Archives: Service bulletins

All Service bulletins

Retrofit – Alternate Battery Location

Inspection – Main Rotor Blade Flapping Hinge Bearing

Rework Electrical Components – Radio Noise Level Control

Kit Installation – Utility Lights

Retrofit – Dual Clutch Spring Attachment Fitting P/N 269A5436-5 and 269A5436-7 Addendum dated – 04/23/1968

AC Engine Mounted Full – Flow Oil Filter – Installation

Tail Rotor Repair – Erosion, Blade Leading Edge

Installation – Jumper Wires

Field Modification – Induction System Air Filter Housing P/N 8143

Tape Application Area – Tail Rotor Blades