# Proposed AD FAA-2025-0630: Airbus Helicopters Deutschland GmbH Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2025-18-04
- Products: Airbus Helicopters Deutschland
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 25, 2025, 90 FR 17348
- Comments due: June 9, 2025
- Became: [AD 2025-18-04](https://openairdocs.org/ad/2025-18-04)
- Docket: FAA-2025-0630 (https://www.regulations.gov/docket/FAA-2025-0630, where comments are filed)
- Project: MCAI-2023-00518-R
- FR document: 2025-07112
- Official PDF: https://openairdocs.org/files/sha256/66/3e/663e80c2a35fbf785fabe84478a6398122fa4ab15ed35a1e649a1e4ff1089419 (from https://www.govinfo.gov/content/pkg/FR-2025-04-25/pdf/2025-07112.pdf)
- Federal Register: https://www.federalregister.gov/documents/2025/04/25/2025-07112/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2025-07112-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2025-0630

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3, EC635T2+, MBB- BK 117 C-2, MBB-BK 117 D-2, and MBB-BK 117 D-3 helicopters. This proposed AD was prompted by a review of design data and the determination for recalculation of accumulated hoist boom cycles (cycles) and repetitive inspections. This proposed AD would require determining the total cycles of certain hoist boom assemblies, inspecting those hoist boom assemblies, and depending on the results, taking corrective action. This proposed AD would also prohibit installing those hoist boom assemblies unless certain requirements are met. These actions are specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 25, 2025: Notice of proposed rulemaking (NPRM). (first notice), FR document 2025-07112, comments due Jun 9, 2025 (https://www.federalregister.gov/documents/2025/04/25/2025-07112/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters)

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