What was found
DURING PREFLIGHT CHECKS THE CREW ATTEMPTED TO START THE APU, BUT THEY REPORTED THAT IT FAILED TO START. TROUBLESHOOTING DETERMINED THAT THE STARTER & GENERATOR DRIVE ADAPTER WAS BROKEN, PN 3861055-1. OPERATIONS CHECKED OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING PREFLIGHT CHECKS THE CREW ATTEMPTED TO START THE APU, BUT THEY REPORTED THAT IT FAILED TO START. TROUBLESHOOTING DETERMINED THAT THE STARTER & GENERATOR DRIVE ADAPTER WAS BROKEN, PN 3861055-1. OPERATIONS CHECKED OK.