As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DUE TO PREVIOUS PDIS LEVEL 3 ALERT "CARGO FIRE LWR FWD". COMPLIED WITH QRH AND DISCHARGED AGENT- R & R 4EA COMPARTMENT SMOKE DETECTORS PRECAUTIONARY. PARTS ON R & R LWR CARGO BAY NR 1 FIRE BOTTLE. IAW MM 26-22-01-4-1 STEPS 1 THRU 2E4. R & R BOTTLE AND SQUIB.