As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LANDING, AND ON APU START, A MAINT LIGHT FOLLOWED BY A FAULT LIGHT AFTER IT WAS SHUTDOWN. ACFT GROUNDED. REMOVED AND REPLACED THE APU STARTER GENERATOR IAW AMM 49-41-21-400-801. OPS AND LEAK CHECKED GOOD. NO FURTHER FAULTS OR DEFECTS NOTED. GROUND VERIFICATION NORMAL.