What was found
REPORTED THAT DURING THE POST FLIGHT CHECKS, THAT THEY WERE UNABLE TO EXHALE THROUGH THE PILOT'S OXYGEN MASK. THE DEFECTIVE MASK WAS R & R WITH AN OVERHAULED UNIT. OPERATIONS CHECKED OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
REPORTED THAT DURING THE POST FLIGHT CHECKS, THAT THEY WERE UNABLE TO EXHALE THROUGH THE PILOT'S OXYGEN MASK. THE DEFECTIVE MASK WAS R & R WITH AN OVERHAULED UNIT. OPERATIONS CHECKED OK.