What was found
APU FIRE INDICATION. APU EXTINGUISHER BOTTLES WERE DISCHARGED BY CREW. APU EXHAUST FIRE DETECTOR AND HARNESS SHORTED. REPLACED THE APU EXHAUST FIRE DETECTOR AND HARNESS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
APU FIRE INDICATION. APU EXTINGUISHER BOTTLES WERE DISCHARGED BY CREW. APU EXHAUST FIRE DETECTOR AND HARNESS SHORTED. REPLACED THE APU EXHAUST FIRE DETECTOR AND HARNESS.