What was found
DURING HEAVY MAINTENANCE FOUND AFT WET AREA BEAM Y580 CORRODED AROUND LAV F/A SEAT TRACK FRAME 66 R & R FLOORBEAM AT FR 66, Y580 AFT WET AREA AT LAV F/A SEAT TRACK FRAME IAW SRM 51-72-11 & 51-42-11.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE FOUND AFT WET AREA BEAM Y580 CORRODED AROUND LAV F/A SEAT TRACK FRAME 66 R & R FLOORBEAM AT FR 66, Y580 AFT WET AREA AT LAV F/A SEAT TRACK FRAME IAW SRM 51-72-11 & 51-42-11.