What was found
FLT 4008 - SHORTLY AFTER TAKEOFF AT APPROXIMATELY 12,000 FEET MGL, RIGHT ENGINE BEGAN TO SURGE (ALL PARAMETERS). CREW ELECTED TO SHUT DOWN RIGHT ENGINE AND RETURN TO FIELD. AN EMERGENCY WAS DECLARED. THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. OUT-STATION MAINTENANCE REMOVED, CLEANED, AND RE-INSTALLED ENGINE ELECTRICAL HARNESS CANNON CONNECTORS FROM THE FOLLOWING ENGINE SENSORS, ECU, NP, NH AND TQ IAW MM 71-10-00. ENGINE GROUND RUNS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.