Technical Bulletins

Installation and Replacement of Protective sleeve (Speedi-Sleeve PN 084956) on Tail Rotor Transmission Output Gearshaft


Installation of Anti-Ice Fuel Filter PN 369H90022-501


Installation of Auxiliary Drain Valve, Fuel System Installation PN 369H92255 Drain Kit


Installation of Cabin Heat Duct (Fiberglass) Assemblies PN 369D22099-101


Installation of Engine Air Inlet Deflector Kit PN M30287-501


Installation of Heater System Muffler Assembly


Installation of Oil Tank Filler Nozzle Strainer Assembly PN 369D28318


Installation of PN 3569H4237-21 Resistor Board Assembly for Easier Accurate Adjustment of TOT Indicator


Installation of SCR Assembly – Auto-Re-ignition Modification Kit PN M50036


Installation of Voltage Transient Suppressors