# Proposed AD FAA-2026-11812: Airbus Helicopters Deutschland GmbH (AHD) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Comments due Nov 30
- Products: Airbus Helicopters Deutschland MBB-BK 117 D-2
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 15, 2026, 91 FR 65492
- Comments due: November 30, 2026
- Docket: FAA-2026-11812 (https://www.regulations.gov/docket/FAA-2026-11812, where comments are filed)
- Project: MCAI-2025-01222-R
- FR document: 2026-21123
- Official PDF: https://openairdocs.org/files/sha256/7d/ec/7dec07e77d04363e682716824d48687f47fb0cd07638b41c57548bd260a6c987 (from https://www.govinfo.gov/content/pkg/FR-2026-10-15/pdf/2026-21123.pdf)
- Federal Register: https://www.federalregister.gov/documents/2026/10/15/2026-21123/airworthiness-directives-airbus-helicopters-deutschland-gmbh-ahd-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2026-21123-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2026-11812

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-2 helicopters. This proposed AD was prompted by certification test results of a certain common cargo hook beam (CCHB) on the affected helicopters, which revealed that the installed CCHB could result in fuel leakage following a survivable accident. This proposed AD would require modification of the CCHB and fuel system and installation of structural reinforcement. This proposed AD would also prohibit installing a certain CCHB on any helicopter. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 15, 2026: Notice of proposed rulemaking (NPRM). (first notice), FR document 2026-21123, comments due Nov 30, 2026 (https://www.federalregister.gov/documents/2026/10/15/2026-21123/airworthiness-directives-airbus-helicopters-deutschland-gmbh-ahd-helicopters)

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