As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON TO AF SELECT DID NOT ARM. TAKEOFF ABORTED. AS INSTRUCTED BY MTX CONTROL ACCOMPLISHED AF TEST NR 1 ORIO AF TEST FAILED. REMOVED AIRCRAFT FROM SERVICE. CYCLED POWER ON AIRCRAFT PERFORMED OPS CHECK PROCEDURE. PROP AUTOFEATHER SYSTEM IAW AMM 61-20-00-710-805. AUTOFEATHER SYSTEM PASS WITH NO DEFECTS NOTED. CREW ALSO PERFORMED GROUND RUN AND AUTOFEATHER SYSTEM PASS WITH NO DEFECTS . COULD NOT DUPLICATE. RETURNED TO SERVICE. NO PARTS REPLACED.