Narrative:

During taxi out for departure all systems and checks were normal and the tower cleared us for takeoff. As we took the runway; I completed a positive transfer of aircraft control to the co-pilot. Takeoff power was selected and at about 70 KIAS there was a reverser unlocked ECAM that both pilots observed. At about 80 KIAS; I took positive control of the aircraft back from the co-pilot and initiated an abort. We brought the aircraft to a safe stop and exited the runway. There were no reported problems from the cabin crew or passengers. After contacting dispatch and maintenance control we taxied the aircraft back to the gate without further problems.

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Original NASA ASRS Text

Title: An A320 flight crew initiated a low speed rejected takeoff upon receipt of a Reverser Unlocked ECAM at about 70 KIAS.

Narrative: During taxi out for departure all systems and checks were normal and the Tower cleared us for takeoff. As we took the runway; I completed a positive transfer of aircraft control to the co-pilot. Takeoff power was selected and at about 70 KIAS there was a Reverser Unlocked ECAM that both pilots observed. At about 80 KIAS; I took positive control of the aircraft back from the co-pilot and initiated an abort. We brought the aircraft to a safe stop and exited the runway. There were no reported problems from the cabin crew or passengers. After contacting Dispatch and Maintenance Control we taxied the aircraft back to the gate without further problems.

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.