As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 853 DTW-RSW SHIP 641. FIRE RESCUE RESPONDED TO AIRCRAFT DUE FORWARD CARGO FIRE WARNING. FIRE BOTTLES USED. FIRE DEPT HAS INSPECTED AND FOUND NO INDICATION OF FIRE. MAINTENANCE FOUND PRESSURE SWITCH ON BOTTLE & TESTED GOOD. 1 FIRE BOTTLE DID NOT DISCHARGE. WEIGHTED BOTTLE & WAS IN LIMITS. REPLACED FIRE OVERHEAT LOGIC TEST CARD AS PRECAUTION. BOTTLE WAS REMOVED & CONVERTED CONFIGURATION TO INSTALL NEW FIRE BOTTLE IN POSITION NR 1 PER AMM 26-23-02. OPS CHECKS OK. A/C OK FOR SERVICE.