Archives: Service bulletins

All Service bulletins

Field Modification – Idler Pulley Assembly P/N 269A5514

Replacement – Idler Pulley Bearings, P/N 269A5050-62

Kit – Floor Beam Reinforcement

Runout (TIR) Inspection – Main Rotor Thrust Bearing P/N 269A5050-73

Relocation – Warning Indicator Light, Searchlight Control Handle

Main Rotor Transmission Modification Kit No. M10062

Installation – Mounting Brackets Dual Head Alternator

Inspection – Main Rotor Hub and Shaft Assemblies P/N 269A5305 and 269A5305-9

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

Control Cover – Bonding, Upper and Lower