Airworthiness Directives; Bombardier, Inc. Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2013-07-25 · Effective 2013-08-09 · 78 FR 44871
Document
Document number
2013-17294
Federal Register citation
78 FR 44871
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Publication date
2013-07-25
Effective date
2013-08-09
FAA docket
Docket No. FAA-2013-0623
Abstract
We are adopting a new airworthiness directive (AD) for all Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440), CL- 600-2C10 (Regional Jet Series 700, 701, & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) airplanes. This AD requires revising the airplane flight manual (AFM) by incorporating an emergency procedure for uncommanded yaw motion. This AD was prompted by reports of airplanes experiencing uncommanded rudder movements while in flight. We are issuing this AD to advise the flightcrew of procedures to address a possible failure of the voltage regulator inside the yaw damper actuator that could lead to uncommanded yaw movement and consequent loss of the ability to control the airplane.