<< >> NASA ASRS Report 1127184, November 2013

A first officer reports about a yaw damper that failed shortly after takeoff; followed by a rudder system-1 and rudder system-2 'inoperative' EICAS message on their emb-145 aircraft. Flight crew declared an emergency due to loss of rudder flight control system and returned to departure airport.

Attributes
ACN	1127184
Time
Date	201311
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Rudder Control System
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Inflight Event / Encounter Other / Unknown

Narrative:

During takeoff; after engaging the yaw damper (yd); the yd failed and shortly after we got rudder system (1) and (2) inoperative (inoperative) message on the EICAS. We ran through the checklist and declared an emergency; we returned to the airport and landed. Our training worked and we landed safely. The crew coordination and communication worked very well.

Related reports:

• After takeoff a md-11 EICAS alerted lvl 1 ail deflect inoper...
• An emb-145 alerted master caution for main pitch trim inoper...

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Original NASA ASRS Text

Title: A First Officer reports about a Yaw Damper that failed shortly after takeoff; followed by a Rudder System-1 and Rudder System-2 'INOP' EICAS message on their EMB-145 aircraft. Flight crew declared an emergency due to loss of Rudder Flight Control System and returned to departure airport.

Narrative: During takeoff; after engaging the Yaw Damper (YD); the YD failed and shortly after we got Rudder System (1) and (2) inoperative (INOP) message on the EICAS. We ran through the Checklist and declared an emergency; we returned to the airport and landed. Our training worked and we landed safely. The crew coordination and communication worked very well.

Data retrieved from NASA's ASRS site as of July 2013 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.