What was found
DURING FLIGHT PLS/JFK, LEFT DUMP NOZZLE VALVE CAME ON INTERMITTENTLY. DEACTIVATED LEFT FUEL NOZZLE DUMP VALVE CLOSED AND SAFETIED IAW MEL 28-9, TRANSFERRED TO DMI SLIP 1226. NO POWER TO PIN B AT CANNON PLUG. OPENED WING PANELS FOR INSPECTION. FOUND BURNED WIRES AT WING STATION 546. REPAIRED WIRES AS REQUIRED FOR LEFT FUEL SHUTOFF VALVE IAW B727 SWPM REF 20-10-13. OPS CHECK NORMAL. CLEARED DMO. (M)