As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OUTLET TUBE HAS BURRS ON INSIDE SURFACE FROM MACHINING OPERATION. BURRS ARE HAIR-LIKE AND EASILY DETACHED. FILTER INSPECTED PRIOR TO INSTALLATION AND NOT USED. BURR APPEARS TO HAVE BEEN CAUSED WHEN CUTTING TOOL WAS RETRACTED. TOOKMARK CONTAINING BURRS IS ON A WIDE-PITCH SPIRAL OF APPROXIMATELY .25 INCH PITCH.