A320
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Last 90 Days 17.83; Flight Crew Total 1891.37; Flight Crew Type 1891.37
Troubleshooting
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Flight Crew Returned To Gate; Flight Crew Rejected Takeoff; General Maintenance Action; General Flight Cancelled / Delayed
Aircraft; Procedure; Human Factors
Previous flight had reported engine fluctuations on takeoff and climbout. Maintenance took a look at the plane and Ops checked it good. On our takeoff; once takeoff thrust was set we began a normal reduced thrust takeoff with an EPR (Engine Pressure Ratio) setting of about 1.41. Once above 80 knots the Captain called out that the EGT and N1 were fluctuating and took control of the aircraft and performed the Reject. The auto brakes engaged at Max. We made the required callouts; cleared the runway and performed the QRC. We did receive HOT Brakes due to the reject and allowed them to cool before returning to the gate.
Advancing power was normal with Flex FMA (Flight Mode Annunciator) displayed and EPR (Engine Pressure Ratio) thrust set prior to 80 kts. As the aircraft accelerated EPR indication on eng 1 began to fluctuate. As takoff roll continued EPR EGT and N1 began fluctuations with EPR going above yellow tick mark and almost as low as 1.3 EPR (TO EPR was 1.43). Reject was initiated at approximately 110 kts and we noticed ATC and cabin and cleared the runway to run the rejected to checklist. After allowing the brakes to cool we returned to the terminal.
A320 flight crew reported a rejected takeoff after engine fluctuations reoccurred during takeoff roll and returned to the gate.