Rule2021-26786
Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
December 10, 2021
Effective
January 14, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Gulfstream Aerospace Corporation (Gulfstream) Model GV and GV-SP airplanes. This AD was prompted by the omission of a life limit in the airworthiness limitations section (ALS) of the maintenance manual for a certain main landing gear (MLG) trunnion pin. This AD requires revising the ALS of your existing instructions for continued airworthiness (ICA) or inspection program for the airplane to establish a life limit of 20,000 flight cycles for the affected MLG trunnion pin. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 86 Issue 235 (Friday, December 10, 2021)</title>
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[Federal Register Volume 86, Number 235 (Friday, December 10, 2021)]
[Rules and Regulations]
[Pages 70367-70368]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-26786]
[[Page 70367]]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0216; Project Identifier 2018-CE-061-AD; Amendment
39-21860; AD 2021-26-02]
RIN 2120-AA64
Airworthiness Directives; Gulfstream Aerospace Corporation
Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Gulfstream Aerospace Corporation (Gulfstream) Model GV and GV-SP
airplanes. This AD was prompted by the omission of a life limit in the
airworthiness limitations section (ALS) of the maintenance manual for a
certain main landing gear (MLG) trunnion pin. This AD requires revising
the ALS of your existing instructions for continued airworthiness (ICA)
or inspection program for the airplane to establish a life limit of
20,000 flight cycles for the affected MLG trunnion pin. The FAA is
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective January 14, 2022.
ADDRESSES: For service information identified in this final rule,
contact Gulfstream Aerospace Corporation, Technical Publications Dept.,
500 Gulfstream Road, Savannah, GA 31402-2206; phone: (800) 810-4853;
fax: (912) 965-3520; email: <a href="/cdn-cgi/l/email-protection#06767364754661736a6075727463676b2865696b"><span class="__cf_email__" data-cfemail="fa8a8f9889ba9d8f969c898e889f9b97d4999597">[email protected]</span></a>; website: <a href="https://www.gulfstream.com/en/customer-support/">https://www.gulfstream.com/en/customer-support/</a>. You may view this service
information at the FAA, Airworthiness Products Section, Operational
Safety Branch, 901 Locust, Kansas City, MO 64106. For information on
the availability of this material at the FAA, call (817) 222-5110.
Examining the AD Docket
You may examine the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2021-0216; or in person at
Docket Operations between 9 a.m. and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket contains this final rule, any
comments received, and other information. The address for Docket
Operations is U.S. Department of Transportation, Docket Operations, M-
30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue
SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Miral Patel, Aviation Safety Engineer,
Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park, GA 30337;
phone: (404) 474-5590; fax: (404) 474-5606; email: <a href="/cdn-cgi/l/email-protection#c7aaaeb5a6abe9b7a6b3a2ab87a1a6a6e9a0a8b1"><span class="__cf_email__" data-cfemail="cda0a4bfaca1e3bdacb9a8a18dabacace3aaa2bb">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all Gulfstream
Aerospace Corporation (Gulfstream) Model GV and GV-SP airplanes. The
NPRM published in the Federal Register on September 17, 2021 (86 FR
51842). The NPRM was prompted by notification from Gulfstream that a
life limit for replacing MLG trunnion pin part number (P/N) 1159SCL566-
15 had been omitted from the ALS of the maintenance manual for Model GV
and GV-SP airplanes. Gulfstream revised the ALS for the applicable
airplanes to establish a life limit of 20,000 flight cycles for the
affected MLG trunnion pin. A trunnion pin remaining in service beyond
its fatigue life could lead to fracture and failure of the trunnion
pin.
In the NPRM, the FAA proposed to require revising the ALS of your
ICA or inspection program for the airplane to establish a life limit of
20,000 flight cycles for the affected MLG trunnion pin. The FAA is
issuing this AD to prevent MLG failure, which could lead to a runway
excursion.
Discussion of Final Airworthiness Directive
Comments
The FAA received no comments on the NPRM or on the determination of
the costs.
Conclusion
The FAA reviewed the relevant data and determined that air safety
requires adopting this AD as proposed. Accordingly, the FAA is issuing
this AD to address the unsafe condition on these products. This AD is
adopted as proposed in the NPRM.
Related Service Information
The FAA reviewed Gulfstream GV Aircraft Maintenance Manual,
Revision 53, dated March 15, 2021; Gulfstream G550 Aircraft Maintenance
Manual, Revision 34, dated March 15, 2021; and Gulfstream G500-5000
Aircraft Maintenance Manual, Revision 34, dated March 15, 2021. For the
applicable marketing designation specified on each document, the
revised service information adds a life limit for MLG trunnion pin P/N
1159SCL566-15.
