Proposed Rule2022-22851
Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes
Primary source
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Published
October 27, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for all Gulfstream Aerospace Corporation (Gulfstream) Model GV and GV- SP airplanes. This proposed 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 the existing instructions for continued airworthiness (ICA) or inspection program for the airplane to establish a life limit for the affected MLG trunnion pin. The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 87 Issue 207 (Thursday, October 27, 2022)</title>
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[Federal Register Volume 87, Number 207 (Thursday, October 27, 2022)]
[Proposed Rules]
[Pages 65018-65020]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-22851]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1305; Project Identifier AD-2022-00913-T]
RIN 2120-AA64
Airworthiness Directives; Gulfstream Aerospace Corporation
Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all Gulfstream Aerospace Corporation (Gulfstream) Model GV and GV-
SP airplanes. This proposed 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 the existing instructions for continued
airworthiness (ICA) or inspection program for the airplane to establish
a life limit for the affected MLG trunnion pin. The FAA is proposing
this AD to address the unsafe condition on these products.
DATES: The FAA must receive comments on this proposed AD by December
12, 2022.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://regulations.gov">regulations.gov</a>. Follow
the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room
[[Page 65019]]
W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
<bullet> Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-1305; 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 NPRM, any comments received, and other
information. The street address for Docket Operations is listed above.
FOR FURTHER INFORMATION CONTACT: Miral Patel, Aerospace Engineer,
Systems and Equipment Section, FAA, Atlanta ACO Branch, 1701 Columbia
Avenue, College Park, GA 30337; phone: 404-474-5590; email: <a href="/cdn-cgi/l/email-protection#7f46523e2c30523e2b333e3c30523e3b0c3f191e1e51181009"><span class="__cf_email__" data-cfemail="d3eafe92809cfe92879f92909cfe9297a093b5b2b2fdb4bca5">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2022-1305; Project Identifier
AD-2022-00913-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this proposal because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
<a href="http://regulations.gov">regulations.gov</a>, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this NPRM.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this NPRM contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this NPRM, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this NPRM. Submissions containing CBI should be sent to Miral
Patel, Aerospace Engineer, Systems and Equipment Section, FAA, Atlanta
ACO Branch, 1701 Columbia Avenue, College Park, GA 30337; phone: 404-
474-5590; email: <a href="/cdn-cgi/l/email-protection#5c65711d0f13711d08101d1f13711d182f1c3a3d3d723b332a"><span class="__cf_email__" data-cfemail="053c2844564a2844514944464a28444176456364642b626a73">[email protected]</span></a>. Any commentary that the FAA
receives that is not specifically designated as CBI will be placed in
the public docket for this rulemaking.
Background
The FAA has received a report indicating a life limit for replacing
MLG trunnion pin part number (P/N) 1159SCL566-17 had been omitted from
the ALS of the maintenance manual for Models 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 life limit could lead to
fracture and failure of the trunnion pin. This condition, if
unaddressed, could result in MLG failure and could lead to a runway
excursion.
FAA's Determination
The FAA is issuing this NPRM after determining that the unsafe
condition described previously is likely to exist or develop on other
products of the same type design.
Related Service Information
The FAA reviewed Gulfstream GV Aircraft Maintenance Manual,
Revision 55, dated March 15, 2022; Gulfstream G550 Aircraft Maintenance
Manual, Revision 36, dated March 15, 2022; and Gulfstream G500-5000
Aircraft Maintenance Manual, Revision 36, dated March 15, 2022. The
service information adds a life limit for MLG trunnion pin P/N
1159SCL566-17.
Proposed AD Requirements in This NPRM
This proposed AD would require revising the ALS of the existing ICA
or inspection program for the airplane to establish a life limit of
20,000 flight cycles for MLG trunnion pin P/N 1159SCL566-17.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 582 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:
Estimated Costs
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Cost on U.S.
Action Labor cost Parts cost Cost/airplane operators
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Revise ALS............................ 1 work-hr. x $85 = $85.. N/A $85 $49,470
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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
The FAA 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 above, I certify this proposed
regulation:
[[Page 65020]]
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
(3) Would 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 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:
Gulfstream Aerospace Corporation: Docket No. FAA-2022-1305; Project
Identifier AD-2022-00913-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by December 12, 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) Incorporation of ALS Revisions
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
(P/N) 1159SCL566-17.
Note 2 to paragraph (g): The life limit in paragraph (g) of
this AD is contained in table 5 in Section 05-10-10 of Gulfstream V
Aircraft Maintenance Manual, Revision 55, dated March 15, 2022;
table 4 in Section 05-10-10 of the Gulfstream G500-5000 Aircraft
Maintenance Manual, Revision 36, dated March 15, 2022; and table 4
in Section 05-10-10 of the Gulfstream G550 Aircraft Maintenance
Manual, Revision 36, dated March 15, 2022.
(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 responsible Flight Standards 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 responsible Flight Standards Office.
(i) Related Information
(1) For more information about this AD, contact Miral Patel,
Aerospace Engineer, Systems and Equipment Section, FAA, Atlanta ACO
Branch, 1701 Columbia Avenue, College Park, GA 30337; phone: 404-
474-5590; email: <a href="/cdn-cgi/l/email-protection#9ba2b6dac8d4b6dacfd7dad8d4b6dadfe8dbfdfafab5fcf4ed"><span class="__cf_email__" data-cfemail="172e3a5644583a56435b5654583a5653645771767639707861">[email protected]</span></a>.
(2) For Gulfstream service information identified in this AD
that is not incorporated by reference, contact Gulfstream Aerospace
Corporation, Technical Publications Dept., P.O. Box 2206, Savannah,
GA 31402-2206; phone: (800) 810-4853; email: <a href="/cdn-cgi/l/email-protection#02727760714265776e6471767067636f2c616d6f"><span class="__cf_email__" data-cfemail="e494918697a483918882979096818589ca878b89">[email protected]</span></a>;
website: <a href="http://gulfstream.com/en/customer-support/">gulfstream.com/en/customer-support/</a>. You may view this
service information at the FAA, Airworthiness Products Section,
Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For
information on the availability of this material at the FAA, call
206-231-3195. You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety Branch, 2200
South 216th St., Des Moines, WA. For information on the availability
of this material at the FAA, call 206-231-3195.
(j) Material Incorporated by Reference
None.
Issued on October 14, 2022.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2022-22851 Filed 10-26-22; 8:45 am]
BILLING CODE 4910-13-P
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