# Airworthiness Directives; Bombardier, Inc. Airplanes
> **Rule** · Final rule; request for comments. · Published 2016-06-22 · Effective 2016-07-07 · 81 FR 40488
## Document
- **Document number:** 2016-14578
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 81 FR 40488
- **Publication date:** 2016-06-22
- **Effective date:** 2016-07-07
- **FAA docket:** Docket No. FAA-2016-7266
## Abstract

We are superseding Airworthiness Directive (AD) 2016-09-04 for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. AD 2016-09-04 required replacement of incorrectly calibrated angle of attack (AOA) transducers. This new AD requires the same actions as AD 2016-09-04. This new AD was prompted by a report of a typographical error in the regulatory text of AD 2016-09-04. We are issuing this AD detect and replace incorrectly calibrated AOA transducers; incorrect calibration of the transducers could result in late activation of the stick pusher.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/06/22/2016-14578/airworthiness-directives-bombardier-inc-airplanes)
---
*AI Analytics · CC0 1.0*