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Federal Register / Vol. 86, No. 97 / Friday, May 21, 2021 / Proposed Rules
Note 1 to paragraph c: A TGB shaft is also referred to as a mast gear assembly.
d Subject Joint Aircraft Service Component JASC
Code: 6510, Tail Rotor Drive Shaft.
e Unsafe Condition This AD was prompted by two occurrences of corrosion on the internal surface of the TGB shaft. The FAA is issuing this AD to detect corrosion of the TGB shaft. The unsafe condition, if not addressed, could result in failure of the tail rotor, possibly resulting in reduced control of the helicopter.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions 1 Within 25 hours time-in-service TIS or 3 months, whichever occurs first after the effective date of this AD, and thereafter at intervals not to exceed 6 months, borescope inspect the entire internal surface of the TGB
shaft for corrosion. Refer to Detail A of Figure 1 of ASB 119090, for a depiction of the entry point for the borescope. If there is corrosion, before further flight, remove the TGB from service.
2 As of the effective date of this AD, do not install on any helicopter any TGB P/N
109044006101 or 109044006105 that has TGB shaft P/N 109044303107 having an S/N listed in Table 1 of ASB 119090, unless the actions required by paragraph g1 of this AD have been accomplished.
h Special Flight Permits A special flight permit may be permitted provided that there are no passengers onboard.

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j Related Information 1 For more information about this AD, contact Rao Edupuganti, Aerospace Engineer, Dynamic Systems Section, Technical Innovation Policy Branch, FAA, 10101
Hillwood Pkwy., Fort Worth, TX 76177;
telephone 817 2225110; email rao.edupuganti@faa.gov.
2 For service information identified in this AD, contact Leonardo S.p.a. Helicopters, Emanuele Bufano, Head of Airworthiness,
16:41 May 20, 2021

Jkt 253001

Issued on May 15, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202110700 Filed 52021; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210372; Project Identifier MCAI202001684T
RIN 2120AA64

Airworthiness Directives; Airbus SAS
Airplanes Federal Aviation Administration FAA, DOT.
ACTION: Notice of proposed rulemaking NPRM.
AGENCY:

i 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 j1 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.

VerDate Sep<11>2014

Viale G.Agusta 520, 21017 C.Costa di Samarate Va Italy; telephone +390331
225074; fax +390331229046; or at https
www.leonardocompany.com/en/home. You may view this referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817 2225110.
3 The subject of this AD is addressed in European Union Aviation Safety Agency EASA AD 20200206, dated September 30, 2020. You may view the EASA AD on the internet at https www.regulations.gov in the AD Docket.

The FAA proposes to supersede Airworthiness Directive AD
20202105, which applies to all Airbus SAS Model A330200 Freighter, A330
200, A330300, A330900, A340200, A340300, A340500, and A340600
series airplanes. AD 20202105
requires repetitive inspections of certain fuel pumps for cavitation erosion, replacement if necessary, revision of the operators minimum equipment list MEL, and accomplishment of certain maintenance actions related to defueling and ground fuel transfer operations.
Since the FAA issued AD 20202105, a determination was made that certain compliance times need to be revised and that additional airplanes are subject to the unsafe condition. This proposed AD would retain the requirements of AD
20202105, revise certain compliance times, and expand the applicability, as specified in a European Union Aviation Safety Agency EASA AD, which is proposed for incorporation by reference.
The FAA is proposing this AD to address the unsafe condition on these products.

SUMMARY:

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The FAA must receive comments on this proposed AD by July 6, 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, M30, West Building Ground Floor, Room W12140, 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 material that will be incorporated by reference 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 this IBR material 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.
It is also available in the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2021
0372.
DATES:

Examining the AD Docket You may examine the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2021
0372; 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:
Vladimir Ulyanov, Aerospace Engineer, Large Aircraft Section, International Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198;
telephone and fax 2062313229; email vladimir.ulyanov@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.
FAA20210372; Project Identifier MCAI202001684T at the beginning
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