As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PORTABLE FIRE EXT NOZZLE WAS FOUND TO BE LOOSE AND BOTTLE COMPLETELY DISCHARGED. REMOVED NOZZLE FROM BOTTLE AND FOUND NOZZLE AND BOTTLE THREADS CORRODED. ALSO, NOZZLE TO BOTTLE O-RING SEAL DETERIORATED. POSSIBLE CAUSE OF DEFECT COULD BE IMPROPER TORQUE VALUE USED DURING BOTTLE ASSEMBLY.