As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REPLACE APU CONTROLLER FOR TROUBLESHOOTING. REPLACED APU CONTROLLER FOR TROUBLESHOOTING. FOUND STARTER CLUTCH FAILURE. INSPECTED MAG PLUGS AND REPLACED LUBE PRESSURE AND SCAVENGE FILTERS, NO METAL NOTED. REPLACED STARTER CLUTCH & REPLACED STARTER. OPS AND LEAK CHECKS OKAY.