As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR SHUTTLE 686 - COS-ABQ - 10 MINUTES PRIOR TO FINAL, ENGINE WENT TO FLIGHT IDLE. PROP WAS FEATHERED AND ENGINE WAS SHUTDOWN. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. REMOVED AND REPLACED CRACKED P3 LINE. AIRCRAFT POWER RUN UP WAS COMPLETED SUCCESSFULLY AND AIRCRAFT RETURNED TO SERVICE. (M)