As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - AIR TURNBACK - 2/3/01 - DURING INITIAL CLIMB, LEFT ENG UNCOMMANDED THRUST INCREASE ABOVE CLIMB EPR LIMIT WITH DEFINITE YAW TO THE RIGHT; EVENT WAS MOMENTARY AND LEFT EPR WAS NOTICED DECREASING THRU 1.5 BACK TO CLIMB EPR OF 1.3, OTHER PARAMETERS NORMAL. AIRCRAFT RETURNED TO PHX WITH NO FURTHER EVENTS. CONTINUED ON SUP SDR AWXA0001282.