What was found
DURING HEAVY MAINTENANCE VISIT, PASSENGER CABIN FLOOR BEAM CORRODED AT BS 520, LBL 4, 16, 21. REPAIRED PER ECO2641. AIRCRAFT RETURNED TO SERVICE. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE VISIT, PASSENGER CABIN FLOOR BEAM CORRODED AT BS 520, LBL 4, 16, 21. REPAIRED PER ECO2641. AIRCRAFT RETURNED TO SERVICE. (M)