80_FR_14862 80 FR 14808 - Airworthiness Directives; British Aerospace Regional Aircraft Airplanes

80 FR 14808 - Airworthiness Directives; British Aerospace Regional Aircraft Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 80, Issue 54 (March 20, 2015)

Page Range14808-14810
FR Document2015-06053

We are superseding an airworthiness directive (AD) 2014-06-03 for British Aerospace Regional Aircraft Model Jetstream Series 3101 and Jetstream Model 3201 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as stress corrosion cracking of the main landing gear spigot housing. We are issuing this AD to require actions to address the unsafe condition on these products.

Federal Register, Volume 80 Issue 54 (Friday, March 20, 2015)
[Federal Register Volume 80, Number 54 (Friday, March 20, 2015)]
[Rules and Regulations]
[Pages 14808-14810]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-06053]



[[Page 14808]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2014-1093; Directorate Identifier 2014-CE-035-AD; 
Amendment 39-18119; AD 2015-06-01]
RIN 2120-AA64


Airworthiness Directives; British Aerospace Regional Aircraft 
Airplanes

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

ACTION: Final rule.

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

SUMMARY: We are superseding an airworthiness directive (AD) 2014-06-03 
for British Aerospace Regional Aircraft Model Jetstream Series 3101 and 
Jetstream Model 3201 airplanes. This AD results from mandatory 
continuing airworthiness information (MCAI) issued by an aviation 
authority of another country to identify and correct an unsafe 
condition on an aviation product. The MCAI describes the unsafe 
condition as stress corrosion cracking of the main landing gear spigot 
housing. We are issuing this AD to require actions to address the 
unsafe condition on these products.

DATES: This AD is effective April 24, 2015.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in the AD as of April 24, 
2015.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2014-
1093; or in person at the 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 service information identified in this AD, contact BAE Systems 
(Operations) Ltd, Customer Information Department, Prestwick 
International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; 
phone: +44 1292 675207, fax: +44 1292 675704; email: 
[email protected]; Internet: http://www.jetstreamcentral.com. You may view this referenced service 
information at the FAA, Small Airplane Directorate, 901 Locust, Kansas 
City, Missouri 64106. For information on the availability of this 
material at the FAA, call (816) 329-4148. It is also available on the 
Internet at http://www.regulations.gov by searching for locating Docket 
No. FAA-2014-1093.

FOR FURTHER INFORMATION CONTACT: Taylor Martin, Aerospace Engineer, 901 
Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-
4138; fax: (816) 329-4090; email: [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to add an AD that would apply to British Aerospace Regional 
Aircraft Model Jetstream Series 3101 and Jetstream Model 3201 
airplanes. That NPRM was published in the Federal Register on December 
31, 2014 (79 FR 78726), and proposed to supersede AD 2014-06-03, 
Amendment 39-17807 (79 FR 17395, March 28, 2014).
    The NPRM proposed to correct an unsafe condition for the specified 
products and was based on mandatory continuing airworthiness 
information (MCAI) originated by an aviation authority of another 
country. The MCAI states that:

    Several cases of stress corrosion cracking of DTD 5094 standard 
Main Landing Gear (MLG) cylinders have been reported on Jetstream 
Series 3200 and 3100 aeroplanes.
    Prompted by these findings, The United Kingdom (UK) Civil 
Aviation Authority (CAA) issued AD 003-01-86 to require visual and 
non-destructive testing (NDT) inspections of the MLG assembly 
cylinder attachment spigot housing in accordance with BAE Systems 
(Operations) Ltd SB 32-A-JA851226. In 2012 an additional occurrence 
of Jetstream 3100 MLG failure after landing was reported, the 
subsequent investigation revealed stress corrosion cracking of the 
yoke pintle housing as a root cause of the MLG failure. Consequently 
EASA issued EASA AD 2013-0208 to require inspection of the MLG in 
accordance with BAE Systems (Operations) Ltd SB 32-A-JA851226 
Revision 5 or later approved revisions to detect any crack, however, 
SB 32-A-JA851226 did not apply to aeroplanes equipped with MLG 
cylinders manufactured from L161 material, since that is not 
susceptible to stress corrosion, BAE Systems (Operations) Ltd issued 
SB 32-JM7862 to address degradation of the surface protection by 
placing a special washer over the forward face of the MLG spigot 
housing, which rotates with the spigot housing. EASA issued AD 2013-
0206 to require modification of the left (LH) and right hand (RH) 
MLG in accordance with this SB.
    In 2014 a further event was reported, where the LH MLG of a 
Jetstream 3100 aeroplane collapsed during landing, this resulted in 
the aeroplane departing from the runway. The accident is still under 
investigation by the UK Air Accident Investigation Branch. 
Preliminary results of the investigation determined that cracking, 
which caused the MLG collapse, was initiated from a corrosion pit at 
the top outer edge of the forward spigot housing and extended along 
the top of the spigot housing. The spigot housing material was DTD 
5094. The affected LH MLG had been modified in accordance with BAE 
Systems (Operations) Ltd SB 32-JM7862 Revision 1. Further 
investigation discovered that the instructions provided in BAE 
Systems (Operations) Ltd SB 32-JM7862 Revision 1 did not effectively 
prevent stress corrosion cracking because, under certain 
circumstances, it allows the rotation of the special washer and 
consequent damage of the end face of the spigot housing.
    This condition, if not corrected, could lead to structural 
failure of the MLG, possibly resulting in loss of control of the 
aeroplane during take-off or landing runs.
    To address this potential unsafe condition, BAE Systems 
(Operations) Ltd issued SB 32-JM7862 Revision 2 to clarify the 
orientation of the spigot bearing cap, later revised to SB 32-JM7862 
Revision 3 to ensure the spigot bearing cap is correctly positioned. 
Additionally, BAE Systems (Operations) Ltd issued SB 32-A-JA140940 
to provide inspection instructions to detect migration of the 
special washer and any potential corrosion resulting from that 
unwanted migration for MLG installations modified earlier in 
accordance with BAE Systems (Operations) Ltd SB 32-JM7862 up to 
Revision 2.
    For the reasons described above, this AD partially retains the 
requirements of EASA AD 2013-0206, which is superseded, and requires 
a one-time inspection of pre-SB 32-JM7862 Revision 3 MLG 
installations and, depending on findings, applicable corrective 
action(s).

