As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE APU WARNING MSG. DISCHARGED BOTTLE. REF WDM 26-15-11-1 INSPECTED AND FOUND W720-452-18R AND W720-451-18R SHORTED TO EACH OTHER UNDER CLAMP. REPAIRED WIRES PER SWPM 20-30-12. FIRE SYSTEM TEST PASSED FOR APU LOOPS A ND B PER AMM 26-15-00-735-009. </P>)