What was found
ASH FLT 2667 PHX-YUM. CREW REPORTED DURING CLIMB THE E1 THRUST LEVER JAMMED AT ABOUT THE 90 PERCENT MARK. CREW WAS UNABLE TO UNJAM THE LEVER AND ELECTED TO SHUT DOWN THE ENGINE VIA THE FIRE SYSTEM ARM PUSH BUTTON. CREW THEN ELECTED TO RETURN TO PHX. CREW DECLARED AN EMERGENCY, AIRCRAFT LANDED SAFELY AND TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. MX INSPECTED AND FOUND CORE COWL SUPPORT ROD INHIBITING FUEL CONTROL. ENG RUNS GOOD.