What was found
DURING HEAVY MAINTENANCE, (DURING) DVI OF FUS. FLOOR STRUCTURE BTW FR 66-68 CORROSION DAMAGE WAS FOUND AT AFT PAX DOOR SILL BEAM UPPER FLANGE IN THE AREA OF TRAY WEB ATTACHMENT FR68 R/H; REPAIR AT AFT PAX DOOR SILL BEAM UPPER FLANGE IN THE AREA OF THE TRAY WEB ATTACHMENT FR68 R/H, PERFORMED AS PER SRM TASK 53-41-14-300-001, REPAIR PRINCIPAL 5, REV. 129, ALL WORK ACCOMPLISHED ON LUFTHANSA TECHNIK NR 5000932174-0010 W/O 5200000666. THIS REPAIR IS CLASSIFIED AS MAJOR.