What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND CORROSION ON FUEL CELL UPPER SKIN BS 770 TO 800, LBL 64. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS PER SRM 57-30-1. CUT OUT CORRODED SKIN AND REPAIRED PER EO B727-5730-7506-A.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE IN FOR C-CHECK, MAINTENANCE FOUND CORROSION ON FUEL CELL UPPER SKIN BS 770 TO 800, LBL 64. REMOVED CORROSION, FOUND TO BE OUT OF LIMITS PER SRM 57-30-1. CUT OUT CORRODED SKIN AND REPAIRED PER EO B727-5730-7506-A.