As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE FIRE EXTINGUISHER RECEIVED EMPTY FROM CUSTOMER FOR INVESTIGATION AS TO CAUSE OF DEPLETION. INSPECTION OF THE BOTTLE CONFIRMED THAT UNIT EMPTY BUT HAD NOT BEEN ACTIVATED. FOUND EXTINGUISHER LEAKING THROUGH THE TCPS VENT HOLE. EXTINGUISHER MANUFACTURED IN 1985, AND HAD BEEN HYDROSTATICALLY TESTED TWICE SINCE.