Archives: Service Letter

All Service Letter

New Tailboom Assembly PN 269A2320 – 9

Distribution and Shipment of Schweizer – Hughes Model 300 Publications

New Wedge Base Lamp Socket PN 2973932 for Both Instrument Cluster Assemblies

New Comfort Clips for Sam Browne Seat Belt and Shoulder Harness Assemblies

Drive System Rotating Bearings – Daily Purge with Mobil 28 Grease

Installation of Engine Exhaust Collector Required for 2050 LB Gross Weight Helicopter Operation

Periodic Inspection and Replacemen t – Main Rotor Hub Attaching Bolts PN 269Al229 and 269Al232

Biannual Listing of Airworthiness Directives versus the Associated Hughes Service Information Notice

Main Transmission Input Pinion Shaft PN 269A5103 and -9 – Limited Life Increased to 6000 Hours

Aeroshell 14 Grease Only Approved Lubricant for Rotor System Oscillating Bearings