# Proposed AD FAA-2021-0611: Airbus Helicopters Deutschland GmbH Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-21-01
- Products: Airbus Helicopters Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 3, 2021, 86 FR 41791
- Comments due: September 17, 2021
- Became: [AD 2021-21-01](https://openairdocs.org/ad/2021-21-01)
- Docket: FAA-2021-0611 (https://www.regulations.gov/docket/FAA-2021-0611, where comments are filed)
- Project: MCAI-2021-00038-R
- FR document: 2021-16467
- Official PDF: https://openairdocs.org/files/sha256/3e/d8/3ed80f0a99668b5b91a3b603ff6fd1bb7bc2e7a913c3519dc0008ae4c01560ec (from https://www.govinfo.gov/content/pkg/FR-2021-08-03/pdf/2021-16467.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/08/03/2021-16467/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/228AF3BD35D47554862587260076E469.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0611

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2019-05-06, which applies to Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, and EC135T3 helicopters. AD 2019-05-06 requires replacing the retaining ring, inspecting the hoist cable hook assembly, and, if necessary, replacing the elastomeric energy absorber. Since the FAA issued AD 2019-05-06 the design approval holder (DAH) has designed an updated hook assembly, which, when installed, terminates the repetitive inspections required by AD 2019-05-06. This proposed AD would continue to require the actions specified in AD 2019-05-06, and would also require a modification or replacement of the hoist cable hook assembly that would terminate the repetitive inspections and retaining ring replacements, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing thisAD to address the unsafe condition on these products.

## Notices in this docket

- Aug 3, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-16467, comments due Sep 17, 2021 (https://www.federalregister.gov/documents/2021/08/03/2021-16467/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters)

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