As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) RECERTIFICATION OF PITOT AND STATIC SYS, AN ABNORMAL LEAK WAS FOUND, ON CLOSE INSPECTION THE ALUMINUM LINE BETWEEN PITOT TUBE AND DRAIN COCK FOR THE PITOT SYSTEM WAS FOUND TO HAVE A PIN HOLE DUE TO BUILD UP OF FIRE RETARDANT THAT CAUSED CORROSION TO SET.