What was found
DURING TAXI THE AUTOTHROTTLES DISENGAGED AND WOULD NOT RE-ENGAGE. CIRCUIT BREAKERS ALL IN. FMC DATA ALL COMPLETE. GROUNDED - YES. UNABLE TO DUPLICATE DEFECT. AUTOTHROTTLE BITE PER FIM 22-31 TASK 801 SHOWED FAULT CODE 22-31263 "A/T 28 VDC PWR INV" LOGGED FOR LEG 4 BUT CURRENT STATUS TEST PASSED WITH NO FAULTS. ACCOMPLISHED T/S FOR FAULT 22-31263 PER FIM 22-31 TASK 810 - INITIAL EVALUATION DID NOT CONFIRM FAULT. PERFORMED AUTOTHROTTLE OPERATIONAL TEST PER MM 22-31-00-710-801 AND AUTOTHROTTLE SYSTEM - SYSTEM TEST PER MM 22-31-00-710-802 - ALL TESTS PASS.