What was found
MAJOR REPAIR - DURING B-04 CHECK GALVANIC CORROSION WAS FOUND IN LAVATORY MOUNT HOLE ON BEAM Y765 LT, FORWARD OF FR 66. MAINTENANCE REMOVED CORRODED SECTION OF BEAM Y765 LT FROM FR 64 TO FR 66; FABRICATED NEW REPLACEMENT SECTION OF BEAM, INSTALLED REPAIR PART IAW A319 SRM 51-42-11, FIG. 18.