As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 239, BOS-AUS. CARGO BTL FAIL MESSAGE APPEARED ON AND OFF FOR ABOUT 45 MINUTES INFLIGHT. LAST 1.5 HOURS OF FLIGHT IT DID NOT COME BACK.( CARGO BAY FIRE EXTINGUISHER, LOW RATE DISCHARGE (LRD) 1 1) PRESSURE SWITCH ); R/R CARGO HRD BOTTLE IAW AMP 26-24-05, OPS CHK OK. THIS ACTION CLEARS MDDR 459325. MX-4 UPDATED. PLACARD REMOVED.