The MCAI can be found in the AD docket on the Internet at: http://www.regulations.gov/#!documentDetail;D=FAA-2014-1093-0002.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM (79 FR 78726, December 31, 
2014) or on the determination of the cost to the public.

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting the 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 (79 FR 78726, December 31, 2014) for correcting the unsafe 
condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (79 FR 78726, December 31, 2014).

Related Service Information Under 1 CFR Part 51

    We reviewed British Aerospace Jetstream Series 3100 and 3200 
Service Bulletin No. 32-JM7862, Revision 3,

[[Page 14809]]

dated October 3, 2014; and British Aerospace Jetstream Series 3100 and 
3200 Service Bulletin No. 32-A-JA140940, Original Issue, dated October 
3, 2014. The service information describes procedures for modifying the 
LH and RH MLG at the forward spigot and inspecting for migration of the 
special washer, taking corrective action as necessary. This service 
information is reasonably available; see ADDRESSES for ways to access 
this service information.

Costs of Compliance

    We estimate that this AD will affect 44 products of U.S. registry. 
We also estimate that it will take about 2 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 $170 per product.
    Based on these figures, we estimate the cost of this AD to the U.S. 
operators to be $14,960, or $340 per product.
    We accept modification of the MLG, if done before the effective 
date of this AD, using earlier versions of the service information. 
However, the earlier versions of the service information require 
additional inspections with possible corrective actions.
    In addition, we estimate that any necessary follow-on actions that 
may be required if using an earlier version of the service information 
would take about 1 work-hour to inspect for special washer migration 
and corrosion damage and require parts costing $100 for replacement of 
the special washer and application of witness paint, if necessary, for 
a cost of $185 per product. We have no way of determining the number of 
products that may need these actions.

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 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 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.

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-2014-
1093; 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 the NPRM, the regulatory evaluation, any comments received, 
and other information. The street address for the Docket Office 
(telephone (800) 647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

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 Amendment 39-17807 (79 FR 
17395, March 28, 2014) and adding the following new AD:

2015-06-01 British Aerospace Regional Aircraft: Amendment 39-18119; 
Docket No. FAA-2014-1093; Directorate Identifier 2014-CE-035-AD.

(a) Effective Date

    This airworthiness directive (AD) becomes effective April 24, 
2015.

(b) Affected ADs

    This AD supersedes AD 2014-06-03, Amendment 39-17806 (79 FR 
17395; March 28, 2014).

(c) Applicability

    This AD applies to British Aerospace Regional Aircraft Jetstream 
Series 3101 and Jetstream Model 3201 airplanes, all serial numbers, 
certificated in any category.

(d) Subject

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

(e) Reason

    This AD was prompted by mandatory continuing airworthiness 
information (MCAI) originated by an aviation authority of another 
country to identify and correct an unsafe condition on an aviation 
product. The MCAI describes the unsafe condition as stress corrosion 
cracking of the main landing gear (MLG) spigot housing. We are 
issuing this AD to prevent corrosion cracking of the MLG spigot 
housing. This condition, if not corrected, could cause structural 
failure of the MLG resulting in loss of control of the airplane 
during take-off or landing.

(f) Actions and Compliance

    Unless already done, do the following actions in paragraphs 
(f)(1) through (f)(11) of this AD, including all subparagraphs, as 
applicable.
    (1) At the next scheduled MLG removal, modify the installation 
of the left hand (LH) and right hand (RH) MLG at the forward spigot 
following British Aerospace Jetstream Series 3100 and 3200 Service 
Bulletin No. 32-JM7862, Revision 3, dated October 3, 2014.

    Note to paragraph (f)(1) of this AD: The next scheduled MLG 
removal may be for non-destructive testing or overhaul, as 
applicable.


    (2) If done before April 24, 2015 (the effective date of this 
AD), we will accept modification of the LH or RG MLG following 
British Aerospace Jetstream Series 3100 & 3200 Service Bulletin SB 
32-JM7862, Revision 2, dated June 13, 2014; or British Aerospace 
Jetstream Series 3100 & 3200 Service Bulletin 32-JM7862, Revision 1, 
dated May 7, 2013, for compliance with paragraph (f)(1) of this AD.
    (3) For airplanes that, before April 24, 2015 (the effective 
date of this AD), have been modified following British Aerospace 
Jetstream Series 3100 & 3200 Service Bulletin 32-JM7862, Revision 2, 
dated June 13, 2014, visually inspect the LH and RH MLG to detect 
migration of a special washer following the instructions in Part 1 
of British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 
32-A-JA140940, Original Issue, dated October 3, 2014, at the

