As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINTENANCE MESSAGE 24-13063 POWER BUS AC GND SVCE SEC 1 BUS IN P320 IS NOT POWERED, PERFORMED A COMPLETE GROUND SERVICE BUSS TEST WITH NO ISSUES. PERFORMED TROUBLESHOOTING IAW FIM 2 4-51 TASK 805 REV 105 AND REPLACED WIRE W3241-0010-12 IAW SWP M 20-10-11 REV 90 & REPLACED TB 400 NR 1 TERMINAL BLOCK IAW SWPM 20-15-48 REV 90 & REPAIR CONFIRMATION FOUND MAT MAINTENANCE MESSAGE:24-13063 DISAPPEARED.