What was found
AFTER DEPARTURE NR 1 ENG BEGAN TO ROLL BACK THUR RECOVERY & CONTINUED TO FLUCTUATE. FUEL FLOW & ENG FLUCTUATIONS CONTINUED UNTIL LANDING WITH AT LEAST 2 ROLL BACKS TO IDLE. DECLARED AN EMERGENCY & DIVERTED. ACFT LANDED W/O INCIDENT. REPLACED NR 1 ENG FUEL PUMP, MEC, PMC & N2 ALTERNATOR. ENG OPS & LEAK CHECK GOOD. ALL PARAMETERS WITHIN LIMITS. PERFORMED A/T PLA SYNCHRO ADJ/TEST & A/T BITE TEST, NO FAULTS FOUND. PULLED MAGNETIC CHIP DETECTORS, NO DEFECTS NOTED. CHECKED CIT SENSOR TUBING & SENSOR, NO DEFECTS NOTED. PERFORMED OVERWEIGHT LANDING INSPECTION, NO DEFECTS NOTED. PERFORMED TEST FLIGHT. NO DISCREPANCIES NOTED. PERFORMED POST TEST FLIGHT WALKAROUND. NO DISCREPANCIES NOTED.