What was found
BAG SMOKE EICAS MESSAGE DISPLAYED WITH BAGGEXTG BUTTON ILLUMINATED IN FLT. BAG BAY SHOWS NO SIGN OF FIRE. EXTG BUTTON WAS PUSHED. MEL 21FEB24 11:27 SDF C05205 26-8 BAGGAGE COMPARTMENT FIRE EXTINGUISHER. FACT 21FEB24 18:15 PHL R+R BOTH BAGGAGE HIGH RATE AND METERING BOTTLES IAW AMM 26-23-01. OPS CHECK GOOD. OK FOR SERVICE AT THIS TIME. CLEAR MEL 26-8. MDIS 641 26-15 3048091 22FEB24 PHL CLOSE PREF LP 304808-1. PER MOCC INSPECT FORE AND AFT BAGGAGE SMOKE DETECTORS FOR OBVIOUS DEFECTS/DAMAGE. REPAIR.REPLACE AS NEEDED FACT 22FEB24 16:14 PHL INSPECTED BOTH SMOKE DETECTORS, NO OBVIOUS DEFECTS NOTED. REMOVED AND REPLACED AFT SMOKE DETECTOR AS A MAINTENANCE PRECAUTION IN REF TO AMM 26-15-01, OPS CHECK GOOD IN REF TO AMM 26-15-00. AIRCRAFT OK FOR SERVICE.