A321
Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 22000
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Rejected Takeoff
Aircraft; Procedure
On clearance for takeoff; First Officer; Pilot Flying; set initial power setting to %50 N1. He didn't like how slowly one engine was accelerating to %50 versus the other one so he pulled the throttles back to idle. Since this was a rolling takeoff we had no choice at that point but to reject. So we cleared off the runway. As the Captain with 2;000 hours in this aircraft I didn't see that the delay between engine accelerations was all that abnormal. So we talked about letting the engines stabilize at %50 with brakes set on our next takeoff. We got back in line and re-ran all the checklists. On takeoff we left the brakes on while setting %50. Engine accelerations were normal so we went on our way.
First Flight of day. I was flying pilot. Airbus had CFM engines. Cleared for takeoff. Brought thrust levers to 50%. Held brakes. Left engine accelerated to 50%. Right engine did not accelerate normally. Was at about 5 to 10% when the right engine was at 50%. I released the brakes and immediately set thrust levers to idle and exited runway. We were heavy and Captain aborted takeoff. Max speed was less than 20 KIAS or so. Taxied off; got back in line and took off normally.
A321 flight crew reported that first flight of the day the Number 2 engine was slow to spool.