What was found
ABORTED T/O DUE TO 2.5 KNOB THRUST LEVER STAGGER WITH AUTOTHROTS ENGAGED, THROT HOLD IN EFFECT, NR 2 THROT IN ADVANCED POSITION. MAINT TROUBLESHOT PROBLEM, PERFORMED AUTOTHROT STAT TEST & RANGE CHECK, BOTH OK. BOTH ENGS RAN TO T/O POWER WITH PMCS ON, NO DISCREPANCIES, WITH PMCS OFF A .25 KNOB SPLIT, EVERYTHING ELSE OK. AUTOTHROT SYS NEEDS MORE TROUBLESHOOTING, PLACED ON MEL, COND. NR 1. AUTOTHROT SYS INOP. MAINT CHECKED FLT FAULT RECORD, ALL BUT 1 OF FLTS INDICATED NR 1 PMC/PLA FAULTED. R & R NR 2 ENG PMC, AUTOTHROT BITE TEST GOOD. BENCH TEST PMC CONFIRMED FAILURE. UNIT FAILED TEST FOR TORQUE MOTOR LIMITER CHECK AS FUNCTION OF PLA. R & R A9 MODULE AND RESELECTED A6 MODULE AS C/A. UNIT RETURNED TO SERVICE.