What was found
EDGE LIFTING ON SUPPORT BRACKET, DUE TO POSSIBLY MISFORMED SHOP HEADS ON RIVETS. BRACKET LOCATED IN FWD AVIONICS BAY, ON FRONT SIDE OF BULKHEAD/CROSSBEAM FS280, 26" LBL (FILED CLOSED) REMOVED AND REPLACED SUPPORT BRACKET/ANGLE LOCATED FWD AVIONICS BAY ON FRONT SIDE OF BULKHEAD/CROSSBEAM FS280 LBL26 WITH REFERENCE TO SRM 51-42-06. COMPLIED WITH TASK CARD 51-900-1002-SKY, COMPLETED M-337.