# Proposed AD FAA-2021-0496: Airbus Helicopters and Airbus Helicopters Deutschland GmbH (AHD) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-17-17
- Products: Airbus Helicopters, Airbus Helicopters Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 16, 2021, 86 FR 31995
- Comments due: August 2, 2021
- Became: [AD 2021-17-17](https://openairdocs.org/ad/2021-17-17)
- Docket: FAA-2021-0496 (https://www.regulations.gov/docket/FAA-2021-0496, where comments are filed)
- Project: MCAI-2020-00393-R
- FR document: 2021-12517
- Official PDF: https://openairdocs.org/files/sha256/22/1a/221a085e5f3015104127e15ee4647f07e095e8652516dd412e0a3fd1422e4d79 (from https://www.govinfo.gov/content/pkg/FR-2021-06-16/pdf/2021-12517.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/06/16/2021-12517/airworthiness-directives-airbus-helicopters-and-airbus-helicopters-deutschland-gmbh-ahd-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/298A56D4E0A80A95862586F600603024.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0496

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Airbus Helicopters Model AS332C, AS332C1, AS332L, AS332L1, AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, AS355E, AS355F, AS355F1, AS355F2, AS355N, AS355NP, AS-365N2, AS 365 N3, EC120B, EC130B4, EC130T2, EC 155B, EC155B1, SA-365N, and SA-365N1 helicopters; and Airbus Helicopters Deutschland GmbH (AHD) Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3, MBB-BK117 C-2, and MBB-BK117 D-2 helicopters. This proposed AD was prompted by failure of an Emergency Flotation System (EFS) float compartment to inflate during maintenance of the EFS. This proposed AD would require inspecting certain EFSs and depending on the results, marking certain parts or removing certain parts from service, as specified in a 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.

## Notices in this docket

- Jun 16, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-12517, comments due Aug 2, 2021 (https://www.federalregister.gov/documents/2021/06/16/2021-12517/airworthiness-directives-airbus-helicopters-and-airbus-helicopters-deutschland-gmbh-ahd-helicopters)

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