What was found
AIRCRAFT WAS RETURNING HOME FROM FLIGHT AND PILOT NOTICED THE PEDALS WERE NOT OPERATING NORMALLY. HE THEN BEGAN CIRCLING THE AIRPORT UNTIL WE DETERMINED THAT THE PROBLEM WAS A PARTIALLY LT STUCK TAIL ROTOR PEDAL, AT WHICH TIME HE DECLARED AN EMERGENCY AND LANDED THE AIRCRAFT WITH NO DAMAGE TO THE AIRCRAFT. UPON INSPECTION, REMOVED THE T/R QUILL HOUSING AND FOUND THE SPLINE PORTION OF THE HOUSING STRIPED IN THE MIDDLE PORTION OF THE SPLINE. (K)