As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASH 6259 PHX. A/F WILL NOT ARM. MX RESET THE SYSTEM AND PERFORMED ENGINE RUN CHECKS AND THE SYSTEM CHECKED GOOD. THE AIRCRAFT THEN RTG A SECOND TIME FOR SAME PROBLEM. MX ADJUSTED THE AUTOFEATHER ARMING POT, REMOVED AND REPLACED K5 RELAY.