What was found
WITH THE GEAR DOWN, FLAPS ZERO DEGREES, AIRSPEED 140 KNOTS, THROTTLES IN THE CLIMB DETENT, ALTITUDE BETWEEN 1300' TO 2000', WE HEARD AND FELT A LARGE BANG UNDER THE BELLY OF THE AIRCRAFT. OUR FIRST THOUGHT WAS A BIRDSTRIKE. ALL ENGINE INSTRUMENTATIONS ARE NORMAL, ALL FLIGHT CONTROL FUNCTIONS ARE NORMAL. POST INSPECTION FOUND NOTHING OUT OF NORMAL. BOTH ENGINES HAD TORQUE MOTOR FAULTS. INSPECTED AND PERFORMED CONTINUITY CHECKS TO THE WIRE HARDNESS FROM P1 RO P10. NO DEFECTS NOTED. RAN ENGINE AND PERFORMED HIGH POWER AND HAD A HARD FAIL EEC WENT INTO MANUAL MODE. FOUND TORQUE MOTOR INOPERATIVE. INSTALLED A NEW TORQUE MOTOR OPS CHECKED NORMAL IAW MM 75-30-01, REV 44.1.