What was found
AIRCRAFT WAS NOT GROUNDED: MOMENTARY LOSE OF BRAKES WITH ELECTRICAL PUMP OPERATING AS #2 ENGINE WAS SHUT DOWN. ACCOMPLISHED BSCU TEST BOTH CHANNELS 1 & 2, NO FAULT NOTED. ALSO ACCOMPLISHED NORMAL BRAKE & ALTERNATE BRAKE TEST, NO FAULT, CHECKED GOOD. FOUND FLIGHT WARNING COMPUTER (FWC) #1 FAULTING SEVERAL LEGS, REPLACED FLIGHT WARNING COMPUTER (FWC) #1 PER AMM 31-53-34. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.