# Proposed AD FAA-2021-0126: Airbus Helicopters Deutschland GmbH (AHD) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-10-23
- Products: Airbus Helicopters Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 3, 2021, 86 FR 12294
- Comments due: April 19, 2021
- Became: [AD 2021-10-23](https://openairdocs.org/ad/2021-10-23)
- Docket: FAA-2021-0126 (https://www.regulations.gov/docket/FAA-2021-0126, where comments are filed)
- Project: MCAI-2020-00266-R
- FR document: 2021-03955
- Official PDF: https://openairdocs.org/files/sha256/04/7f/047f9d43774cdfec099cc18b597fa807fd5eced6de31f9b0d7fdce71944e7ee4 (from https://www.govinfo.gov/content/pkg/FR-2021-03-03/pdf/2021-03955.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/03/03/2021-03955/airworthiness-directives-airbus-helicopters-deutschland-gmbh-ahd-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A01FADA597DF2DAA8625868D0079F929.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0126

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-2 helicopters. This proposed AD was prompted by a report of a broken Titanium (Ti) bolt. This proposed AD would require removing certain Ti- bolts from service and prohibit installing these Ti-bolts in a critical area. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Mar 3, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-03955, comments due Apr 19, 2021 (https://www.federalregister.gov/documents/2021/03/03/2021-03955/airworthiness-directives-airbus-helicopters-deutschland-gmbh-ahd-helicopters)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.