As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REMOVED FIRE BOTTLE AND SENT TO REPAIR STATION FOR HYDROSTATIC RETEST,FILL AND LEAK CHECK. UPON RETURN OF BOTTLE REINSTALLED AND PERFORMED INSTALLATION TEST PER BOEING CARD NO.26-350-00-00 OPS CHECK GOOD. APPROXIMATELY ONE WEEK LATER NOTICED CARGO FIRE BOTTLE DISCHARGE LIGHT ILLUMINATED. INSPECTION OF BOTTLE SHOWED CONTENTS OF BOTTLE HAD NOT BEEN DISCHARGED. THIS PROBLEM WAS NOTICED ON TWO OTHER AIRCRAFT.