What was found
AFTER TAKEOFF, ZNS ON NR 2 GENERATOR WITH LEFT EMERGENCY BUS POWER FAIL LIGHT ON. PERFORMED ABNORMAL CHECKLIST TO NO AVAIL; PERFORMED FUEL DUMP AS PER CHECKLIST. TRANSFERRED TO DMI 19258 AS PER MEL 24-1 CAT-C (ON T/S FOUND NR 2 GENERATOR CAUSING FAIL ZNS). OPENED PYLON PANELS, TROUBLESHOT NR 2 GEN. WIRES, FOUND OPEN; REPAIRED AS PER M/M 24-00-01, OPS CHECK GOOD; CLOSED PYLON PANELS IAW M/M 71-00 AND SRM 51-3-0. CLEARED DMI NR 19258.