# Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
> **Rule** · Final rule; request for comments. · Published 2017-11-28 · Effective 2017-12-13 · 82 FR 56163
## Document
- **Document number:** 2017-25189
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 82 FR 56163
- **Publication date:** 2017-11-28
- **Effective date:** 2017-12-13
- **FAA docket:** Docket No. FAA-2017-0933
## Abstract

We are adopting a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model MBB-BK 117 D-2 helicopters. This AD requires amending the rotorcraft flight manual to establish a minimum airspeed limitation for the autopilot cruise height mode. This AD is prompted by two reports of uncommanded helicopter climbs and descents. The actions of this AD are intended to address an unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/11/28/2017-25189/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters)
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