Service Letters

Facet Scavenge Oil Filter Kit PN 1741050 (369H Series 369D and 369E) and PN 1741300 (369F AND FF)


Federal Investigation of Central Aviation and Marine Corporation (CAMCO)


FIELD REPLACEMENT OF O RING FOR PN 369A8321 OIL TANK FILLER CAP


Ground Testing – Engine Automatic Re-ignition and Engine Anti-Ice Fuel Filter System


Handling and Shipping Gyros


HELICOPTER OPERATION IN VOLCANIC ASH ATMOSPHERE


Identification Plates – PN 369A5351 Overrunning Clutch Housing and PN 369A54350-11 Overrunning Clutch Sub-assembly


Illustrated Parts Breakdown of Ground Handling Wheel Assemblies (PN 369D26 10)


Improved Engine Air Filter Assembly for Particle Separator Filter Kit


Improved Fuel Drain Valve Assembly


Improved Strength PC Filter Housing – Allison Bulletin

Improved Window Glass Retention for Pilot and Passenger Door Assemblies


Increased Time Between Overhaul Period on OH-6A Main Rotor Hubs and 369A5400-700 Tail Rotor Transmission Utilization


Inflatable Floats – Service Maintenance and Repair Facilities


Inspection of Nickel-Cadmium Batteries – FAA Airworthiness Directive Note 72-21-5


INSPECTION OF THE TAIL ROTOR STOP


Installation of Steel Washers – Driven Pulley Belt-Driven Oil Cooler Blower Assembly


Installation of Surplus Military Parts or Salvaged Used Parts on Model 500 Helicopters


Interchangeability of tabbed Main Rotor Blades (PN 369A1100-501) With Untabbed Main Rotor Blades


Interim Restriction of N2 Operating Speed