What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND UPON REMOVAL OF RBL 45 LONGITUDINAL BEAM, FUEL CELL UPPER SKIN TO BE CORRODED AT BS 865 TO 870, RBL 45 WL 178. BLENDED OUT CORROSION AND REPAIRED DOUBLER PER EO B727-5730-7514-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 UPON REMOVAL OF RBL 45 LONGITUDINAL BEAM, FUEL CELL UPPER SKIN TO BE CORRODED AT BS 865 TO 870, RBL 45 WL 178. BLENDED OUT CORROSION AND REPAIRED DOUBLER PER EO B727-5730-7514-A.