<< >> NASA ASRS Report 973654, October 2011

A CRJ50 EICAS alerted right rev unlocked at 125 KTS on takeoff and the captain continued because the aircraft was performing normally but declared an emergency and returned to land.

Attributes
ACN	973654
Time
Date	201110
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet CL65 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Turbine Engine Thrust Reverser
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Received a right rev unlocked caution message during takeoff at 125 KTS (V1 was 139 KTS). Continued takeoff. Complied with QRH. Did not feel any abnormal buffeting or yaw or performance degradation. Did not shut down the number two engine. Returned to the departure for an uneventful landing. Amended dispatch release with dispatch and called maintenance control to have a mechanic fix the aircraft. Declared emergency with ATC.

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Original NASA ASRS Text

Title: A CRJ50 EICAS alerted R REV UNLOCKED at 125 KTS on takeoff and the Captain continued because the aircraft was performing normally but declared an emergency and returned to land.

Narrative: Received a R REV UNLOCKED caution message during takeoff at 125 KTS (V1 was 139 KTS). Continued takeoff. Complied with QRH. Did not feel any abnormal buffeting or yaw or performance degradation. Did not shut down the number two engine. Returned to the departure for an uneventful landing. Amended dispatch release with dispatch and called Maintenance Control to have a mechanic fix the aircraft. Declared emergency with ATC.

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.