# Proposed AD FAA-2022-0875: Airbus Helicopters Deutschland GmbH (AHD) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-20-01
- Products: Airbus Helicopters Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 14, 2022, 87 FR 42106
- Comments due: August 29, 2022
- Became: [AD 2022-20-01](https://openairdocs.org/ad/2022-20-01)
- Docket: FAA-2022-0875 (https://www.regulations.gov/docket/FAA-2022-0875, where comments are filed)
- Project: MCAI-2022-00640-R
- FR document: 2022-15024
- Official PDF: https://openairdocs.org/files/sha256/fe/db/fedb62071d1497a2b7c445f1f62ba38a346c86966c63c75df685ca7cd3fd7c0e (from https://www.govinfo.gov/content/pkg/FR-2022-07-14/pdf/2022-15024.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/07/14/2022-15024/airworthiness-directives-airbus-helicopters-deutschland-gmbh-ahd-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-15024-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0875

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 C-2 helicopters. This proposed AD was prompted by reports of excessively worn bolts that connect the cardan-pivot joint with the piston rod of the tail rotor actuator (TRA) assembly. This proposed AD would require repetitively inspecting certain TRA assemblies, and depending on the results, replacing or repairing parts, or accomplishing additional inspections. This proposed AD would also prohibit installing an affected TRA assembly unless it passes required inspections. Lastly, this proposed AD would provide terminating actions for certain inspections, 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

- Jul 14, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-15024, comments due Aug 29, 2022 (https://www.federalregister.gov/documents/2022/07/14/2022-15024/airworthiness-directives-airbus-helicopters-deutschland-gmbh-ahd-helicopters)

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