             shown in Table 1 to paragraph (e)(1) of this          flight.
                                                 category.                                               AD:                                                      (iv) Using an outside micrometer, measure
                                                                                                            (i) Remove the torsion bar and, using a            the thickness, dimension a, of each bushing
                                                 (b) Unsafe Condition                                    magnifying glass with a maximum                       as depicted in Detail AA of Figure 1 of the
                                                   This AD defines the unsafe condition as a             magnification level of 10X, visually inspect          work card. If the thickness is less than 37.520
                                                 crack in the coating of the torsion bar                 for a crack in the polyurethane (PU) coating          mm (1.477 in), replace the torsion bar before
                                                 resulting in corrosion. This condition could            of the torsion bar as depicted in Figure 1 of         further flight.
                                                 result in failure of a torsion bar, loss of a           Airbus Helicopters Gazelle work card                     (v) Using an inside micrometer, measure
                                                 main rotor blade, and subsequent loss of                65.12.607, dated August 2008 (work card).             the inside diameter, dimension b, of each
                                                 control of the helicopter.                              Consider two cracks that are less than 5 mm           bushing as depicted in Detail AA of Figure
                                                                                                         (.196 in) apart as a single crack. If there is a      1 of the work card. If the diameter is larger
                                                 (c) Comments Due Date                                   crack in the PU coating that is more than 5           than 21.040 mm (.828 in), replace the torsion
                                                   We must receive comments by January 19,               mm (.196 in), replace the torsion bar before          bar before further flight.
                                                 2016.                                                   further flight. Do not rework the PU coating             (vi) Inspect the two faces of each bushing
                                                                                                         of the torsion bar in any way.                        for missing varnish. If varnish is missing
                                                 (d) Compliance                                             (ii) Inspect the angle, dimension alpha, as        from more than 15% of the surface area on
                                                   You are responsible for performing each               depicted in View on Arrow F of Figure 1 of            a face of a bushing, before further flight,
                                                 action required by this AD within the                   the work card. If the angle is 7 or more              remove all varnish using 400-grit abrasive
                                                 specified compliance time unless it has                 degrees, replace the torsion bar before further       paper. Finish with an abrasive pad and apply
                                                 already been accomplished prior to that time.           flight.                                               a coat of P05 paint to the face of the bushing.

                                                                                                               TABLE 1 TO PARAGRAPH (e)(1)
                                                                      Time accumulated on torsion bar                                                             Compliance time

                                                 (i) Less than 320 hours time-in-service (TIS) since new and has never                Before accumulating 420 hours TIS since new or within 24 months
                                                     been inspected in accordance with Airbus Helicopters 341G–342J                     since the date of first installation on any helicopter, whichever occurs
                                                     Airworthiness Limitations, Revision 18, dated June 2014 (limitations               first.
                                                     inspection).
                                                 (ii) 320 or more hours TIS since new and has never had a limitations                 Within 100 hours TIS, or before accumulating 600 hours TIS since
                                                     inspection.                                                                        new, or within 24 months since the date of first installation on any
                                                                                                                                        helicopter, whichever occurs first.
                                                 (iii) Less than 320 hours TIS since the last limitations inspection ...........      Before accumulating 420 hours TIS since the last limitations inspection
                                                                                                                                        or within 24 months since the last limitations inspection, whichever
                                                                                                                                        occurs first.
                                                 (iv) 320 or more hours TIS since the last limitations inspection ..............      Within 100 hours TIS, or before accumulating 600 hours TIS since the
                                                                                                                                        last limitations inspection, or within 24 months since the last limita-
                                                                                                                                        tions inspection, whichever occurs first.



                                                   (2) For each torsion bar with 5 or more               any helicopter, within the compliance time            AD, do the inspections required by
                                                 years since the first date of installation on           shown in Table 2 to paragraph (e)(2) of this          paragraphs (e)(1)(i) through (vi) of this AD.

                                                                                                               TABLE 2 TO PARAGRAPH (e)(2)
                                                                      Time accumulated on torsion bar                                                             Compliance time

                                                 (i) Less than 320 hours TIS since new, and less than 6 months since                  Before accumulating 420 hours TIS since new or within 12 months
                                                     the date of first installation on any helicopter, and has never had a              since the date of first installation on any helicopter, whichever occurs
                                                     limitations inspection.                                                            first.
                                                 (ii) 320 or more hours TIS since new or more than 6 months since the                 Within 100 hours TIS, or within 6 months, or before accumulating 600
                                                     date of first installation on any helicopter, and has never had a limita-          hours TIS since new, or within 24 months since the date of first in-
                                                     tions inspection.                                                                  stallation on any helicopter, whichever occurs first.
                                                 (iii) Less than 320 hours TIS since last limitations inspection and less             Before accumulating 420 hours TIS since last limitations inspection or
                                                     than 6 months since the last limitations inspection.                               12 months since last limitations inspection, whichever occurs first.
                                                 (iv) 320 or more hours TIS since last limitations inspection or 6 or more            Within 100 hours TIS, or within 6 months, or before accumulating 600
                                                     months since the last limitations inspection.                                      hours TIS since the last limitations inspection, or within 24 months
                                                                                                                                        since the last limitations inspection, whichever occurs first.



