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Federal Register / Vol. 86, No. 92 / Friday, May 14, 2021 / Rules and Regulations 7 Heavylift Helicopters, Inc., Model C
130B airplanes, TCDS A35NM, Revision 1.
8 Hawkins & Powers Aviation, Inc., Model HPC130A airplanes, TCDS A30NM, Revision 1.
9 Coulson Aviation USA, Inc., Model EC130Q airplanes, TCDS T00019LA, Revision 2.
d Subject Air Transport Association ATA of America Code 57, Wings.
e Unsafe Condition This AD was prompted by a report of a crack found on the web attachment flange of the center wing upper forward corner fitting.
The FAA is issuing this AD to address loose fasteners in a certain wing joint at the front beam web, which can cause internal load redistribution, and consequent cracked center wing upper and lower corner fittings and failed fasteners in those fittings, resulting in reduced structural integrity of the airplane and loss of control of the airplane.
f Compliance Comply with this AD within the compliance times specified, unless already done.

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g Inspection, Torque Check, and Corrective Actions At the applicable compliance time specified in paragraph g1 or 2 of this AD, do an eddy current surface scan for cracks of the center wing upper and lower forward corner fittings and fasteners, and do a torque check of the left and right outer-wing-tocenter-wing front-beam-web-joint-spliceangle fasteners including checking for any loose, sheared, broken, or missing fasteners, in accordance with the Accomplishment Instructions of Lockheed Martin Aeronautics Company Alert Service Bulletin A3825799, Revision 1, dated February 17, 2021. If any cracking is found during the inspection, repair before further flight using a method approved in accordance with the procedures specified in paragraph j of this AD. If any loose fastener is found during the torque check, retorque the fastener before further flight, in accordance with the Accomplishment Instructions of Lockheed Martin Aeronautics Company Alert Service Bulletin A3825799, Revision 1, dated February 17, 2021. If any sheared, broken, or missing fastener is found during the torque check, replace the fastener before further flight.
1 For airplanes that have accumulated 2,500 or more flight hours as of the effective date of this AD: Within 90 days after the effective date of this AD.
2 For airplanes that have accumulated less than 2,500 flight hours as of the effective date of this AD: Within 270 days after the effective date of this AD.
h No Reporting Although Lockheed Martin Aeronautics Company Alert Service Bulletin A3825799, Revision 1, dated February 17, 2021, specifies to report inspection findings, this AD does not require any report.

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i Special Flight Permit Special flight permits, as described in 14
CFR 21.197 and 21.199, are not allowed.
j 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 Related Information.
2 Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
3 An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by a Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Designated Engineering Representative DER that has been authorized by the Manager, Atlanta ACO
Branch, FAA, to make those findings. To be approved, the repair, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD.
k Related Information For more information about this AD, contact Fred Caplan, Aerospace Engineer, Airframe Section, FAA, Atlanta ACO Branch, 1701 Columbia Avenue, College Park, GA
30337; phone: 4044745507; fax: 404474
5606; email: Frederick.N.Caplan@faa.gov.
l 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. 552a 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 Lockheed Martin Aeronautics Company Alert Service Bulletin A3825799, Revision 1, dated February 17, 2021.
ii Reserved 3 For service information identified in this AD, contact Lockheed Martin Corporation/Lockheed Martin Aeronautics Company, Customer Support Center, Dept.
3E1M, Zone 0591, 86 S Cobb Drive, Marietta, GA 30063; telephone 7704949131; email hercules.support@lmco.com; internet https
www.lockheedmartin.com.
4 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 2062313195.
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, email fedreg.legal@nara.gov, or go to: https
www.archives.gov/federal-register/cfr/ibrlocations.html.

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Issued on April 23, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202110262 Filed 51121; 4:15 pm BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210365; Project Identifier MCAI202100527T; Amendment 3921553; AD 20211020
RIN 2120AA64

Airworthiness Directives; ATRGIE
Avions de Transport Regional Airplanes Federal Aviation Administration FAA, DOT.
ACTION: Final rule; request for comments.
AGENCY:

The FAA is adopting a new airworthiness directive AD for certain ATRGIE Avions de Transport Regional Model ATR42500 and ATR72212A airplanes. This AD was prompted by reports of temporary loss of all display units and the integrated electronic standby instrument IESI.
This AD requires revising the existing aircraft flight manual AFM and applicable corresponding operational procedures to update a systems limitation, limiting dispatch with certain equipment inoperative, performing an operational test of a certain contactor and an electrical test of a certain battery toggle switch, and corrective actions if necessary, as specified in a European Union Aviation Safety Agency EASA AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD becomes effective May 14, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of May 14, 2021.
The FAA must receive comments on this AD by June 28, 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: 2024932251.
Mail: U.S. Department of Transportation, Docket Operations, M
SUMMARY:

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