<< >> NASA ASRS Report 827625, March 2009

A captain reports he noticed the yaw dampers would not engage properly when he was flying a crj-900. The yaw damper switches were found to be installed in reverse order (backwards).

Attributes
ACN	827625
Time
Date	200903
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Component
Aircraft Component	Autoflight Yaw Damper
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 17839 Flight Crew Type 1085
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Maintenance Deviation - Procedural Published Material / Policy Deviation - Procedural FAR

Narrative:

I believe that I overlooked that the yaw damper switches were installed in reverse order (backwards). I flew this same plane 2 days later; and noticed that the yaw dampers would not engage properly.

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Original NASA ASRS Text

Title: A Captain reports he noticed the Yaw Dampers would not engage properly when he was flying a CRJ-900. The Yaw Damper switches were found to be installed in reverse order (backwards).

Narrative: I believe that I overlooked that the yaw damper switches were installed in reverse order (backwards). I flew this same plane 2 days later; and noticed that the yaw dampers would not engage properly.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.