Archives: Service bulletins

All Service bulletins

Inspection of Clutch Cable Assembly and Termal End (P/N AN669L3RH or MS21260L3RH)

Inspection and Rework of LTS Tail Rotor Hub P/N 369A1725, -5 and -501

Rework of Main Rotor Mast Assembly for Improved Corrosion Protection

Operational Check – Fuel Low Warning System

Corrosion Inspection – Transmission Oil Pressure Switch P/N 269A4576

Periodic Check and Initial Replacement – Belt Drive Pulley H-Frame Tie Bar Bracket Assembly, PN 269A5517-7

Bungee Installation Kit P/N M10123 – Collective Pitch Stick

One-time Inspection of main Rotor Hubs and Shafts; P/N 269A5305 and -9

One-time Inspection and Rework of P/N 269A4262 Inertia Reel Shoulder Harness Assemblies and Installation

Conversion of 12V to 24V Electrical System – Modification Kit No. M10068 and Installation of 24V, 100 Ampere Capacity Alternator – Kit No. 269A4929-1