Archives: Service bulletins

All Service bulletins

Relocation – Oil Pressure Sender P/N 5654912 and Fuel Pressure sender P/N 5654913

Inspection – P/N HS1446-10-68 Bolt, Lead Lag and Flapping Hinge

Inspection – Main Rotor Lead-lag and Flapping Hinge Bolts P/N HS1446-10-68

Inspection – Idler Pulley Assembly, Axial Play

Periodic and Conditional Inspection – Main Rotor Mast Assembly P/N 269A2020

Installation – Improved Fuel Injector Assembly

Inspection, Corrosion Damage – Main Rotor Driveshaft P/N 269A5305-3

Inspection – Tail Rotor Transmission Assembly P/N 269A6027 or 369A5400 Addendum dated – 10/27/1969.

Control Cover – Bonding, Upper and Lower

Retirement – Bellcrank Assembly, Lateral Pitch Mixer Idler P/N 269A7506