As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN REFERENCE TO ELECTRICAL LOAD DISTRIBUTION, DC POWER LEFT WIRING DIAGRAM MANUAL ATA 24-61-02, WIRE NR A2-4-P170-J WAS CONNECTED TO TERMINAL NR 5 INSTEAD OF TERMINAL NR 1. IN THIS SITUATION THE LEFT GENERATOR WAS HARD TO COME ON LINE AFTER ENGINE START. THIS OCCURRED ONLY AFTER A BATTERY START WITHOUT GROUND POWER.