What was found
ATTEMPT APU START AIRBORNE, RECEIVED APU FIRE MESSAGE AND AURAL, THEN FIRE FAIL (APU). REMOVED AND REPLACED FIRE CONTROL UNIT IAW 26-00-00. OPERATIONAL CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ATTEMPT APU START AIRBORNE, RECEIVED APU FIRE MESSAGE AND AURAL, THEN FIRE FAIL (APU). REMOVED AND REPLACED FIRE CONTROL UNIT IAW 26-00-00. OPERATIONAL CHECK GOOD.