Narrative:

All checks completed all normal. Took off and at approximately 500 ft AGL had the red thrust reverser unlock light come on and the auto checklist came up for the right engine. We declared an emergency followed the checklist and returned to the departure airport with the unlock light still illuminated. We returned without incident and landed as instructed by the checklist.

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Original NASA ASRS Text

Title: A GIV aircraft's right engine red THRUST REVERSER UNLOCK light illuminated after takeoff; so the auto checklist was completed; an emergency declared and the flight returned to the departure airport.

Narrative: All checks completed all normal. Took off and at approximately 500 FT AGL had the red THRUST REVERSER UNLOCK light come on and the auto checklist came up for the right engine. We declared an emergency followed the checklist and returned to the departure airport with the unlock light still illuminated. We returned without incident and landed as instructed by the checklist.

Data retrieved from NASA's ASRS site 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.