# Airworthiness Directives; Airbus Helicopters Deutschland GmbH (AHD) Helicopters
> **Rule** · Final rule. · Published 2021-07-13 · Effective 2021-08-17 · 86 FR 36633
## Document
- **Document number:** 2021-14778
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 36633
- **Publication date:** 2021-07-13
- **Effective date:** 2021-08-17
- **FAA docket:** Docket No. FAA-2021-0308
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH (AHD) Model BO-105A, BO- 105C, BO-105S, and BO-105LS A-3 helicopters. This AD was prompted by an uncommanded activation of the hoist cable cutter function on an MBB- BK117 C-1 helicopter, which prompted a design review of the BO105 hoist control grip with coiled cable. This AD requires inspections of the hoist control grip with coiled cable and deactivation of the hoist cutter function, as specified in a European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/07/13/2021-14778/airworthiness-directives-airbus-helicopters-deutschland-gmbh-ahd-helicopters)
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