[[Page 14810]]

compliance time listed in paragraph (f)(3)(i) or (f)(3)(ii) of this 
AD, as applicable.
    (i) For MLG configuration equipped with DTD5094 cylinder: Within 
the next 200 flight cycles after April 24, 2015 (the effective date 
of this AD) or within the next 2 months after the effective date of 
this AD, whichever occurs first.
    (ii) For MLG configuration equipped with L161 cylinder: Within 
the next 600 flight cycles after April 24, 2015 (the effective date 
of this AD) or within the next 6 months after April 24, 2015 (the 
effective date of this AD), whichever occurs first.
    (4) If evidence of migration of the special washer was detected 
during the inspection required in paragraph (f)(3) of this AD, 
within the applicable compliance time specified in paragraph 
(f)(3)(i) or (f)(3)(ii) of this AD, do the corrective actions on the 
LH or RH MLG, as applicable, following Part 2 of British Aerospace 
Jetstream Series 3100 & 3200 Service Bulletin 32-A-JA140940, 
Original Issue, dated October 3, 2014.
    (5) If no evidence of migration of the special washer was 
detected during the inspection required in paragraph (f)(3) of this 
AD, before further flight, apply a witness paint over the special 
washer tab and onto the MLG spigot housing (LH and RH MLG) following 
Part 1 of British Aerospace Jetstream Series 3100 & 3200 Service 
Bulletin 32-A-JA140940, Original Issue, dated October 3, 2014.
    (6) For airplanes that, before April 24, 2015 (the effective 
date of this AD), have been modified following British Aerospace 
Jetstream Series 3100 & 3200 Service Bulletin 32-JM7862, Revision 1, 
dated May 7, 2013, do all of the actions on the MLG cylinder (LH 
and/or RH, as applicable) following the instructions in Part 2 of 
British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32-
A-JA140940, Original Issue, dated October 3, 2014, at the compliance 
time listed in paragraph (f)(6)(i) or (f)(6)(ii), as applicable.
    (i) For MLG configuration equipped with DTD5094 cylinder: Within 
the next 200 flight cycles after April 24, 2015 (the effective date 
of this AD) or within the next 2 months after April 24, 2015 (the 
effective date of this AD), whichever occurs first.
    (ii) For MLG configuration equipped with L161 cylinder: Within 
the next 600 flight cycles after April 24, 2015 (the effective date 
of this AD) or within the next 6 months after April 24, 2015 (the 
effective date of this AD), whichever occurs first.
    (7) If any wear, corrosion, or damage is detected during the 
inspection required in either paragraph (f)(3) or (f)(6), as 
applicable, of this AD, before further flight, do all of the 
corrective actions (including application of the a witness paint) 
following the instructions in Part 2 of British Aerospace Jetstream 
Series 3100 & 3200 Service Bulletin 32-A-JA140940, Original Issue, 
dated October 3, 2014.
    (8) Between 30 and 45 days after doing the action required in 
either paragraph (f)(3) or (f)(6) of this AD or between the next 20 
to 30 flight cycles after doing the action required in either 
paragraph (f)(3) or (f)(6) of this AD, whichever occurs first, 
inspect the witness paint applied as required in either paragraph 
(f)(5) or (f)(7) of this AD following the instructions in Part 3 of 
British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32-
A-JA140940, Original Issue, dated October 3, 2014.
    (9) If any damaged paint is detected during the inspection 
required in paragraph (f)(8) of this AD, before further flight, 
contact British Aerospace Regional Aircraft to obtain FAA-approved 
repair instructions approved specifically for this AD and 
incorporate those instructions. You may find the contact information 
for British Aerospace Regional Aircraft in paragraph (h) of this AD.
    (10) As of April 24, 2015 (the effective date of this AD), do 
not install a LH or RH MLG on any of the applicable airplanes unless 
it has passed all of the inspections required by this AD.
    (11) For all airplanes: The compliance times for paragraphs 
(f)(3)(i), (f)(3)(ii), (f)(6)(i), (f)(6)(ii), and (f)(8) of this AD 
are presented in flight cycles (landings). If the total flight 
cycles have not been kept, multiply the total number of airplane 
hours time-in-service (TIS) by 0.75 to calculate the cycles. You may 
use the following as an example for this AD:
    (i) 200 hours TIS x .75 = 150 cycles; or
    (ii) 600 hours TIS x .75 = 450 cycles.

(g) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Standards Office, FAA, has the authority to approve AMOCs for this 
AD, if requested using the procedures found in 14 CFR 39.19. Send 
information to ATTN: Taylor Martin, Aerospace Engineer, FAA, Small 
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 
64106; telephone: (816) 329-4138; fax: (816) 329-4090; email: 
[email protected]. Before using any approved AMOC on any 
airplane to which the AMOC applies, notify your appropriate 
principal inspector (PI) in the FAA Flight Standards District Office 
(FSDO), or lacking a PI, your local FSDO.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.

(h) Related Information

    Refer to MCAI found in the European Aviation Safety Agency 
(EASA), which is the Technical Agent for the Member States of the 
European Community, AD No. 2014-0239, dated November 3, 2014; and 
British Aerospace Jetstream Series 3100 & 3200 Service Bulletin SB 
32-JA851226, Revision 5, dated April 30, 2013; British Aerospace 
Jetstream and British Aerospace Jetstream Series 3100 & 3200 Service 
Bulletin 32-JM7862, Revision 1, dated May 7, 2013, for related 
information. The MCAI can be found in the AD docket on the Internet 
at http://www.regulations.gov/#!documentDetail;D=FAA-2014-1093-0002.

