As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - DURING C-CHECK INSPECTION REPORTED CORROSION ON FLOORBEAM 291.5, LBL 20 TO RBL 40 (MAIN CABIN FLOOR). MAINTENANCE REMOVED CORROSION AND DAMAGED UPPER CHORD, FABRICATED REPLACEMENT PARTS AND REPAIRED PER SRM 53-10-51 AND 51-40-2. (M)