Airworthiness Directives; Bombardier, Inc. Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2019-08-08 · Effective 2019-08-23 · 84 FR 38862
Document
Document number
2019-16811
Federal Register citation
84 FR 38862
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Publication date
2019-08-08
Effective date
2019-08-23
FAA docket
Docket No. FAA-2019-0578
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by a report of a mis-installed no-back pawl discovered on a horizontal stabilizer trim actuator (HSTA). This AD requires an inspection to verify the horizontal stabilizer trim electronic control unit (HSTECU) part number, a software upgrade for certain HSTECUs, and installation of HSTECUs with upgraded software. The FAA is issuing this AD to address the unsafe condition on these products.