Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes, 38949-38950 [2021-15533]

Download as PDF Federal Register / Vol. 86, No. 139 / Friday, July 23, 2021 / Proposed Rules accordance with the Accomplishment Instructions, Part II, steps 4. through 12., of BASB 429–19–50, Revision B. (i) Terminating Action Replacement of a bellcrank assembly with a new part (never installed on a helicopter or has accumulated zero hours TIS) is terminating action for the requirements of this AD for that helicopter only. Issued on July 15, 2021. Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021–15534 Filed 7–22–21; 8:45 am] BILLING CODE 4910–13–P (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, 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 International Validation Branch, send it to the attention of the person identified in paragraph (l)(1) of this AD. Information may be emailed to: 9-AVS-AIR730-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. khammond on DSKJM1Z7X2PROD with PROPOSALS (l) Related Information (1) For more information about this AD, contact Andrea Jimenez, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600 Stewart Ave., Suite 410, Westbury, NY 11590; telephone (516) 228–7330; email andrea.jimenez@faa.gov. (2) For service information identified in this AD, contact Bell Textron Canada Limited, 12,800 Rue de l’Avenir, Mirabel, Quebec J7J 1R4, Canada; telephone 1–450– 437–2862 or 1–800–363–8023; fax 1–450– 433–0272; email productsupport@ bellflight.com; or at https:// www.bellflight.com/support/contact-support. You may view this referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N–321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call (817) 222– 5110. (3) The subject of this AD is addressed in Transport Canada AD CF–2020–11, dated April 16, 2020. You may view the Transport Canada AD on the internet at https:// www.regulations.gov in Docket No. FAA– 2021–0575. VerDate Sep<11>2014 16:27 Jul 22, 2021 Jkt 253001 FOR FURTHER INFORMATION CONTACT: Jared Meyer, Aviation Safety Engineer, Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park, GA 30337; phone: (404) 474–5534; fax: (404) 474–5605; email: jared.meyer@faa.gov. SUPPLEMENTARY INFORMATION: DEPARTMENT OF TRANSPORTATION (j) Credit for Previous Actions This paragraph provides credit for actions required by paragraph (g) of this AD, if those actions were performed before the effective date of this AD using the service information identified in paragraph (j)(1) or (2) of this AD. (1) Bell Alert Service Bulletin 429–19–50, dated November 27, 2019. (2) Bell Alert Service Bulletin 429–19–50, Revision A, dated December 2, 2019. 38949 Background As of July 23, 2021, the proposed rule, which published in the Federal Register on July 28, 2020 (85 FR 45345), is withdrawn. ADDRESSES: The FAA issued an NPRM that proposed to amend 14 CFR part 39 by adding an AD that would apply to certain serial-numbered Gulfstream Model GVII–G500 airplanes. The NPRM published in the Federal Register on July 28, 2020 (85 FR 45345). The NPRM was prompted by a report of the affected airplanes exhibiting a disparity between the fuel quantities displayed on the overhead panel touch screens and the fuel quantities displayed on the touch screen controllers. An investigation revealed two known failure conditions that the Model GVII–G500 FQMS does not properly detect and report to the crew. These failure conditions are fuel quantity probe drift and an FQMS overcurrent condition, which could result in erroneous and misleading fuel quantity indications and could also result in erroneous and misleading fuel imbalance indications. These conditions could cause a false annunciation of a fuel imbalance, a failure to annunciate an actual fuel imbalance, and a condition where the actual fuel quantity is less than or greater than the indicated fuel quantity. The FQMS software logic does not properly detect or compensate for these failure conditions. This condition, if not corrected, could result in fuel starvation during flight, performance impacts of the airplane having more fuel than indicated, and a roll moment due to a fuel imbalance. The NPRM proposed to require incorporating operating limitations into the AFM until the fuel quantity signal conditioner FQMS software is updated to version 10003–42130–01–19.03. Examining the AD Docket Actions Since the NPRM Was Issued You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2020–0713; 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 AD action, any comments received, and other information. The street 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. After issuance of the NPRM, the FAA determined that all Gulfstream Model GVII–G500 airplanes are in compliance with the proposed software update, and the unsafe condition has been removed from the fleet. In addition, since Gulfstream controls the software, it is unlikely the unsafe condition will be reintroduced. Based on the above information, the FAA has determined that AD action is not warranted and the proposal should be withdrawn. Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2020–0713; Product Identifier 2019–CE–061–AD] RIN 2120–AA64 Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Proposed rule; withdrawal. AGENCY: The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to adopt a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation (Gulfstream) Model GVII–G500 airplanes. The NPRM was prompted by a report of a fuel quantity disparity between the overhead panel touch screens and the touch screen controllers. The NPRM proposed to require incorporating operating limitations into the airplane flight manual (AFM) until the fuel quantity management system (FQMS) software is updated. Since issuance of the NPRM, the FAA has determined that there is not an unsafe condition because all affected airplanes have updated software. Accordingly, the NPRM is withdrawn. SUMMARY: DATES: PO 00000 Frm 00009 Fmt 4702 Sfmt 4702 E:\FR\FM\23JYP1.SGM 23JYP1 38950 Federal Register / Vol. 86, No. 139 / Friday, July 23, 2021 / Proposed Rules Comments The FAA received comments from Gulfstream and an individual commenter. Requests Gulfstream requested that the FAA change the credit for previous actions. The individual commenter requested the FAA clarify the correct revision of the service information to reference. The FAA acknowledges these comments. However, because the NPRM is being withdrawn, the commenters’ requests are no longer necessary. Withdrawal of the NPRM constitutes only such action and does not preclude the FAA from further rulemaking on this issue, nor does it commit the FAA to any course of action in the future. Regulatory Findings Since this action only withdraws an NPRM, it is neither a proposed AD nor a final rule. This action, therefore, is not covered under Executive Order 12866 or the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Withdrawal Accordingly, the notice of proposed rulemaking, which published in the Federal Register on July 28, 2020 (85 FR 45345), is withdrawn. ■ Issued on July 15, 2021. Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2021–15533 Filed 7–22–21; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2021–0578; Project Identifier 2018–SW–084–AD] RIN 2120–AA64 khammond on DSKJM1Z7X2PROD with PROPOSALS Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: The FAA proposes to adopt a new airworthiness directive (AD) for certain Leonardo S.p.a Model AW169 helicopters. This proposed AD was SUMMARY: 16:27 Jul 22, 2021 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 EASA material that is proposed for IBR in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email ADs@easa.europa.eu; internet www.easa.europa.eu. You may find this IBR material on the EASA website at https://ad.easa.europa.eu. You may view the EASA material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N–321, Fort Worth, TX 76177. For information on the availability of the EASA material at the FAA, call (817) 222–5110. The EASA material is also available at https:// www.regulations.gov by searching for and locating Docket No. FAA–2021– 0578. ADDRESSES: Examining the AD Docket Airworthiness Directives; Leonardo S.p.a. Helicopters VerDate Sep<11>2014 prompted by reports of in-flight pilot collective stick oscillation. This proposed AD would require a one-time measurement of the friction of the pilot collective stick assembly to verify that it is within the allowable range and, depending on findings, making an adjustment to restore the acceptable level of friction, as specified in a European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD, which is proposed for incorporation by reference (IBR). 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 September 7, 2021. Jkt 253001 You may examine the AD docket at https://www.regulations.gov by searching for and locating Docket No. FAA–2021–0578; 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, the EASA AD, any comments received, and other information. The street address for Docket Operations is listed above. PO 00000 Frm 00010 Fmt 4702 Sfmt 4702 FOR FURTHER INFORMATION CONTACT: Darren Gassetto, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600 Stewart Ave., Suite 410, Westbury, NY 11590; telephone (516) 228–7323; email Darren.Gassetto@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–2021–0578; Project Identifier 2018–SW–084–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 placed in the public docket of this NPRM. Submissions containing CBI should be sent to Darren Gassetto, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600 Stewart Ave., Suite 410, Westbury, NY 11590; telephone (516) 228–7323; email Darren.Gassetto@faa.gov. Any commentary that the FAA receives that is not specifically designated as CBI will E:\FR\FM\23JYP1.SGM 23JYP1

