As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN THE FIRE BOTTLE WAS REMOVED FOR REPLACEMENT, IT WAS FOUND THAT THE SHORTING SPRING WAS LEFT INSERTED IN THE CONNECTOR WHEN THE BOTTLE WAS INSTALLED. THIS SPRING COULD HAVE PREVENTED THE PROPER FIRING OF THE BOTTLE HAD THE NEED AROSE FOR IT. INSPECTION OF THE OTHER FIRE BOTTLE CONNECTOR. NO FAULTS FOUND. NOTE: THE AMM TASK DOES NOT SPECIFY TO REMOVE THE SHORTING SPRING BEFORE INSTALLING ON AIRCRAFT.