Service Bulletins

Inspection and Overhaul of Fuel Shutoff Valve (PN 369A8104-5)


INSPECTION AND POSSIBLE RETIREMENT – MAIN ROTOR BLADE PN369A1100-501


Inspection and Relocation of Fuel Filter Pressure Switch PN 369H8144


Inspection and Repair – Adjustable Upper Engine Mount Assemblies PN 369H8016-1 and -2


Inspection and Repair – Tail Control Station 142.00 Bellcrank Support PN 369A3035-11 and 369A3035-15


Inspection AND Repair -Aft Fuselage Skin Cracks


Inspection and Replacement of Tail Rotor Fork Bolt (369A1602)


Inspection and Rework of Fuel Vent System


Inspection and Rework of Tail Rotor Hub PN 369A1725-Basic and 369A1725-5


INSPECTION AND SHIMMING – CABIN HEATER CONTROL VALVE ASSEMBLY


Inspection and Torque Requirements for Scroll Mounted Bleed Air Fittings


Inspection of 369A5352 Outer Race of Overrunning Clutch Assembly PN 369A5350


Inspection of Lead-Lag Link Attach Nuts


Inspection of Main Rotor Blade Root Fitting Assemblies – Inspection of Main Rotor Hub Lead-Lag Link Assemblies


Inspection of Main Rotor Blade Root Fitting Assemblies -Inspection of Main Rotor Hub Lead-Lag Assemblies


Inspection of Overrunning Clutch Outer Race – 3695352 Overrunning Clutch Assy.


Inspection of Overrunning Clutch Sprag Assembly


Inspection of PN 369A1200 Series Main Rotor Hub Assembly; Inspection of PN 369A1220 Main Rotor Blade Lead-Lag Pivot Bolt (Vertical Hinge Pin)


Inspection of PN 369A2001-601 – Shock-Mounted Stabilizer Strut Assembly and Possible Replacement of 369A2130 Damper Plunger


Inspection of PN 369A2515-3 Frame and Battery