# Airworthiness Directives; Bombardier, Inc., Airplanes
> **Rule** · Final rule. · Published 2017-09-18 · Effective 2017-10-23 · 82 FR 43457
## Document
- **Document number:** 2017-19658
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 43457
- **Publication date:** 2017-09-18
- **Effective date:** 2017-10-23
- **FAA docket:** Docket No. FAA-2016-8177
## Abstract

We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. This AD was prompted by a determination that a certain task in the aircraft maintenance manual (AMM) will not accomplish the intent of a candidate certification maintenance requirement (CCMR) for detecting dormant failures of the pitch feel (PF) and rudder travel limiter actuator (RTLA) back-up modules. This AD requires doing an operational test of the flight control unit (FCU) back-up modules, and repair if necessary. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/09/18/2017-19658/airworthiness-directives-bombardier-inc-airplanes)
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