As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FIRE BOTTLE DISCHARGED. FIRE BOTTLE ACCIDENTALLY DISCHARGED WHILE REPLACING APU FIRE LOOP. NEED FIRE BOTTLE AND SQUIBS REPLACED. NOT AVAILABLE AT LAX. APU IS INOP. REPLACED APU FIRE BOTTLE AND SQUIB PER AMM, OPS CHECKS OKAY FOR SERVICE.