(i) 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 the AD specifies otherwise.
    (i) British Aerospace Jetstream Series 3100 and 3200 Service 
Bulletin No. 32-JM7862, Revision 3, dated October 3, 2014.
    (ii) British Aerospace Jetstream Series 3100 & 3200 Service 
Bulletin 32-A-JA140940, Original Issue, dated October 3, 2014.
    (3) For service information identified in this AD, contact BAE 
Systems (Operations) Ltd, Customer Information Department, Prestwick 
International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; 
phone: +44 1292 675207, fax: +44 1292 675704; email: 
[email protected]; Internet: http://www.jetstreamcentral.com.
    (4) You may view this service information the FAA, Small 
Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For 
information on the availability of this material at the FAA, call 
(816) 329-4148. In addition, you can access this service information 
on the Internet at http://www.regulations.gov by searching for and 
locating Docket No. FAA-2014-1093.
    (5) 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 Kansas City, Missouri, on March 10, 2015.
Pat Mullen,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-06053 Filed 3-19-15; 8:45 am]
 BILLING CODE 4910-13-P



                                                14808               Federal Register / Vol. 80, No. 54 / Friday, March 20, 2015 / Rules and Regulations

                                                DEPARTMENT OF TRANSPORTATION                            FOR FURTHER INFORMATION CONTACT:                      The spigot housing material was DTD 5094.
                                                                                                        Taylor Martin, Aerospace Engineer, 901                The affected LH MLG had been modified in
                                                Federal Aviation Administration                         Locust, Room 301, Kansas City,                        accordance with BAE Systems (Operations)
                                                                                                                                                              Ltd SB 32–JM7862 Revision 1. Further
                                                                                                        Missouri 64106; telephone: (816) 329–
                                                14 CFR Part 39                                                                                                investigation discovered that the instructions
                                                                                                        4138; fax: (816) 329–4090; email:                     provided in BAE Systems (Operations) Ltd
                                                [Docket No. FAA–2014–1093; Directorate                  taylor.martin@faa.gov.                                SB 32–JM7862 Revision 1 did not effectively
                                                Identifier 2014–CE–035–AD; Amendment                    SUPPLEMENTARY INFORMATION:                            prevent stress corrosion cracking because,
                                                39–18119; AD 2015–06–01]                                                                                      under certain circumstances, it allows the
                                                                                                        Discussion                                            rotation of the special washer and
                                                RIN 2120–AA64
                                                                                                           We issued a notice of proposed                     consequent damage of the end face of the
                                                                                                        rulemaking (NPRM) to amend 14 CFR                     spigot housing.
                                                Airworthiness Directives; British                                                                                This condition, if not corrected, could lead
                                                Aerospace Regional Aircraft Airplanes                   part 39 to add an AD that would apply
                                                                                                        to British Aerospace Regional Aircraft                to structural failure of the MLG, possibly
                                                AGENCY:  Federal Aviation                                                                                     resulting in loss of control of the aeroplane
                                                                                                        Model Jetstream Series 3101 and
                                                Administration (FAA), Department of                                                                           during take-off or landing runs.
                                                                                                        Jetstream Model 3201 airplanes. That                     To address this potential unsafe condition,
                                                Transportation (DOT).                                   NPRM was published in the Federal                     BAE Systems (Operations) Ltd issued SB 32–
                                                ACTION: Final rule.                                     Register on December 31, 2014 (79 FR                  JM7862 Revision 2 to clarify the orientation
                                                                                                        78726), and proposed to supersede AD                  of the spigot bearing cap, later revised to SB
                                                SUMMARY:   We are superseding an                        2014–06–03, Amendment 39–17807 (79                    32–JM7862 Revision 3 to ensure the spigot
                                                airworthiness directive (AD) 2014–06–                   FR 17395, March 28, 2014).                            bearing cap is correctly positioned.
                                                03 for British Aerospace Regional                          The NPRM proposed to correct an                    Additionally, BAE Systems (Operations) Ltd
                                                Aircraft Model Jetstream Series 3101                    unsafe condition for the specified                    issued SB 32–A–JA140940 to provide
                                                and Jetstream Model 3201 airplanes.                     products and was based on mandatory                   inspection instructions to detect migration of
                                                This AD results from mandatory                                                                                the special washer and any potential
                                                                                                        continuing airworthiness information                  corrosion resulting from that unwanted
                                                continuing airworthiness information                    (MCAI) originated by an aviation
                                                (MCAI) issued by an aviation authority                                                                        migration for MLG installations modified
                                                                                                        authority of another country. The MCAI                earlier in accordance with BAE Systems
                                                of another country to identify and                      states that:                                          (Operations) Ltd SB 32–JM7862 up to
                                                correct an unsafe condition on an
                                                                                                           Several cases of stress corrosion cracking of      Revision 2.
                                                aviation product. The MCAI describes                                                                             For the reasons described above, this AD
                                                the unsafe condition as stress corrosion                DTD 5094 standard Main Landing Gear
                                                                                                        (MLG) cylinders have been reported on                 partially retains the requirements of EASA
