As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER START THE NR 1 ENGINE GENERATOR WOULD NOT GO ONLINE. DURING 1ST ATTEMPT THE VOLTS AND FREQUENCY WAS NORMAL. ON 2ND ATTEMPT TO CONNECT THE GENERATOR IT SHOWED 0 VOLTS AND FREQUENCY. PERFORMED GENERATOR CONTROL UNIT BITE PROCEDURE PER FIM TASK 24 21 00 810 801. FOUND GCB/APB FAULT PERFORMED FIM TASK 24 21 00 810 807. RAN NR 1 ENG IDG OP'S CHECK GOOD NO MAINT MESSAGE NOTED. ITEM WAS INTERMITTENT FAULT A/C OK FOR SERVICE.