As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN CONDUCTING AN EMERGENCY POWER CHECK THE AC VOLT METER WENT FULL DEFLECTION TO 130 VOLTS. NR 1 AND 2 AUTO TRANFORMER C/B POPPED AND CADC AC AND 26 VAC C/B'S POPPED. SHOP REPORT CONFIRMED THE FAULT THAT THE INVERTER WAS PUTTING OUT 155 VAC. THIS WAS BELIEVED TO BE DUE TO POOR SOLDER CONNECTIONS WITHIN THE INTERNAL CIRCUIT BOARDS.