Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2017-12-13 · Effective 2017-12-28 · 82 FR 58533
Document
Document number
2017-26621
Federal Register citation
82 FR 58533
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
ATR-GIE Avions de Transport Régional
Publication date
2017-12-13
Effective date
2017-12-28
FAA docket
Docket No. FAA-2017-1101
Abstract
We are adopting a new airworthiness directive (AD) for certain ATR-GIE Avions de Transport R[eacute]gional Model ATR42-500 and ATR72- 212A airplanes. This AD requires revising the airplane flight manual to provide procedures to the flightcrew for operational restrictions affecting in-flight use of the autopilot (AP) or yaw damper (YD) during single source operation. This AD was prompted by flight test evaluations that revealed discrepancies with the YD and AP when in single source operation on certain airplanes. We are issuing this AD to address the unsafe condition on these products.