A B757-200 captain and first officer report a right engine amber reverser indication appeared on the...

Attributes
ACN	860890
Time
Date	200911
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Reverser Position Indication
Person 1
Function	Captain Pilot Not Flying
Person 2
Function	First Officer Pilot Flying
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Upon level off; the right engine amber reverser indication appeared on EICAS screen. Quick reference handbook (QRH) procedure completed; an emergency was declared; and safe return to our departure airport accomplished. The rev indication remained on for approximately 10 minutes; then went out. EICAS indication returned upon landing and did not extinguish. We cleared the runway; stopped the aircraft and the airport rescue and fire fighting (arff) personnel inspected right engine and reported nothing unusual. Right engine was then shut down after appropriate cool down time. After gate arrival; maintenance reported 'sync lock' failure on right engine.

Original NASA ASRS Text

Title: A B757-200 Captain and First Officer report a right engine amber reverser indication appeared on their EICAS screen during cruise. Quick Reference Handbook procedure was completed; an emergency declared and an air turnback to their departure airport. The right engine reverser sync-lock had failed.

Narrative: Upon level off; the right engine amber reverser indication appeared on EICAS screen. Quick Reference Handbook (QRH) procedure completed; an emergency was declared; and safe return to our departure airport accomplished. The REV indication remained on for approximately 10 minutes; then went out. EICAS Indication returned upon landing and did not extinguish. We cleared the runway; stopped the aircraft and the Airport Rescue and Fire Fighting (ARFF) personnel inspected right engine and reported nothing unusual. Right engine was then shut down after appropriate cool down time. After gate arrival; Maintenance reported 'Sync Lock' failure on right engine.

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.

A B757-200 captain and first officer report a right engine amber reverser indication appeared on their EICAS screen during cruise. Quick reference handbook procedure was completed; an emergency declared and an air turnback to their departure airport. The right engine reverser sync-lock had failed.