As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE FROM HOU TO APA WHILE CRUISING AT 35,000 FEET, THE LEFT ENGINE ROLLED BACK TO FLIGHT IDLE WITH NO PILOT INPUT. THE ENGINE WAS SWITCHED TO MANUAL MODE AND OPERATION WAS RESTORED TO NORMAL. THE AIRCRAFT LANDED WITHOUT INCIDENT. THE ELECTRONIC ENGINE COMPUTER WAS CHANGED AND THE AIRCRAFT WAS RETURNED TO SERVICE.