What was found
AT CRUISE, PILOT NOTICED SLOWER THAN NORMAL OPERATING SPEED WHICH COULD NOT BE INCREASED BY ADVANCING THE THROTTLE. FUEL FLOW CONTINUED TO DECREASE WITHOUT THROTTLE MOVEMENT. EMERGENCY LANDING WAS PERFORMED WITHOUT INCIDENT. AFTER LANDING ENGIN CONTINUED TO RUN PROVIDING ENOUGH POWER TO TAXI TO RAMP TIE-DOWN AREA WHERE NORMAL SHUT DOWN PROCEDURE WAS INITIATED. TEAR DOWN INSP OF ENGINE DRIVEN FUEL PUMP REVEALED CONTAMINATION IN VAPOR SEPARATOR HOUSING AND JET, CAUSING A PARTIAL BLOCKAGE WHICH IS CONSISTENT WITH OPERATOR SCENARIO OF REDUCING FUEL FLOW AND POWER LOSS. (K)