What was found
TORQUE SPLIT 20 PERCENT IN CRUISE FLIGHT SENT INTO MANUFACTURER FOR REPAIR. DISMANTLED AND COMPONENT EXAMINATION FOUND SERVO VALVE ORIFICES AND LEVER TO BE CONTAMINATED WITH OILY BROWN SOOT PAST. APPRECIABLE WEAR WAS EVIDENT ON THE SERVO VALVE LEVER AND ORIFICES. RECOMMENDED OVERHAUL BASED ON DEGREE OF REPAIRS REQUIRED TO RETURN SUBJCT TORQUE CONTROL TO A SERVICEABLE STATE. CUSTOMER WILL BE NOTIFIED OF THE INVESTIGATIVE FINDINGS ABOVE AND UPON ACCEPTANCE OF QUOTATION NECESSARY REPAIRS WILL BE PERFORMED