Maintenance Planning Information

Airworthiness Limitations

The manufacturer gives the following components of main rotor hub assembly a limited airworthiness life.

Component	Part Number (1)	Airworthiness Life
Main Rotor Blade	206-015-001-119	4000 hours
Main Rotor Grip	206-011-132-113	4800 hours
Latch Bolt	206-011-260-101	1200 hours
Main Rotor Retention Strap	206-310-004-103	1200 hours or 48 months (2)
Retention Strap Fitting	SLS-010-150-101	2400 hours
Retention Strap Pin	206-011-125-001	1200 hours
Main Rotor Trunnion	206-011-120-105	24000 RIN (3)

1. Airworthiness limitation for part number listed applies to all successive dash numbers for that component unless otherwise specified.

2. Main rotor hub tension torsion straps have an airworthiness life of 1200 hours or 48 months, whichever occurs first. The calendar life of 48 months starts when new straps are installed in a main rotor hub and blade assembly, and are subjected to rotation on the helicopter.

3. Retire the main rotor trunnion when the RIN = 24000. For each takeoff/lift, add two to the RIN total.

Component Restoration (Overhaul) Schedule

The manufacturer recommends to preform a restoration (overhaul) of the main rotor hub ever 2400 flight hours.