Agencies

[Federal Register Volume 86, Number 139 (Friday, July 23, 2021)]
[Proposed Rules]
[Pages 38949-38950]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-15533]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-0713; Product Identifier 2019-CE-061-AD]
RIN 2120-AA64


Airworthiness Directives; Gulfstream Aerospace Corporation 
Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Proposed rule; withdrawal.

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

SUMMARY: The FAA is withdrawing a notice of proposed rulemaking (NPRM) 
that proposed to adopt a new airworthiness directive (AD) for certain 
Gulfstream Aerospace Corporation (Gulfstream) Model GVII-G500 
airplanes. The NPRM was prompted by a report of a fuel quantity 
disparity between the overhead panel touch screens and the touch screen 
controllers. The NPRM proposed to require incorporating operating 
limitations into the airplane flight manual (AFM) until the fuel 
quantity management system (FQMS) software is updated. Since issuance 
of the NPRM, the FAA has determined that there is not an unsafe 
condition because all affected airplanes have updated software. 
Accordingly, the NPRM is withdrawn.

DATES: As of July 23, 2021, the proposed rule, which published in the 
Federal Register on July 28, 2020 (85 FR 45345), is withdrawn.

ADDRESSES:

Examining the AD Docket

    You may examine the AD docket at https://www.regulations.gov by 
searching for and locating Docket No. FAA-2020-0713; 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 AD action, any 
comments received, and other information. The street 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: Jared Meyer, Aviation Safety Engineer, 
Atlanta ACO Branch, FAA, 1701 Columbia Avenue, College Park, GA 30337; 
phone: (404) 474-5534; fax: (404) 474-5605; email: [email protected].

SUPPLEMENTARY INFORMATION:

Background

    The FAA issued an NPRM that proposed to amend 14 CFR part 39 by 
adding an AD that would apply to certain serial-numbered Gulfstream 
Model GVII-G500 airplanes. The NPRM published in the Federal Register 
on July 28, 2020 (85 FR 45345). The NPRM was prompted by a report of 
the affected airplanes exhibiting a disparity between the fuel 
quantities displayed on the overhead panel touch screens and the fuel 
quantities displayed on the touch screen controllers. An investigation 
revealed two known failure conditions that the Model GVII-G500 FQMS 
does not properly detect and report to the crew. These failure 
conditions are fuel quantity probe drift and an FQMS over-current 
condition, which could result in erroneous and misleading fuel quantity 
indications and could also result in erroneous and misleading fuel 
imbalance indications. These conditions could cause a false 
annunciation of a fuel imbalance, a failure to annunciate an actual 
fuel imbalance, and a condition where the actual fuel quantity is less 
than or greater than the indicated fuel quantity. The FQMS software 
logic does not properly detect or compensate for these failure 
conditions. This condition, if not corrected, could result in fuel 
starvation during flight, performance impacts of the airplane having 
more fuel than indicated, and a roll moment due to a fuel imbalance.
    The NPRM proposed to require incorporating operating limitations 
into the AFM until the fuel quantity signal conditioner FQMS software 
is updated to version 10003-42130-01-19.03.

Actions Since the NPRM Was Issued

    After issuance of the NPRM, the FAA determined that all Gulfstream 
Model GVII-G500 airplanes are in compliance with the proposed software 
update, and the unsafe condition has been removed from the fleet. In 
addition, since Gulfstream controls the software, it is unlikely the 
unsafe condition will be re-introduced.
    Based on the above information, the FAA has determined that AD 
action is not warranted and the proposal should be withdrawn.

[[Page 38950]]

Comments

    The FAA received comments from Gulfstream and an individual 
commenter.

Requests

    Gulfstream requested that the FAA change the credit for previous 
actions. The individual commenter requested the FAA clarify the correct 
revision of the service information to reference.
    The FAA acknowledges these comments. However, because the NPRM is 
being withdrawn, the commenters' requests are no longer necessary.
    Withdrawal of the NPRM constitutes only such action and does not 
preclude the FAA from further rulemaking on this issue, nor does it 
commit the FAA to any course of action in the future.

Regulatory Findings

    Since this action only withdraws an NPRM, it is neither a proposed 
AD nor a final rule. This action, therefore, is not covered under 
Executive Order 12866 or the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

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

The Withdrawal

0
Accordingly, the notice of proposed rulemaking, which published in the 
Federal Register on July 28, 2020 (85 FR 45345), is withdrawn.

    Issued on July 15, 2021.
Ross Landes,
Deputy Director for Regulatory Operations, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2021-15533 Filed 7-22-21; 8:45 am]
BILLING CODE 4910-13-P
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