As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - FLT 226 - AIR TURN-BACK. CREW REPORTED NR 2 ENGINE OVERTEMP ON TAKEOFF, AND UNABLE TO MAINTAIN CLIMB POWER. HAD 4 KNOB THROTTLE SPLIT. ACFT RETURNED TO PHX FOR MX TROUBLESHOOTING. MX PERFORMED PART POWER RIG AND POWER ASSURANCE TEST ON BOTH ENGINES. BOTH ENGINE PARAMETERS WITHIN MM LIMITS. ACFT RELEASED FOR SERVICE. (X)