What was found
DURING HEAVY CHECK MAINTENANCE, CORROSION WAS DISCOVERED ON FLOORBEAM AT FRAME 75 STR 29L-29R. R & R THE FLOORBEAM IAW SRM 51-40-01.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK MAINTENANCE, CORROSION WAS DISCOVERED ON FLOORBEAM AT FRAME 75 STR 29L-29R. R & R THE FLOORBEAM IAW SRM 51-40-01.