What was found
FLIGHT 2882 - EWR - FLIGHT CREW REPORTED ELECTRICAL POWER LOSS IN FLIGHT AT 35,000 FT WITH A LOUD THUMP, MFD, PFD, EICAS ALL RED "X", AP FAIL. STALL TEST LIGHT ILLUMINATED BUT EVERYTHING CAME BACK A FEW SECONDS LATER. CREW LANDED ACFT AS PLANNED WITHOUT INCIDENT. EWR MX REMOVED AND REPLACED NR 1 INTEGRATED COMPUTER IC600 AND PERFORMED OPERATIONAL CHECK SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE. (S)