What was found
DURING HEAVY CHECK MAINTENANCE, CORROSION WAS DISCOVERED ON LEFT SIDE FLOORBEAM Y1292 AT FRAME 20. R & R THE FLOORBEAM IAW SRM 51-72-11.
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 LEFT SIDE FLOORBEAM Y1292 AT FRAME 20. R & R THE FLOORBEAM IAW SRM 51-72-11.