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Federal Register / Vol. 86, No. 138 / Thursday, July 22, 2021 / Proposed Rules
Total Hours TIS

Compliance Time for
Compliance Time for
Accumulated
Initial Ins ection
Re etitive Ins ections
ess than 400 total hours TIS

ithin 55 hours TIS after the
ithin 55 hours TIS

ffective date of this AD
00 or more total hours TIS

ithin 25 hours TIS after the
ithin 25 hours TIS

ffective date of this AD
Figure 1 to Paragraph g5

Total Hours TIS

Compliance Time for
Compliance Time for
Accumulated
Initial Ins ection
Re etitive Ins ections
ess than 400 total hours TIS efore exceeding 400 hours
ithin 55 hours TIS

IS after the effective date o
ithin 55 hours TIS after the
00 or more total hours TIS

ithin 55 hours TIS

ffective date of this AD

h 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
VerDate Sep<11>2014

16:30 Jul 21, 2021

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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 i1 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.
i Related Information 1 For more information about this AD, contact Rao Edupuganti, Aerospace Engineer, Dynamic Systems Section, Technical Innovation Policy Branch, Policy &
Innovation Division, 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 Airbus Helicopters, 2701
North Forum Drive, Grand Prairie, TX 75052;
telephone 972 6410000 or 800 2320323;
fax 972 6413775; or at https
www.airbus.com/helicopters/services/

PO 00000

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technical-support.html. You may view the referenced service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N
321, Fort Worth, TX 76177.
3 The subject of this AD is addressed in European Aviation Safety Agency now European Union Aviation Safety Agency EASA AD 20180263, dated December 7, 2018. You may view the EASA AD on the internet at https www.regulations.gov in the AD Docket.
Issued on July 14, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202115477 Filed 72121; 8:45 am BILLING CODE 491013P

E:FRFM22JYP1.SGM

EP22JY21.002

6 As of the effective date of this AD, do not install a type Y planet gear assembly with an S/N listed in Appendix 4.A. of ASB
EC15505A034 Rev 5 on any helicopter, and do not install an MGB with a Type Y planet gear assembly with an S/N listed in Appendix 4.A. of ASB EC15505A034 Rev 5
on any helicopter.
7 As of the effective date of this AD, do not install a Type Z planet gear assembly with an S/N listed in Appendix 4.B. of ASB
EC15505A034 Rev 5 that has accumulated 1,800 or more total hours TIS on any helicopter, and do not install an MGB with at least one Type Z planet gear assembly with an S/N listed in Appendix 4.B. of ASB
EC15505A034 Rev 5 that has accumulated 1,800 or more total hours TIS on any helicopter.
8 As of the effective date of this AD, do not install any planet gear on any helicopter if the planet gear assembly type cannot be determined, and do not install any MGB on any helicopter if any of the planet gear assembly types cannot be determined.

22JYP1

EP22JY21.001

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Figure 2 to Paragraph g5