As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND APU CONTROL MSG ON. MESSAGE STARTED HITTING AFTER SUCCESSFUL ALT START (19 OCT) AFTER APU INSTALLED. APUC REPLACED ON 20OCT, NR 2 SPEED SENSOR 24OCT & 29OCT & FINALLY NR 1 SPEED SENSOR 03NOV. CHECK MAT TO ENSURE LAST LATCHED STATUS MESSAGE WAS ERASED. PREV HIT: WIRE CHECK PER FIM 49-60 FOUND NO DAMAGE. INSTALLED APU. ALSO CHECKED CONNECTORS AND PINS AT FIRE WALL FOR APU ALL NORMAL.