As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A SCHEDULED INSPECTION, MAINTENANCE DISCOVERED THAT THE DISCHARGE LINE FROM THE LEFT AND RIGHT FIRE BOTTLES WERE CONTAMINATED WITH WATER. THE SUBMITTER STATED THAT THE QUANTITY OF WATER IN THE LINE WOULD BE ENOUGH TO TOTALLY BLOCK THE LINE SHOULD THE WATER FREEZE. THE LINE WAS REMOVED FOR THIS INSPECTION 22 MONTHS PREVIOUS.