As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH, THE ENG STARTED SURGING. THE TORQUE & FUEL FLOW INDICATORS WERE FLUCTUATING SEVERELY. THE ACFT WAS APPROX 6 MIN NORTH OF THE AIRPORT. THE PILOT DECLARED AN EMER & THE ACFT LANDED SAFELY. MAINTENANCE REPLACED THE FUEL PUMP & FUEL CONTROL UNIT IAW MM 73-20-00 & 73-10-02. LEAK AND OPS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.