What was found
ON AFTER START FLOW GEN 1 WOULD NOT COME ONLINE SOURCE OFF AND GEN OFF BUS LIGHT REMAINED ILLUMINATED VOLTS AND FREQ BOTH AT 0. GROUNDED - YES. PERFORMED FIM 24-21 TASK 801, FOUND FEEDER FAULT ON THE NR 1 GCU, CHECKED AND RELEASED PER MEL 24-1B ENGINE DRIVEN GENERATOR SYSTEM. REMOVED AND REPLACED #1 IDG PER AMM 24-11-11-000-801 AND AMM 24-11-11-400-801. OP CHECK LEAK CHECK GOOD. SERVICE CHECK GOOD PER AMM 71-00-00-800-811-F00. AND AMM 24-11-11-080-801 AND CAUSE INSPECTION REF AMM 24-11-11-080-801 AND NO FILTER CONTAMINATION FOUND. THIS CLEARS MEL 24-1B.