Service Letter 服务信函

01/08/1968 Lear Siegler Starter/Generator - Model 23046 Series
01/08/1968 Recommended Overhaul Periods for LYCOMING Engines
01/04/1969 Introduction of Torque Computer and new Pilots Check List
01/06/1969 HARTZELL Propeller - Recommended TBO
01/08/1970 Elevator Trim System
01/10/1970 WOODWARD Service Bulletin No. 33532B, UACL Service Bulletin No. 198
01/12/1970 Fairing Strips - Fuselage to Wing
01/03/1971 SONOTONE Model MA-5 Battery
01/05/1971 Fuel Starvation, Resulting From Prolonged Parking of Aircraft in a Wing Low Attitude
01/05/1971 Weight Bearing Limitation of Aircraft Lifting Sling (Pilatus Part Number 6990.18) and Aircraft Lifting Points on Porter PC-6 Series Aircraft
01/05/1971 Tail Wheel Debris Guard - P/N 112.35.06.213
01/07/1971 DE LUXE Cabin Ventilating System - P/N 112.55.06.106
01/07/1971 Fuel Measuring Dip Stick
01/07/1971 Technical Publications
01/07/1971 LEAR SEIGLER Service Bulletin No. 101. SB 004
01/12/1971 Approach Procedure - Use Of Beta Control
01/04/1972 Adjustable Pilot Seat - P/N 112.50.06.482
01/12/1971 Propeller TBO (Hartzell SL No.61)
01/12/1971 Torque Computer PT6A-20
01/01/1973 Fuel Additive Against Microbial Contamination
01/01/1973 HARTZELL Propeller (HARTZELL Service Letter No. 72)
01/05/1973 Removal of Gust Locks Before Flight
01/01/1974 Autopilot P/N 600.47999.00
01/04/1974 Condition Trend Monitoring PT6 Eng.
01/08/1974 HARTZELL Service Bulletin No.105
01/03/1975 UACL Service Bulletin No.1217
01/08/1976 Introduction of New Aileron Gust Locks - Superseded by SB 137
01/03/1986 Lubrication of Landing Flap Control Sprocket - P/N 6232.0173.00
01/09/1976 GOODYEAR Service Letter GS-SL-4
01/09/1976 Propeller Lock on Ground
01/12/1977 Drain Fuel Collecting Bottle
01/12/1977 Service Ladder - "Land" Version
01/12/1977 Shoulder Harness - P/N 112.50.06.500
01/06/1979 Starter Pilot Light