What was found
CLIMB-OUT OF FMN AT 1500 FEET, RIGHT ENGINE TORQUE SURGED FROM 500 TO 800 LBS. FEATHERED RIGHT ENGINE, RETURNED TO GATE AND NO FURTHER INCIDENT. COULD NOT DUPLICATE ON THE GROUND, SWAPPED TORQUE GAUGES AND PERFORMED TEST FLIGHT. TEST FLIGHT WAS SATISFACTORY AND AIRCRAFT WAS RELEASED FOR SERVICE. (M)