                                                cracking of the main landing gear spigot                Jetstream Series 3200 and 3100 aeroplanes.            AD 2013–0206, which is superseded, and
                                                housing. We are issuing this AD to                         Prompted by these findings, The United             requires a one-time inspection of pre-SB 32–
                                                require actions to address the unsafe                   Kingdom (UK) Civil Aviation Authority                 JM7862 Revision 3 MLG installations and,
                                                condition on these products.                            (CAA) issued AD 003–01–86 to require visual           depending on findings, applicable corrective
                                                DATES: This AD is effective April 24,                   and non-destructive testing (NDT)                     action(s).
                                                2015.                                                   inspections of the MLG assembly cylinder              The MCAI can be found in the AD
                                                   The Director of the Federal Register                 attachment spigot housing in accordance
                                                                                                                                                              docket on the Internet at: http://
                                                approved the incorporation by reference                 with BAE Systems (Operations) Ltd SB 32–
                                                                                                        A–JA851226. In 2012 an additional                     www.regulations.gov/
                                                of certain publications listed in the AD                occurrence of Jetstream 3100 MLG failure              #!documentDetail;D=FAA-2014-1093-
                                                as of April 24, 2015.                                   after landing was reported, the subsequent            0002.
                                                ADDRESSES: You may examine the AD                       investigation revealed stress corrosion
                                                docket on the Internet at http://                       cracking of the yoke pintle housing as a root
                                                                                                                                                              Comments
                                                www.regulations.gov by searching for                    cause of the MLG failure. Consequently                  We gave the public the opportunity to
                                                and locating Docket No. FAA–2014–                       EASA issued EASA AD 2013–0208 to require              participate in developing this AD. We
                                                1093; or in person at the Docket                        inspection of the MLG in accordance with              received no comments on the NPRM (79
                                                Management Facility, U.S. Department                    BAE Systems (Operations) Ltd SB 32–A–
                                                                                                                                                              FR 78726, December 31, 2014) or on the
                                                                                                        JA851226 Revision 5 or later approved
                                                of Transportation, Docket Operations,                   revisions to detect any crack, however, SB            determination of the cost to the public.
                                                M–30, West Building Ground Floor,                       32–A–JA851226 did not apply to aeroplanes             Conclusion
                                                Room W12–140, 1200 New Jersey                           equipped with MLG cylinders manufactured
                                                Avenue SE., Washington, DC 20590.                       from L161 material, since that is not                   We reviewed the relevant data and
                                                   For service information identified in                susceptible to stress corrosion, BAE Systems          determined that air safety and the
                                                this AD, contact BAE Systems                            (Operations) Ltd issued SB 32–JM7862 to               public interest require adopting the AD
                                                (Operations) Ltd, Customer Information                  address degradation of the surface protection         as proposed except for minor editorial
                                                Department, Prestwick International                     by placing a special washer over the forward          changes. We have determined that these
                                                Airport, Ayrshire, KA9 2RW, Scotland,                   face of the MLG spigot housing, which
                                                                                                                                                              minor changes:
                                                                                                        rotates with the spigot housing. EASA issued
                                                United Kingdom; phone: +44 1292                         AD 2013–0206 to require modification of the             • Are consistent with the intent that
                                                675207, fax: +44 1292 675704; email:                    left (LH) and right hand (RH) MLG in                  was proposed in the NPRM (79 FR
                                                RApublications@baesystems.com;                          accordance with this SB.                              78726, December 31, 2014) for
                                                Internet: http://                                          In 2014 a further event was reported,              correcting the unsafe condition; and
                                                www.jetstreamcentral.com. You may                       where the LH MLG of a Jetstream 3100                    • Do not add any additional burden
                                                view this referenced service information                aeroplane collapsed during landing, this              upon the public than was already
                                                at the FAA, Small Airplane Directorate,                 resulted in the aeroplane departing from the          proposed in the NPRM (79 FR 78726,
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                                                901 Locust, Kansas City, Missouri                       runway. The accident is still under                   December 31, 2014).
                                                64106. For information on the                           investigation by the UK Air Accident
                                                                                                        Investigation Branch. Preliminary results of          Related Service Information Under 1
                                                availability of this material at the FAA,               the investigation determined that cracking,
                                                call (816) 329–4148. It is also available                                                                     CFR Part 51
                                                                                                        which caused the MLG collapse, was
                                                on the Internet at http://                              initiated from a corrosion pit at the top outer          We reviewed British Aerospace
                                                www.regulations.gov by searching for                    edge of the forward spigot housing and                Jetstream Series 3100 and 3200 Service
                                                locating Docket No. FAA–2014–1093.                      extended along the top of the spigot housing.         Bulletin No. 32–JM7862, Revision 3,


