What was found
EMERGENCY ACTION TAKEN DURING FLIGHT DUE TO A COMPONENT OR SYSTEM MALFUNCTION. AFTER DUAL ENGINE REPLACEMENT DUE TO MPI, ON TEST FLIGHT, CREW DISCOVERED DUAL FUEL OVERTEMP ANNUNCIATOR LIGHTS CAME ON. CREW DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE WHERE THEY MADE AN UNEVENTFUL LANDING. FOUND BOTH ENGINES FUEL PUMPS BD. PN 307085057. NR 1 ENGINE FUEL PUMP; SN OFF MX378833, SN ON MX413446. NR 2 ENGINE FUEL PUMP; SN OFF MX445829, SN ON MX429061. ENGINE MODEL; TFE 731. NO VISIBLE DEFECTS WERE NOTED. FUEL PUMPS REMOVED WERE EXPECTED TO BE RETURNED TO MFG FOR TEARDOWN ANALYSIS. BOTH ENGINE FUEL PUMPS WERE REPLACED WITH OVERHAULED UNITS. NEW FUEL FILTERS INSTALLED. MAINTENANCE PROVIDER ACCOMPLISHED GROUND RUNS AND LEAK CHECKS IWTH ALL RESULTS SATISFACTORY. TEST FLIGHT ACCOMPLISHED WITH NO DEFECTS. (K)