Archives: Service Letter

All Service Letter

Periodic Cleaning and Lubrication of Sealed Bearing – Upper Pulley, Lower Coupling Drive Pulley, Idler Pulley and Main Rotor Drive Shaft Thruster Bearing

New PN 269A8251 Heat Insulation Kit for Model 269C Engine Exhaust System

New Conical Type Teeter Bearings for LTS Tail Rotor Assembly

Main Transmission – Ring , Pinion Gear Compatib i lity

Bendix Fuel Injection System Flow Divider Installation on HiO-360 Series Engine – Inspection/Modification

Replacement – 24V Clutch Actuator Noise Filter Capacitors

Replacement – Tail Rotor Control Pedal Retaining Pins

Inflatable Floats – Service , Maintenance and Repair Facilities

New Aluminum Isolator Brackets for Mounting Engine Cooling Scroll Reduce Stress Levels in Engine Hanger Assemblies

Exchange Program – Major Helicopter Componen t s