Textron Bell 412 - PROPULSION AND DRIVE SYSTEM

FAA APPROVED BHT-412-MM-2
4-00-00
25 SEP 2018 Rev. 27 Page 9
Export Classification C, ECCN EAR99
MAIN ROTOR CONTROL SYSTEM BOLTS (CONT)
Swashplate Link-to-Rotating Ring (2) 20-057-6-36D 2500 hours
Gimbal Ring-to-Swashplate Support (2) 204-011-463-105 2500 hours
Gimbal Ring-to-Swashplate Inner
Ring (2)
204-011-463-001 1000 hours
Gimbal Ring-to-Swashplate Inner
Ring (2)
204-011-463-109 2500 hours
Collective Lever-to-Swashplate
Support (1)
20-057-8-92D 2500 hours
Boost Tube-to-Universal (3) 20-057-5-24D 2500 hours
Universal-to-Boost Cylinder (3) 20-057-5-24D 2500 hours
Boost Cylinder-to-Lower Support (3) 212-001-323-001 2500 hours
Rephasing Lever-to-Hub (4) 20-057-6-82D 1250 hours
Rephasing Lever-to-Hub (4) 20-057-8-84D 2500 hours
MAIN ROTOR SUPPLEMENTAL CONTROL SYSTEM BOLTS
Swashplate Inner Ring-to-R.H.
Cyclic Boost (1)
20-057-5-24D 2500 hours
Swashplate Inner Ring-to-L.H.
Cyclic Boost (1)
20-057-5-24D 2500 hours
Collective Lever-to-Collective Boost (1) 20-057-5-24D 2500 hours
PROPULSION AND DRIVE SYSTEM
Planetary Spider 204-040-785-003 On condition
Planetary Spider 412-040-785-101 2500 hours
Planetary Spider 412-040-785-103 On condition
Main Rotor Mast Assembly 412-040-101-105 10,000 hours or
80,000 RIN
Main Rotor Mast Assembly
(used on helicopters with Mast Torque
Systems)
412-040-101-121 10,000 hours or
60,000 RIN
Main Rotor Mast Assembly 412-040-101-127 10,000 hours or
80,000 RIN
Table 4-1. Airworthiness Limitations Schedule (Cont)
NOMENCLATURE PART NUMBER AIRWORTHINESS LIFE
1
28
29
30
28
29
30
25
28
29
30
28
29
30
28
29
30
28
29
30
28
29
30
29
30
28
29
30
31
6
45
7
8
9
7
8
10
7
8
9