What was found
APU WOULD NOT START AND AUTOSHUTDOWN. WHEN TURNED BY HAND LOUD NOISE HEARD COMING FROM GEARBOX. REPLACED APU PER TRANSMITTAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
APU WOULD NOT START AND AUTOSHUTDOWN. WHEN TURNED BY HAND LOUD NOISE HEARD COMING FROM GEARBOX. REPLACED APU PER TRANSMITTAL.