As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU WILL NOT START NO ROTATION. FOUND STARTER ON FIRE, PUT FIRE OUT W/EXTINGUISHER. SUSPECT STARTER RELAY HUNG. R/R R2-63, R2-792 & SHIP BATTERIES. REPLACED STARTER NEG/POS HARNESS P/N 790793-9407-501. R/R APU. OPS CK GOOD. (LP# 5329530)