Costs of Compliance
The FAA estimates that this AD affects 516 airplanes of U.S.
registry.
The FAA estimates the following costs to comply with this AD:
Estimated Costs
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Cost per Cost on U.S.
Action Labor cost Parts cost airplane operators
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Revise the ALS.................... 1 work-hour x $85 per Not applicable....... $85 $43,860
hour = $85.
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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.
The FAA is 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
This AD will not have federalism implications under Executive Order
13132. This AD will not have a substantial direct effect on the States,
on the relationship between the national government and the States, or
on the distribution of power and responsibilities among the various
levels of government.
For the reasons discussed above, I certify that this AD:
[[Page 70368]]
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Will not affect intrastate aviation in Alaska, and
(3) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
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 adding the following new airworthiness
directive:
2021-26-02 Gulfstream Aerospace Corporation: Amendment 39-21860;
Docket No. FAA-2021-0216; Project Identifier 2018-CE-061-AD.
(a) Effective Date
This airworthiness directive (AD) is effective January 14, 2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Gulfstream Aerospace Corporation Model GV and
GV-SP airplanes, all serial numbers, certificated in any category.
Note 1 to paragraph (c): Model GV-SP airplanes are also referred
to by the marketing designations G500, G550, and G500-5000.
(d) Subject
Joint Aircraft System Component (JASC) Code 3200, Landing Gear
System.
(e) Unsafe Condition
This AD was prompted by the omission of a life limit in the
airworthiness limitations section (ALS) for a certain main landing
gear (MLG) trunnion pin. The FAA is issuing this AD to prevent a MLG
trunnion pin from remaining in service beyond its fatigue life. This
unsafe condition, if not addressed, could result in MLG failure and
could lead to a runway excursion.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Revise the ALS
Within 12 months after the effective date of this AD, revise the
existing ALS of the instructions for continued airworthiness or
aircraft inspection program for your airplane by establishing a life
limit of 20,000 flight cycles for each MLG trunnion pin part number
1159SCL566-15.
Note 2 to paragraph (g): Table 5 in Section 05-10-10 of the
following aircraft maintenance manuals contains the life limit in
paragraph (g) of this AD: Gulfstream GV Aircraft Maintenance Manual,
Revision 53, dated March 15, 2021; Gulfstream G550 Aircraft
Maintenance Manual, Revision 34, dated March 15, 2021; or Gulfstream
G500-5000 Aircraft Maintenance Manual, Revision 34, dated March 15,
2021.
(h) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Atlanta ACO Branch, FAA, has the authority to
approve AMOCs for this AD, if requested using the procedures found
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request
to your principal inspector or local Flight Standards District
Office, as appropriate. If sending information directly to the
manager of the certification office, send it to the attention of the
person identified in paragraph (i)(1) of this AD.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(i) Related Information
(1) For more information about this AD, contact Miral Patel,
Aviation Safety Engineer, Atlanta ACO Branch, FAA, 1701 Columbia
Avenue, College Park, GA 30337; phone: (404) 474-5590; fax: (404)
474-5606; email: <a href="/cdn-cgi/l/email-protection#97fafee5f6fbb9e7f6e3f2fbd7f1f6f6b9f0f8e1"><span class="__cf_email__" data-cfemail="3a5753485b56144a5b4e5f567a5c5b5b145d554c">[email protected]</span></a>.
(2) For service information identified in this AD, contact
Gulfstream Aerospace Corporation, Technical Publications Dept., 500
Gulfstream Road, Savannah, GA 31402-2206; phone: (800) 810-4853;
fax: (912) 965-3520; email: <a href="/cdn-cgi/l/email-protection#9bebeef9e8dbfceef7fde8efe9fefaf6b5f8f4f6"><span class="__cf_email__" data-cfemail="8cfcf9eeffccebf9e0eafff8fee9ede1a2efe3e1">[email protected]</span></a>; website: <a href="https://www.gulfstream.com/en/customer-support/">https://www.gulfstream.com/en/customer-support/</a>. You may view this
referenced service information at the FAA, Airworthiness Products
Section, Operational Safety Branch, 901 Locust, Kansas City, MO
64106. For information on the availability of this material at the
FAA, call (817) 222-5110.
(j) Material Incorporated by Reference
None.
Issued on December 6, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-26786 Filed 12-9-21; 8:45 am]
BILLING CODE 4910-13-P
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