Narrative:

The number one engine would not advance to full takeoff power with both thrust levers in the flex detent. Number two engine was at full flex takeoff power of 1.60 EPR and number one would only achieve 1.40 EPR. The takeoff was rejected at approximately 70 KTS. All else after the rejected takeoff was normal. The aircraft ended up returning to the gate and turned over to maintenance. Everything was normal until we tried to advance the power for takeoff. Number one engine just wouldn't advance to takeoff EPR.

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Original NASA ASRS Text

Title: An A321 engine would not develop full flex takeoff power. The takeoff was rejected and the aircraft returned to the gate.

Narrative: The number one engine would not advance to full takeoff power with both thrust levers in the flex detent. Number two engine was at full flex takeoff power of 1.60 EPR and number one would only achieve 1.40 EPR. The takeoff was rejected at approximately 70 KTS. All else after the rejected takeoff was normal. The aircraft ended up returning to the gate and turned over to maintenance. Everything was normal until we tried to advance the power for takeoff. Number one engine just wouldn't advance to takeoff EPR.

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.