                                                    (3) Repeat the inspections required by               helicopter, at intervals not to exceed 420            Group, FAA, 10101 Hillwood Pkwy, Fort
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                                                 paragraphs (e)(1)(i) through (vi) of this AD as         hours TIS or 12 months, whichever comes               Worth, TX 76177; telephone (817) 222–5110;
                                                 follows:                                                first.                                                email 9-ASW-FTW-AMOC-Requests@faa.gov.
                                                    (i) For torsion bars with less than 6 years                                                                  (2) For operations conducted under a 14
                                                 since the date of installation on any                   (f) Alternative Methods of Compliance                 CFR part 119 operating certificate or under
                                                 helicopter, at intervals not to exceed 420              (AMOCs)                                               14 CFR part 91, subpart K, we suggest that
                                                 hours TIS or 24 months, whichever occurs                  (1) The Manager, Safety Management                  you notify your principal inspector, or
                                                 first.                                                  Group, FAA, may approve AMOCs for this                lacking a principal inspector, the manager of
                                                    (ii) For torsion bars with 6 or more years           AD. Send your proposal to: Robert Grant,              the local flight standards district office or
                                                 since the date of installation on any                   Aviation Safety Engineer, Safety Management           certificate holding district office before



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                                                                     Federal Register / Vol. 80, No. 223 / Thursday, November 19, 2015 / Proposed Rules                                           72393

