As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-16 CHECK A .5 INCH CRACK WAS FOUND ON PASSENGER CABIN FLOORBEAM AT BS 520, LBL 24. MAINTENANCE STOP DRILLED CRACK ON FLOORBEAM AT BS 520, LBL 24 AND PERFORMED HFEC INSPECTION TO VERIFY CRACK IS CONTAINED; FABRICATED 2 EACH REPAIR ANGLES; INSTALLED REPAIR PARTS IAW AWA ER 15-5311-03241-ES2.