# Proposed AD FAA-2015-3941: Airbus Helicopters Deutschland GmbH Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-18-11
- Products: Airbus Helicopters Deutschland
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period.
- Published: April 28, 2020, 85 FR 23492
- Comments due: May 5, 2016
- Became: [AD 2020-18-11](https://openairdocs.org/ad/2020-18-11)
- Docket: FAA-2015-3941 (https://www.regulations.gov/docket/FAA-2015-3941, where comments are filed)
- FR document: 2020-08902
- Official PDF: https://openairdocs.org/files/sha256/df/5e/df5ec30528c8ca0d7eea6185edcdd96e5e4287bfe2e8d30e2b0056e033df8157 (from https://www.govinfo.gov/content/pkg/FR-2020-04-28/pdf/2020-08902.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/04/28/2020-08902/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AADDC32171DCE3A08625855800422EF1.0001
- Page: https://openairdocs.org/proposed/FAA-2015-3941

## Summary

The FAA is revising an earlier proposal for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117A-3, MBB-BK 117A- 4, MBB-BK 117B-1, MBB-BK 117B-2, and MBB-BK 117C-1 helicopters. This action revises the notice of proposed rulemaking (NPRM) by expanding the applicability and proposing to add requirements to replace certain seals with newly certified seals and revise the Rotorcraft Flight Manual (RFM) for your helicopter. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these actions would impose an additional burden over those in the NPRM, the FAA is reopening the comment period to allow the public the chance to comment on these changes.

## Notices in this docket

- May 5, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-10285, comments due Jul 5, 2016 (https://www.federalregister.gov/documents/2016/05/05/2016-10285/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters)
- Apr 28, 2020: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period., FR document 2020-08902, comments due May 5, 2016 (https://www.federalregister.gov/documents/2020/04/28/2020-08902/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters)

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