What was found
1) #1 ENGINE GROUND FAULT LIGHT ILLUMINATED 45 MIN. AFTER POWER ON. TROUBLESHOT SYSTEM - WITH FORWARD CONNECTOR REMOVED LIGHT STILL REMAINS ON - REINSTALLED CONNECTOR - PROBLEM IS WITH WIRING TO CONNECTOR.2) DEFERRED PER MEL 26-9-1 CAT. "C". DMI #11339 PLACARD INSTALLED. REMOVED AND REPLACED "OPERATING POWER UNIT", NO HELP.3) REF.: DMI #11339, #1 ENGINE GROUND FAULT LIGHT ILLUMINATED 45 MIN. AFTER POWER ON. TROUBLESHOT SYSTEM WITH FORWARD CONNECTOR REMOVED. LIGHT REMAINS ON. REINSTALLED CONNECTOR. REMOVED AND REPLACED "OPERATING POWER UNIT", NO HELP. PROBLEM IS IN WIRING.4) REPINED FORWARD FIRE LOOP CONNECTOR PER M/M 20-11-0. OPS CHECKED GOOD PER M/M 26-11-001. THIS CLEARS DMI #11339. PLACARD