Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes, 51842-51844 [2021-20033]

Download as PDF 51842 Federal Register / Vol. 86, No. 178 / Friday, September 17, 2021 / Proposed Rules repair to be approved as required by this paragraph, the approval letter must specifically refer to this AD. (2) For the purposes of this AD, any maneuver resulting in weight on the MLG for any duration of time after initial takeoff counts as a landing. If the number of landings for the MLG is unknown, multiply the number of airframe hours by a factor of 3.6 and round up to the nearest whole landing. (h) Alternative Methods of Compliance (AMOCs) (1) The Manager, General Aviation & Rotorcraft Section, International Validation 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 Related Information or email: 9AVS-AIR-730-AMOC@faa.gov. (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 Gregory Johnson, Aviation Safety Engineer, FAA, General Aviation & Rotorcraft Section, International Validation Branch, 901 Locust, Room 301, Kansas City, MO 64106; phone: (720)-626–5462; fax: (816) 329–4090; email: gregory.johnson@faa.gov. (2) Refer to European Union Aviation Safety Agency (EASA) AD 2019–0274, dated November 6, 2019, for more information. You may examine the EASA AD in the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0795. (3) For service information identified in this AD, contact Daher Aircraft Inc., Pompano Beach Airpark, 601 NE 10th Street, Pompano Beach, FL 33060; phone: (954) 893–1400; website: www.tbm.aero. 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 (816) 329–4148. Issued on September 8, 2021. Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021–19962 Filed 9–16–21; 8:45 am] BILLING CODE 4910–13–P VerDate Sep<11>2014 15:47 Sep 16, 2021 Jkt 253001 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2021–0216; Project Identifier 2018–CE–061–AD] RIN 2120–AA64 Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to adopt a new airworthiness directive (AD) for all Gulfstream Aerospace Corporation (Gulfstream) Models 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 proposed AD would require 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 proposing this AD to address the unsafe condition on these products. DATES: The FAA must receive comments on this proposed AD by November 1, 2021. SUMMARY: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. • Fax: (202) 493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact Gulfstream Aerospace Corporation, Technical Publications Dept., 500 Gulfstream Road, Savannah, GA 31402–2206; phone: (800) 810–4853; fax: (912) 965– 3520; email: pubs@gulfstream.com; website: https://www.gulfstream.com/ en/customer-support/. You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information ADDRESSES: PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 on the availability of this material at the FAA, call (816) 329–4148. Examining the AD Docket You may examine the AD docket at https://www.regulations.gov 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 NPRM, any comments received, and other information. The street address for Docket Operations is listed above. 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: miral.patel@faa.gov. 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–2021–0216; Project Identifier 2018–CE–061–AD’’ 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 https:// www.regulations.gov, 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 E:\FR\FM\17SEP1.SGM 17SEP1 Federal Register / Vol. 86, No. 178 / Friday, September 17, 2021 / Proposed Rules 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. pin. A trunnion pin remaining in service beyond its fatigue life 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. placed in the public docket of this NPRM. Submissions containing CBI should be sent to Miral Patel, Aviation Safety Engineer, Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park, GA 30337. Any commentary that the FAA receives which is not specifically designated as CBI will be placed in the public docket for this rulemaking. Background Gulfstream notified the FAA 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 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 51843 Proposed AD Requirements in This NPRM 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. 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 1159SCL566–15. 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, Costs of Compliance The FAA estimates that this AD, if adopted as proposed, would affect 516 airplanes of U.S. registry. The FAA estimates the following costs to comply with this proposed AD: ESTIMATED COSTS Cost per product Action Labor cost Parts cost Revise the ALS ........................................... 1 work-hour × $85 per hour = $85 ............. Not applicable ....... 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. VerDate Sep<11>2014 15:47 Sep 16, 2021 (b) Affected ADs List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Joint Aircraft System Component (JASC) Code 3200, Landing Gear System. 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 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. Jkt 253001 $43,860 (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. 