# Proposed AD FAA-2020-0801: Airbus Helicopters Deutschland GmbH Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-06-05
- Products: Airbus Helicopters Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 27, 2020, 85 FR 52931
- Comments due: October 13, 2020
- Became: [AD 2021-06-05](https://openairdocs.org/ad/2021-06-05)
- Docket: FAA-2020-0801 (https://www.regulations.gov/docket/FAA-2020-0801, where comments are filed)
- FR document: 2020-18696
- Official PDF: https://openairdocs.org/files/sha256/07/92/0792b896c08ce00b6ccd2798a9c9dbb74158bc30057bf4c9d7208a0e82a9cdb7 (from https://www.govinfo.gov/content/pkg/FR-2020-08-27/pdf/2020-18696.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/08/27/2020-18696/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CC08961646A3CBD7862585D10043FDB7.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0801

## Summary

The FAA proposes to supersede Airworthiness Directive (AD) 2017-07-08 for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 D-2 helicopters. AD 2017-07-08 requires repetitively inspecting each engine mount elastomeric bushing (elastomeric bushing). Since the FAA issued AD 2017-07-08, Airbus Helicopters has designed an improved engine mount metal bushing (metal bushing). This proposed AD would retain the inspection requirements of AD 2017-07-08 and would require replacing each affected engine mount bushing with an improved engine mount bushing, while also requiring repetitive inspections of the improved engine mount bushing. This proposed AD would also prohibit installing an elastomeric bushing on any helicopter. The actions of this proposed AD are intended to address an unsafe condition on these products.

## Notices in this docket

- Aug 27, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-18696, comments due Oct 13, 2020 (https://www.federalregister.gov/documents/2020/08/27/2020-18696/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters)

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