What was found
DURING HEAVY CHECK, FOUND FUEL TUBES AND CLAMPS DETERIORATED AT PANELS 531BB. MAINTENANCE R & R FUEL TUBE PN 170-06039-401 AND CLAMP IAW AMM 20-10-13. REFUEL AND DEFUEL OPS CHECK TO BE DONE VP-036176-2013/648, PN 170-06039-401. ACFT REMAINS UNTIL HEAVY CHECK COMPLETION.