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                                                                    Federal Register / Vol. 80, No. 54 / Friday, March 20, 2015 / Rules and Regulations                                              14809

                                                dated October 3, 2014; and British                      products identified in this rulemaking                2015–06–01 British Aerospace Regional
                                                Aerospace Jetstream Series 3100 and                     action.                                                   Aircraft: Amendment 39–18119; Docket
                                                3200 Service Bulletin No. 32–A–                                                                                   No. FAA–2014–1093; Directorate
                                                                                                        Regulatory Findings                                       Identifier 2014–CE–035–AD.
                                                JA140940, Original Issue, dated October
                                                3, 2014. The service information                          We determined that this AD will not                 (a) Effective Date
                                                describes procedures for modifying the                  have federalism implications under                       This airworthiness directive (AD) becomes
                                                LH and RH MLG at the forward spigot                     Executive Order 13132. This AD will                   effective April 24, 2015.
                                                and inspecting for migration of the                     not have a substantial direct effect on
                                                                                                                                                              (b) Affected ADs
                                                special washer, taking corrective action                the States, on the relationship between
                                                as necessary. This service information is               the national government and the States,                 This AD supersedes AD 2014–06–03,
                                                                                                        or on the distribution of power and                   Amendment 39–17806 (79 FR 17395; March
                                                reasonably available; see ADDRESSES for                                                                       28, 2014).
                                                ways to access this service information.                responsibilities among the various
                                                                                                        levels of government.                                 (c) Applicability
                                                Costs of Compliance                                       For the reasons discussed above, I                     This AD applies to British Aerospace
                                                   We estimate that this AD will affect                 certify this AD:                                      Regional Aircraft Jetstream Series 3101 and
                                                44 products of U.S. registry. We also                     (1) Is not a ‘‘significant regulatory               Jetstream Model 3201 airplanes, all serial
                                                estimate that it will take about 2 work-                action’’ under Executive Order 12866,                 numbers, certificated in any category.
                                                hours per product to comply with the                      (2) Is not a ‘‘significant rule’’ under             (d) Subject
                                                basic requirements of this AD. The                      the DOT Regulatory Policies and                         Air Transport Association of America
                                                average labor rate is $85 per work-hour.                Procedures (44 FR 11034, February 26,                 (ATA) Code 32: Landing Gear.
                                                Required parts will cost about $170 per                 1979),
                                                                                                          (3) Will not affect intrastate aviation             (e) Reason
                                                product.
                                                   Based on these figures, we estimate                  in Alaska, and                                           This AD was prompted by mandatory
                                                                                                          (4) Will not have a significant                     continuing airworthiness information (MCAI)
                                                the cost of this AD to the U.S. operators
                                                                                                        economic impact, positive or negative,                originated by an aviation authority of another
                                                to be $14,960, or $340 per product.                                                                           country to identify and correct an unsafe
                                                   We accept modification of the MLG,                   on a substantial number of small entities
                                                                                                                                                              condition on an aviation product. The MCAI
                                                if done before the effective date of this               under the criteria of the Regulatory
                                                                                                                                                              describes the unsafe condition as stress
                                                AD, using earlier versions of the service               Flexibility Act.                                      corrosion cracking of the main landing gear
                                                information. However, the earlier                       Examining the AD Docket                               (MLG) spigot housing. We are issuing this AD
                                                versions of the service information                                                                           to prevent corrosion cracking of the MLG
                                                                                                          You may examine the AD docket on                    spigot housing. This condition, if not
                                                require additional inspections with
                                                                                                        the Internet at http://                               corrected, could cause structural failure of
                                                possible corrective actions.
                                                                                                        www.regulations.gov by searching for                  the MLG resulting in loss of control of the
                                                   In addition, we estimate that any                    and locating Docket No. FAA–2014–                     airplane during take-off or landing.
                                                necessary follow-on actions that may be                 1093; or in person at the Docket
                                                required if using an earlier version of                                                                       (f) Actions and Compliance
                                                                                                        Management Facility between 9 a.m.
                                                the service information would take                                                                               Unless already done, do the following
                                                                                                        and 5 p.m., Monday through Friday,                    actions in paragraphs (f)(1) through (f)(11) of
                                                about 1 work-hour to inspect for special                except Federal holidays. The AD docket
                                                washer migration and corrosion damage                                                                         this AD, including all subparagraphs, as
                                                                                                        contains the NPRM, the regulatory                     applicable.
                                                and require parts costing $100 for                      evaluation, any comments received, and                   (1) At the next scheduled MLG removal,
                                                replacement of the special washer and                   other information. The street address for             modify the installation of the left hand (LH)
                                                application of witness paint, if                        the Docket Office (telephone (800) 647–               and right hand (RH) MLG at the forward
                                                necessary, for a cost of $185 per                       5527) is in the ADDRESSES section.                    spigot following British Aerospace Jetstream
                                                product. We have no way of                              Comments will be available in the AD                  Series 3100 and 3200 Service Bulletin No.
                                                determining the number of products                      docket shortly after receipt.                         32–JM7862, Revision 3, dated October 3,
                                                that may need these actions.                                                                                  2014.
                                                                                                        List of Subjects in 14 CFR Part 39                       Note to paragraph (f)(1) of this AD: The
                                                Authority for This Rulemaking                                                                                 next scheduled MLG removal may be for
                                                                                                          Air transportation, Aircraft, Aviation
                                                   Title 49 of the United States Code                                                                         non-destructive testing or overhaul, as
                                                                                                        safety, Incorporation by reference,                   applicable.
                                                specifies the FAA’s authority to issue                  Safety.
                                                rules on aviation safety. Subtitle I,                                                                            (2) If done before April 24, 2015 (the
                                                section 106, describes the authority of                 Adoption of the Amendment                             effective date of this AD), we will accept
                                                the FAA Administrator. ‘‘Subtitle VII:                    Accordingly, under the authority                    modification of the LH or RG MLG following
                                                Aviation Programs,’’ describes in more                                                                        British Aerospace Jetstream Series 3100 &
                                                                                                        delegated to me by the Administrator,
                                                detail the scope of the Agency’s                                                                              3200 Service Bulletin SB 32–JM7862,
                                                                                                        the FAA amends 14 CFR part 39 as                      Revision 2, dated June 13, 2014; or British
                                                authority.                                              follows:                                              Aerospace Jetstream Series 3100 & 3200
                                                   We are issuing this rulemaking under                                                                       Service Bulletin 32–JM7862, Revision 1,
                                                the authority described in ‘‘Subtitle VII,              PART 39—AIRWORTHINESS                                 dated May 7, 2013, for compliance with
                                                Part A, Subpart III, Section 44701:                     DIRECTIVES                                            paragraph (f)(1) of this AD.
                                                General requirements.’’ Under that                                                                               (3) For airplanes that, before April 24, 2015
                                                section, Congress charges the FAA with                  ■ 1. The authority citation for part 39               (the effective date of this AD), have been
                                                promoting safe flight of civil aircraft in              continues to read as follows:                         modified following British Aerospace
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                                                air commerce by prescribing regulations                     Authority: 49 U.S.C. 106(g), 40113, 44701.        Jetstream Series 3100 & 3200 Service Bulletin
                                                                                                                                                              32–JM7862, Revision 2, dated June 13, 2014,
                                                for practices, methods, and procedures
                                                                                                        § 39.13   [Amended]                                   visually inspect the LH and RH MLG to
                                                the Administrator finds necessary for                                                                         detect migration of a special washer
                                                safety in air commerce. This regulation                 ■ 2. The FAA amends § 39.13 by                        following the instructions in Part 1 of British
                                                is within the scope of that authority                   removing Amendment 39–17807 (79 FR                    Aerospace Jetstream Series 3100 & 3200
                                                because it addresses an unsafe condition                17395, March 28, 2014) and adding the                 Service Bulletin 32–A–JA140940, Original
                                                that is likely to exist or develop on                   following new AD:                                     Issue, dated October 3, 2014, at the



