Narrative:

On takeoff roll first officer; acting as PF; stabilized power prior to selecting flex takeoff power. Flex temperature 44 degrees C; target EPR 1.35. After selecting flex power; engine #1 started to surge with every surge getting worse. Power fluctuated between 1.20 and 1.45 EPR. Decided to reject takeoff. Speed at that time was 50 KTS. Taxied off runway into taxiway east. Attempted several times to contact maintenance control via ACARS without any response; then called maintenance ZZZ1 and was told that needed to talk to ZZZ as we were out of the gate. Sent ACARS message to dispatch to let them know what was happening and the response was 'keep me posted.' called ramp and returned to gate. In addition to the instrument indications; there was noticeable yaw and feedback from the rudder pedals. According to what the mechanics were discussing after we were at the gate and searched in the mcdu; there was either an fmu or eec failure.

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Original NASA ASRS Text

Title: AN A320 FLT CREW EXPERIENCED ENGINE SURGE ON TAKEOFF ROLL AND DECIDED TO REJECT THE TAKEOFF.

Narrative: ON TKOF ROLL FO; ACTING AS PF; STABILIZED PWR PRIOR TO SELECTING FLEX TKOF PWR. FLEX TEMP 44 DEGS C; TARGET EPR 1.35. AFTER SELECTING FLEX PWR; ENG #1 STARTED TO SURGE WITH EVERY SURGE GETTING WORSE. PWR FLUCTUATED BTWN 1.20 AND 1.45 EPR. DECIDED TO REJECT TKOF. SPD AT THAT TIME WAS 50 KTS. TAXIED OFF RWY INTO TXWY E. ATTEMPTED SEVERAL TIMES TO CONTACT MAINT CTL VIA ACARS WITHOUT ANY RESPONSE; THEN CALLED MAINT ZZZ1 AND WAS TOLD THAT NEEDED TO TALK TO ZZZ AS WE WERE OUT OF THE GATE. SENT ACARS MESSAGE TO DISPATCH TO LET THEM KNOW WHAT WAS HAPPENING AND THE RESPONSE WAS 'KEEP ME POSTED.' CALLED RAMP AND RETURNED TO GATE. IN ADDITION TO THE INST INDICATIONS; THERE WAS NOTICEABLE YAW AND FEEDBACK FROM THE RUDDER PEDALS. ACCORDING TO WHAT THE MECHS WERE DISCUSSING AFTER WE WERE AT THE GATE AND SEARCHED IN THE MCDU; THERE WAS EITHER AN FMU OR EEC FAILURE.

Data retrieved from NASA's ASRS site as of May 2009 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.