As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR - FLT 4023 - CREW REPORTED AFTER TAKEOFF, THE RIGHT ENGINE WOULD NOT MAKE POWER. THE CREW ALSO REPORTED DURING THE AIR RETURN, THE ENGINE PERFORMED AN UNCOMMANDED AUTO SHUT DOWN. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED THE ENGINE AND FOUND THE COMPRESSOR VARIABLE VANE TORQUE TUBE BROKEN. THE RIGHT ENGINE WAS REMOVED AND REPLACED IAW CONTINENTAL EXPRESS TASK CARD NR 6271001. (X)