As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER APU SHUTDOWN, FLAMES WERE NOTICED COMING FROM LOWER LT ENGINE NACELLE. INSPECTED AREA AND FOUND BURN ON LOWER COWLING. FOUND GENERATOR DAMAGED, APPEARS TO HAVE CAUGHT FIRE. R & R THE LEFT STARTER GENERATOR IAW MM 80-10-00. OPS CHECKED GOOD.