What was found
DURING TAKE OFF, AT AROUND 100 KNOTS, NOTICED THE N1 ON THE NR 1 ENGINE WAS AT 85.5% WHEN THE TAKE OFF THRUST SETTING SHOULD HAVE BEEN 91.1% N1. NR 2 ENGINE WAS AT REQUIRED N1 SETTING. TIRED TO PUSH NR 1 THRUST LEVER UP BUT NOTICED NO INCREASE IN N1 OR EGT AROUND 20,000 ATTITUDE MSL, THE N1 MATCHED UP AGAIN. R & R FUEL PUMP IAW MT.