As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 110 - DEN-COS - ON APPROACH, THE CAPTAIN REPORTED THE RIGHT PORP APPEARED TO FEATHER BRIEFLY. THE AIRCRAFT WAS FERRIED TO FMN, WHERE MAINTENANCE TROUBLESHOT AND REMOVED AND REPLACED THE RIGHT ENGINE LOW PRESSURE AUTOFEATHER SWITCH AND THE LEFT ENGINE HIGH PRESSURE AUTOFEATHER SWITCH. OPS CHECK GOOD. THE AIRCRAFT RETURNED TO SERVICE. (M)