# Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
> **Rule** · Final rule; request for comments. · Published 2019-09-04 · Effective 2019-09-19 · 84 FR 46429
## Document
- **Document number:** 2019-18708
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 84 FR 46429
- **Publication date:** 2019-09-04
- **Effective date:** 2019-09-19
- **FAA docket:** Docket No. FAA-2019-0643
## Abstract

The FAA is publishing a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Helicopters (Airbus) Model MBB- BK 117 C-2 helicopters. Emergency AD 2019-10-51 was sent previously to all known U.S. owners and operators of these helicopters. This AD requires, for certain helicopters, inspecting the fuselage frame and providing certain information to the FAA. This AD also prohibits installing certain components as part of Supplemental Type Certificate (STC) SR00592DE on any helicopter. This AD was prompted by reports of fatigue cracks in the fuselage frame. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/09/04/2019-18708/airworthiness-directives-airbus-helicopters-deutschland-gmbh-helicopters)
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