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                                                14810               Federal Register / Vol. 80, No. 54 / Friday, March 20, 2015 / Rules and Regulations

                                                compliance time listed in paragraph (f)(3)(i)           paragraph (f)(5) or (f)(7) of this AD following       (i) Material Incorporated by Reference
                                                or (f)(3)(ii) of this AD, as applicable.                the instructions in Part 3 of British Aerospace          (1) The Director of the Federal Register
                                                   (i) For MLG configuration equipped with              Jetstream Series 3100 & 3200 Service Bulletin         approved the incorporation by reference
                                                DTD5094 cylinder: Within the next 200 flight            32–A–JA140940, Original Issue, dated                  (IBR) of the service information listed in this
                                                cycles after April 24, 2015 (the effective date         October 3, 2014.                                      paragraph under 5 U.S.C. 552(a) and 1 CFR
                                                of this AD) or within the next 2 months after              (9) If any damaged paint is detected during        part 51.
                                                the effective date of this AD, whichever                the inspection required in paragraph (f)(8) of           (2) You must use this service information
                                                occurs first.                                           this AD, before further flight, contact British       as applicable to do the actions required by
                                                   (ii) For MLG configuration equipped with             Aerospace Regional Aircraft to obtain FAA-            this AD, unless the AD specifies otherwise.
                                                L161 cylinder: Within the next 600 flight               approved repair instructions approved                    (i) British Aerospace Jetstream Series 3100
                                                cycles after April 24, 2015 (the effective date         specifically for this AD and incorporate those        and 3200 Service Bulletin No. 32–JM7862,
                                                of this AD) or within the next 6 months after           instructions. You may find the contact                Revision 3, dated October 3, 2014.
                                                April 24, 2015 (the effective date of this AD),         information for British Aerospace Regional               (ii) British Aerospace Jetstream Series 3100
                                                whichever occurs first.                                 Aircraft in paragraph (h) of this AD.                 & 3200 Service Bulletin 32–A–JA140940,
                                                   (4) If evidence of migration of the special
                                                                                                           (10) As of April 24, 2015 (the effective date      Original Issue, dated October 3, 2014.
                                                washer was detected during the inspection
                                                                                                        of this AD), do not install a LH or RH MLG               (3) For service information identified in
                                                required in paragraph (f)(3) of this AD,
                                                                                                        on any of the applicable airplanes unless it          this AD, contact BAE Systems (Operations)
                                                within the applicable compliance time
                                                                                                        has passed all of the inspections required by         Ltd, Customer Information Department,
                                                specified in paragraph (f)(3)(i) or (f)(3)(ii) of
                                                                                                        this AD.                                              Prestwick International Airport, Ayrshire,
                                                this AD, do the corrective actions on the LH
                                                                                                           (11) For all airplanes: The compliance             KA9 2RW, Scotland, United Kingdom;
                                                or RH MLG, as applicable, following Part 2
                                                                                                        times for paragraphs (f)(3)(i), (f)(3)(ii),           phone: +44 1292 675207, fax: +44 1292
                                                of British Aerospace Jetstream Series 3100 &
                                                                                                        (f)(6)(i), (f)(6)(ii), and (f)(8) of this AD are      675704; email: RApublications@
                                                3200 Service Bulletin 32–A–JA140940,
                                                                                                        presented in flight cycles (landings). If the         baesystems.com; Internet: http://
                                                Original Issue, dated October 3, 2014.
                                                                                                        total flight cycles have not been kept,               www.jetstreamcentral.com.
                                                   (5) If no evidence of migration of the
                                                                                                        multiply the total number of airplane hours              (4) You may view this service information
                                                special washer was detected during the
                                                                                                        time-in-service (TIS) by 0.75 to calculate the        the FAA, Small Airplane Directorate, 901
                                                inspection required in paragraph (f)(3) of this
                                                                                                        cycles. You may use the following as an               Locust, Kansas City, Missouri 64106. For
                                                AD, before further flight, apply a witness
                                                                                                        example for this AD:                                  information on the availability of this
                                                paint over the special washer tab and onto
                                                the MLG spigot housing (LH and RH MLG)                     (i) 200 hours TIS × .75 = 150 cycles; or           material at the FAA, call (816) 329–4148. In
                                                following Part 1 of British Aerospace                      (ii) 600 hours TIS × .75 = 450 cycles.             addition, you can access this service
                                                                                                                                                              information on the Internet at http://
                                                Jetstream Series 3100 & 3200 Service Bulletin           (g) Other FAA AD Provisions                           www.regulations.gov by searching for and
                                                32–A–JA140940, Original Issue, dated
                                                                                                           The following provisions also apply to this        locating Docket No. FAA–2014–1093.
                                                October 3, 2014.
                                                                                                        AD:                                                      (5) You may view this service information
                                                   (6) For airplanes that, before April 24, 2015
                                                                                                           (1) Alternative Methods of Compliance              that is incorporated by reference at the
                                                (the effective date of this AD), have been
