An A320 flight crew experienced engine surge on takeoff roll and decided to reject the takeoff.

Attributes
ACN	798258
Time
Date	200808
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzzz.artcc
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	798258
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	798010
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : rejected takeoff
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

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.

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.