What was found
INSTRUMENT AIR FILTER ATTACHING SCREW CORRODED AND CAUSES METAL DEBRIS TO ENTER VACUUM SYSTEM UNFILTERED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
INSTRUMENT AIR FILTER ATTACHING SCREW CORRODED AND CAUSES METAL DEBRIS TO ENTER VACUUM SYSTEM UNFILTERED.