                                                                                                        (AMOCs): The Manager, Standards Office,               National Archives and Records
                                                modified following British Aerospace
                                                                                                        FAA, has the authority to approve AMOCs               Administration (NARA). For information on
                                                Jetstream Series 3100 & 3200 Service Bulletin
                                                                                                        for this AD, if requested using the procedures        the availability of this material at NARA, call
                                                32–JM7862, Revision 1, dated May 7, 2013,
                                                                                                        found in 14 CFR 39.19. Send information to            202–741–6030, or go to: http://
                                                do all of the actions on the MLG cylinder (LH
                                                                                                        ATTN: Taylor Martin, Aerospace Engineer,              www.archives.gov/federal-register/cfr/ibr-
                                                and/or RH, as applicable) following the
                                                                                                        FAA, Small Airplane Directorate, 901 Locust,          locations.html.
                                                instructions in Part 2 of British Aerospace
                                                Jetstream Series 3100 & 3200 Service Bulletin           Room 301, Kansas City, Missouri 64106;                  Issued in Kansas City, Missouri, on March
                                                32–A–JA140940, Original Issue, dated                    telephone: (816) 329–4138; fax: (816) 329–            10, 2015.
                                                October 3, 2014, at the compliance time                 4090; email: taylor.martin@faa.gov. Before            Pat Mullen,
                                                listed in paragraph (f)(6)(i) or (f)(6)(ii), as         using any approved AMOC on any airplane
                                                                                                        to which the AMOC applies, notify your                Acting Manager, Small Airplane Directorate,
                                                applicable.                                                                                                   Aircraft Certification Service.
                                                   (i) For MLG configuration equipped with              appropriate principal inspector (PI) in the
                                                DTD5094 cylinder: Within the next 200 flight            FAA Flight Standards District Office (FSDO),          [FR Doc. 2015–06053 Filed 3–19–15; 8:45 am]
                                                cycles after April 24, 2015 (the effective date         or lacking a PI, your local FSDO.                     BILLING CODE 4910–13–P
                                                of this AD) or within the next 2 months after              (2) Airworthy Product: For any requirement
                                                April 24, 2015 (the effective date of this AD),         in this AD to obtain corrective actions from
                                                whichever occurs first.                                 a manufacturer or other source, use these             DEPARTMENT OF TRANSPORTATION
                                                   (ii) For MLG configuration equipped with             actions if they are FAA-approved. Corrective
                                                L161 cylinder: Within the next 600 flight               actions are considered FAA-approved if they           Federal Aviation Administration
                                                cycles after April 24, 2015 (the effective date         are approved by the State of Design Authority
                                                of this AD) or within the next 6 months after           (or their delegated agent). You are required          14 CFR Part 39
                                                April 24, 2015 (the effective date of this AD),         to assure the product is airworthy before it
                                                whichever occurs first.                                 is returned to service.                               [Docket No. FAA–2014–1123; Directorate
                                                   (7) If any wear, corrosion, or damage is                                                                   Identifier 2014–CE–037–AD; Amendment
                                                                                                        (h) Related Information                               39–18120; AD 2015–06–02]
                                                detected during the inspection required in
                                                either paragraph (f)(3) or (f)(6), as applicable,          Refer to MCAI found in the European
                                                                                                        Aviation Safety Agency (EASA), which is the           RIN 2120–AA64
                                                of this AD, before further flight, do all of the
                                                corrective actions (including application of            Technical Agent for the Member States of the
                                                                                                        European Community, AD No. 2014–0239,                 Airworthiness Directives; GA 8 Airvan
                                                the a witness paint) following the
                                                instructions in Part 2 of British Aerospace             dated November 3, 2014; and British                   (Pty) Ltd Airplanes
                                                Jetstream Series 3100 & 3200 Service Bulletin           Aerospace Jetstream Series 3100 & 3200                AGENCY:  Federal Aviation
                                                32–A–JA140940, Original Issue, dated                    Service Bulletin SB 32–JA851226, Revision 5,
                                                                                                                                                              Administration (FAA), Department of
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                                                October 3, 2014.                                        dated April 30, 2013; British Aerospace
                                                   (8) Between 30 and 45 days after doing the           Jetstream and British Aerospace Jetstream             Transportation (DOT).
                                                action required in either paragraph (f)(3) or           Series 3100 & 3200 Service Bulletin 32–               ACTION: Final rule.
                                                (f)(6) of this AD or between the next 20 to             JM7862, Revision 1, dated May 7, 2013, for
                                                30 flight cycles after doing the action                 related information. The MCAI can be found            SUMMARY:   We are adopting a new
                                                required in either paragraph (f)(3) or (f)(6) of        in the AD docket on the Internet at http://           airworthiness directive (AD) for GA 8
                                                this AD, whichever occurs first, inspect the            www.regulations.gov/                                  Airvan (Pty) Ltd Model GA8–TC320
                                                witness paint applied as required in either             #!documentDetail;D=FAA-2014-1093-0002.                airplanes. This AD results from


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Document Created: 2015-12-18 11:34:54
Document Modified: 2015-12-18 11:34:54
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 April 24, 2015.
ContactTaylor Martin, Aerospace Engineer, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329- 4138; fax: (816) 329-4090; email: [email protected]
FR Citation80 FR 14808 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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