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: $85 Cost on U.S. operators § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive: ■ Gulfstream Aerospace Corporation: Docket No. FAA–2021–0216; Project Identifier 2018–CE–061–AD. (a) Comments Due Date The FAA must receive comments on this airworthiness directive (AD) by November 1, 2021. PO 00000 Frm 00009 Fmt 4702 Sfmt 4702 None. (c) Applicability This AD applies to Gulfstream Aerospace Corporation Models GV and GV–SP airplanes, all serial numbers, certificated in any category. (d) Subject (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 1 to paragraph (g) of this AD: 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, E:\FR\FM\17SEP1.SGM 17SEP1 51844 Federal Register / Vol. 86, No. 178 / Friday, September 17, 2021 / Proposed Rules 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: miral.patel@faa.gov. (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: pubs@gulfstream.com; website: https://www.gulfstream.com/en/customersupport/. 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 (816) 329–4148. Issued on September 13, 2021. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021–20033 Filed 9–16–21; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 [Docket No. FAA–2017–0461; Airspace Docket No. 17–AEA–5] RIN 2120–AA66 Proposed Amendment of VOR Federal Airways V–16, V–31, V–93, V–157, V– 213, and V–229 in the Vicinity of Patuxent River, MD Federal Aviation Administration (FAA) DOT. ACTION: Notice of proposed rulemaking (NPRM); withdrawal. AGENCY: VerDate Sep<11>2014 15:47 Sep 16, 2021 Jkt 253001 The FAA is withdrawing the NPRM published in the Federal Register on July 12, 2017, proposing to amend VHF Omnidirectional Range (VOR) Federal airways V–16, V–31, V– 93, V–157, V–213, and V–229 near Patuxent River, MD, due to the planned decommissioning of the Patuxent VOR/ Tactical Air Navigation (VORTAC) (PXT), Patuxent River, MD, in support of the FAA’s VOR Minimum Operational Network (MON) program. Subsequent to the NPRM, the PXT VORTAC decommissioning has been delayed until a to-be-determined date. The FAA decided that additional planning is necessary to ensure a more efficient implementation and integration with other ongoing VOR MON program activities, and determined that withdrawal of the proposed rule is warranted. List of Subjects in 14 CFR Part 71 Airspace, Incorporation by reference, Navigation (air). Effective September 17, 2021, the proposed rule published July 12, 2017 (82 FR 32149), is withdrawn. DEPARTMENT OF ENERGY SUMMARY: DATES: Paul Gallant, Rules and Regulations Group, Office of Policy, Federal Aviation Administration, 800 Independence Avenue SW, Washington, DC 20591; telephone: (202) 267–8783. The Withdrawal Accordingly, pursuant to the authority delegated to me, the NPRM published in the Federal Register on July 12, 2017 (82 FR 32149), FR Doc. 2017–14524, is hereby withdrawn. ■ Authority: 49 U.S.C. 106(f), 106(g), 40103, 40113, 40120; E.O. 10854; 24 FR 9565, 3 CFR, 1959–1963 Comp., p. 389. Issued in Washington, DC, on September 13, 2021. George Gonzalez, Acting Manager, Rules and Regulations Group. [FR Doc. 2021–20010 Filed 9–16–21; 8:45 am] BILLING CODE 4910–13–P Federal Energy Regulatory Commission FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: History The FAA published a notice of proposed rulemaking in the Federal Register for Docket No. FAA–2017–0461 (82 FR 32149; July 12, 2017), amending VOR Federal airways V–16, V–31, V–93, V–157, V–213, and V–229 due to the planned decommissioning of the Patuxent VORTAC which provides navigation guidance for portions of the affected airways. Interested parties were invited to participate in this rulemaking effort by submitting written comments on the proposal. One comment was received. The commenter recommended that for VOR NAVAIDs that are to be decommissioned, and for those airways that are correspondingly removed, the FAA should create an Area Navigation (RNAV) waypoint at the previous NAVAID location, and convert all fixes and intersections along that route to RNAV waypoints. FAA’s Conclusions The FAA has reviewed the Patuxent VORTAC decommissioning project and determined that additional planning meetings are warranted to ensure a more efficient implementation and integration with other ongoing program activities; therefore, the NPRM is withdrawn. PO 00000 Frm 00010 Fmt 4702 Sfmt 4702 18 CFR Part 154 [Docket No. RM21–18–000] Petition for Rulemaking: American Gas Association, American Public Gas Association, American Forest & Paper Association, Industrial Energy Consumers of America, Process Gas Consumers Group, Natural Gas Supply Association Federal Energy Regulatory Commission, DOE. ACTION: Petition for rulemaking. AGENCY: Take notice that, on June 24, 2021, American Gas Association, American Public Gas Association, American Forest & Paper Association, Industrial Energy Consumers of America, Process Gas Consumers Group, and Natural Gas Supply Association (collectively, Petitioners), pursuant to Rule 207(a)(4) of the Federal Energy Regulatory Commission’s (Commission) Rules of Practice and Procedure, filed a petition requesting that the Commission revise its regulations and/or filing procedures for natural gas pipelines regarding the filing of information in native file format. Specifically, Petitioners request that the Commission institute a rulemaking to revise its regulations for electronic filings of tariffs and related materials, or alternatively, issue an order revising and updating the FERC Implementation Guide for Electronic Tariff Filings (2016), to require the submission of all supporting statements, schedules, and workpapers in native format (e.g., Excel) SUMMARY: E:\FR\FM\17SEP1.SGM 17SEP1

