As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU MAINT LIGHT ILLUMINATED WHILE PUSHING. AFTER ENG START AND APU WAS SHUTDOWN THE FAULT LIGHT ILLUMINATED FOR 5 MINS AND THEN EXTINGUISHED. ACCOMPLISHED FIM 49-40 TASK 806. STARTER-GENERATOR FAILS IAW SAME. REPLACED THE APU STARTER-GENERATOR REF AMM 49-41-21.