                                                 operating any aircraft complying with this              This proposed AD would also require                   FOR FURTHER INFORMATION CONTACT:
                                                 AD through an AMOC.                                     sealing the main cabin floor areas above              Susan L. Monroe, Aerospace Engineer,
                                                 (g) Additional Information                              the aft EE bay, installing drip shields               Cabin Safety and Environmental
                                                    (1) Airbus Helicopters Alert Service
                                                                                                         and foam blocks, and rerouting the wire               Systems Branch, ANM–150S, FAA,
                                                 Bulletin ASB No. SA341/SA342–05.40,                     bundles near the drip shields above the               Seattle Aircraft Certification Office
                                                 Revision 0, dated April 28, 2014, which is              equipment in the aft EE bay. We are                   (ACO), 1601 Lind Avenue SW., Renton,
                                                 not incorporated by reference, contains                 proposing this AD to prevent a water                  WA 98057–3356; phone: 425–917–6457;
                                                 additional information about the subject of             leak from an improperly installed                     fax: 425–917–6590; email:
                                                 this AD. For service information identified in          potable water system coupling, or main                susan.l.monroe@faa.gov.
                                                 this AD, contact Airbus Helicopters, 2701 N.            cabin water source, which could cause                 SUPPLEMENTARY INFORMATION:
                                                 Forum Drive, Grand Prairie, TX 75052;                   the equipment in the EE bays to become
                                                 telephone (972) 641–0000 or (800) 232–0323;             wet, resulting in an electrical short and             Comments Invited
                                                 fax (972) 641–3775; or at http://                       potential loss of system functions                      We invite you to send any written
                                                 www.airbushelicopters.com/techpub. You
                                                 may review the referenced service
                                                                                                         essential for safe flight.                            relevant data, views, or arguments about
                                                 information at the FAA, Office of the                   DATES: We must receive comments on                    this proposal. Send your comments to
                                                 Regional Counsel, Southwest Region, 10101               this proposed AD by January 4, 2016.                  an address listed under the ADDRESSES
                                                 Hillwood Pkwy., Room 6N–321, Fort Worth,                ADDRESSES: You may send comments,                     section. Include ‘‘Docket No. FAA–
                                                 TX 76177.                                               using the procedures found in 14 CFR                  2015–5808; Directorate Identifier 2015–
                                                    (2) The subject of this AD is addressed in           11.43 and 11.45, by any of the following              NM–111–AD’’ at the beginning of your
                                                 European Aviation Safety Agency (EASA) AD               methods:                                              comments. We specifically invite
                                                 No. 2014–0216, dated September 24, 2014.                   • Federal eRulemaking Portal: Go to                comments on the overall regulatory,
                                                 You may view the EASA AD on the Internet
                                                                                                         http://www.regulations.gov. Follow the                economic, environmental, and energy
                                                 at http://www.regulations.gov in the AD
                                                 Docket.                                                 instructions for submitting comments.                 aspects of this proposed AD. We will
                                                                                                            • Fax: 202–493–2251.                               consider all comments received by the
                                                 (h) Subject                                                • Mail: U.S. Department of                         closing date and may amend this
                                                   Joint Aircraft Service Component (JASC)               Transportation, Docket Operations, M–                 proposed AD because of those
                                                 Code: 6700 Main Rotor.                                  30, West Building Ground Floor, Room                  comments.
                                                    Issued in Fort Worth, Texas, on November             W12–140, 1200 New Jersey Avenue SE.,                    We will post all comments we
                                                 9, 2015.                                                Washington, DC 20590.                                 receive, without change, to http://
                                                 Lance T. Gant,
                                                                                                            • Hand Delivery: Deliver to Mail                   www.regulations.gov, including any
                                                                                                         address above between 9 a.m. and 5                    personal information you provide. We
                                                 Manager, Rotorcraft Directorate, Aircraft
                                                 Certification Service.
                                                                                                         p.m., Monday through Friday, except                   will also post a report summarizing each
                                                                                                         Federal holidays.                                     substantive verbal contact we receive
                                                 [FR Doc. 2015–29402 Filed 11–18–15; 8:45 am]
                                                                                                            For service information identified in              about this proposed AD.
                                                 BILLING CODE 4910–13–P                                  this proposed AD, contact Boeing
                                                                                                         Commercial Airplanes, Attention: Data                 Discussion
                                                                                                         & Services Management, P.O. Box 3707,                    We received reports of water leakage
                                                 DEPARTMENT OF TRANSPORTATION                            MC 2H–65, Seattle, WA 98124–2207;                     from the potable water system due to
                                                 Federal Aviation Administration                         telephone 206–544–5000, extension 1;                  improperly installed waterline
                                                                                                         fax 206–766–5680; Internet https://                   couplings, and water leaking into the EE
                                                 14 CFR Part 39                                          www.myboeingfleet.com. You may view                   bays from above the floor in the main
                                                                                                         this referenced service information at                cabin, resulting in water on the
                                                 [Docket No. FAA–2015–5808; Directorate                  the FAA, Transport Airplane                           equipment in the EE bays. Such leakage
                                                 Identifier 2015–NM–111–AD]                              Directorate, 1601 Lind Avenue SW.,                    could result in an electrical short and
                                                 RIN 2120–AA64
                                                                                                         Renton, WA. For information on the                    potential loss of system functions
                                                                                                         availability of this material at the FAA,             essential for safe flight.
                                                 Airworthiness Directives; The Boeing                    call 425–227–1221. It is also available
                                                                                                         on the Internet at http://                            Related Service Information Under 1
                                                 Company Airplanes
                                                                                                         www.regulations.gov by searching for                  CFR Part 51
                                                 AGENCY: Federal Aviation                                and locating Docket No. FAA–2015–                       We reviewed the following service
                                                 Administration (FAA), DOT.                              5808.                                                 information:
                                                 ACTION: Notice of proposed rulemaking                                                                           • Boeing Alert Service Bulletin B787–
                                                                                                         Examining the AD Docket
                                                 (NPRM).                                                                                                       81205–SB380009–00, Issue 001, dated
                                                                                                            You may examine the AD docket on                   March 26, 2015.
                                                 SUMMARY:   We propose to adopt a new                    the Internet at http://                                 • Boeing Alert Service Bulletin B787–
                                                 airworthiness directive (AD) for certain                www.regulations.gov by searching for                  81205–SB530029–00, Issue 001, dated
                                                 The Boeing Company Model 787–8                          and locating Docket No. FAA–2015–                     March 26, 2015.
                                                 airplanes. This proposed AD was                         5808; or in person at the Docket                        • Boeing Alert Service Bulletin B787–
                                                 prompted by reports of water leakage                    Management Facility between 9 a.m.                    81205–SB530031–00, Issue 001, dated
                                                 from the potable water system due to                    and 5 p.m., Monday through Friday,                    March 26, 2015.
                                                 improperly installed waterline                          except Federal holidays. The AD docket                  This service information describes
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                                                 couplings, and water leaking into the                   contains this proposed AD, the                        procedures for replacing the potable
                                                 electronics equipment (EE) bays from                    regulatory evaluation, any comments                   waterline couplings above the forward
                                                 above the floor in the main cabin,                      received, and other information. The                  and aft EE bays with new, improved
                                                 resulting in water on the equipment in                  street address for the Docket Office                  couplings; sealing the floors, seat tracks,
                                                 the EE bays. This proposed AD would                     (phone: 800–647–5527) is in the                       and lavatories above the aft EE bay;
                                                 require replacing the potable waterline                 ADDRESSES section. Comments will be                   installing drip shields and foam blocks;
                                                 couplings above the forward and aft EE                  available in the AD docket shortly after              and rerouting the wire bundles adjacent
                                                 bays with new, improved couplings.                      receipt.                                              to the drip shields above the aft EE bay.


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Document Created: 2015-12-14 13:57:23
Document Modified: 2015-12-14 13:57:23
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by January 19, 2016.
ContactRobert Grant, Aviation Safety Engineer, Safety Management Group, FAA, 10101 Hillwood Pkwy, Fort Worth, Texas 76177; telephone (817) 222-5110; email [email protected]
FR Citation80 FR 72390 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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