Agencies

[Federal Register Volume 86, Number 178 (Friday, September 17, 2021)]
[Proposed Rules]
[Pages 51842-51844]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-20033]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0216; Project Identifier 2018-CE-061-AD]
RIN 2120-AA64


Airworthiness Directives; Gulfstream Aerospace Corporation 
Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for all Gulfstream Aerospace Corporation (Gulfstream) Models 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 
proposed AD would require 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 proposing this AD to address 
the unsafe condition on these products.

DATES: The FAA must receive comments on this proposed AD by November 1, 
2021.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: (202) 493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Gulfstream 
Aerospace Corporation, Technical Publications Dept., 500 Gulfstream 
Road, Savannah, GA 31402-2206; phone: (800) 810-4853; fax: (912) 965-
3520; email: [email protected]; website: https://www.gulfstream.com/en/customer-support/. 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 (816) 329-4148.

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov 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 NPRM, any comments 
received, and other information. The street address for Docket 
Operations is listed above.

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: [email protected].

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-2021-0216; Project Identifier 
2018-CE-061-AD'' 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 
https://www.regulations.gov, 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

[[Page 51843]]

placed in the public docket of this NPRM. Submissions containing CBI 
should be sent to Miral Patel, Aviation Safety Engineer, Atlanta ACO 
Branch, FAA, 1701 Columbia Avenue, College Park, GA 30337. Any 
commentary that the FAA receives which is not specifically designated 
as CBI will be placed in the public docket for this rulemaking.

Background

    Gulfstream notified the FAA 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 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 fatigue life 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 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.

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 1159SCL566-15.

Costs of Compliance

    The FAA estimates that this AD, if adopted as proposed, would 
affect 516 airplanes of U.S. registry.
    The FAA estimates the following costs to comply with this proposed 
AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
             Action                   Labor cost              Parts cost              product        operators
----------------------------------------------------------------------------------------------------------------
Revise the ALS..................  1 work-hour x $85   Not applicable............             $85         $43,860
                                   per hour = $85.
----------------------------------------------------------------------------------------------------------------

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:
    (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-2021-0216; Project 
Identifier 2018-CE-061-AD.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive 
(AD) by November 1, 2021.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Gulfstream Aerospace Corporation Models GV 
and GV-SP airplanes, all serial numbers, certificated in any 
category.

(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 1 to paragraph (g) of this AD: 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,

[[Page 51844]]

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: [email protected].
    (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: [email protected]; website: https://www.gulfstream.com/en/customer-support/. 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 (816) 329-4148.

    Issued on September 13, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2021-20033 Filed 9-16-21; 8:45 am]
BILLING CODE 4910-13-P