Product Support Engineering：

Alert Service Bulletins (ASB)
Technical Bulletins (TB)
Operational Safety Notices (OSN)
General Operational Safety Notices (OSN GEN)
Information Letters (IL)
General Information Letters (IL GEN)

FLIGHT MANUAL (FM)

The Flight Manual provides data pertaining to General Information, Limitations, Normal Procedures, Emergency Procedures, Performance, Weight and Balance and Optional Equipment.

In conjunction with this information, Flight Manual Supplements (FMS) are provided to cover the applicable operating procedures of the various Bell Helicopter approved kit and customizing installations. The information contained in the Flight Manual Supplements is provided to supplement the information which is contained in the basic Flight Manual. Only those Flight Manual Supplements which are associated with kits or customizing that are installed on the specific helicopter need to be part it's Flight Manual.