As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NEW AIR BOX ASSEMBLIES LISTED WERE RECEIVED DEFECTIVE. 'NEW PARTS FROM BEECH'. THE AIR FILTER SLOT IS NOT WIDE ENOUGH TO ACCOMODATE THE SUPPLIED AIR FILTER. SECOND, THE ALTERNATE AIR DOOR DOES NOT CLOSE COMPLETELY. SUBMITTER STATED POOR QC ON BOTH ASSEMBLIES.