Textron Bell 412 - CHAPTER 4 - AIRWORTHINESS LIMITATIONS SCHEDULE (CONT); MAIN ROTOR HUB (CONT); MAIN ROTOR CONTROLS

FAA APPROVED BHT-412-MM-2
4-00-00
25 SEP 2018 Rev. 27 Page 7
Export Classification C, ECCN EAR99
MAIN ROTOR HUB (CONT)
Pitch Horn Assembly 412-010-149-105 5000 hours
Pitch Horn Assembly 412-010-149-111 15,000 hours
Retention Bolt 412-010-124-105 5000 hours
Retention Bolt (Expandable) 412-010-137-103 5000 hours
Damper Bridge 412-010-104-101 5000 hours
Damper Bridge 412-010-183-101 10,000 hours
Damper Bridge 412-010-183-109 15,000 hours
Damper Bridge 412-010-185-101 10,000 hours
Damper Bridge 412-010-185-109 15,000 hours
Damper Bridge 412-018-068-101 10,000 hours or
180 months
Damper Bridge 412-010-170-101 10,000 hours or
180 months
Pivot Bearing 412-010-106-101 On condition
Fitting 412-010-111-101 5000 hours
Damper Yoke Set 412-010-145-101 On condition
Damper Yoke Set 412-310-146-103 On condition
MAIN ROTOR DROOP RESTRAINT
Bolt (8) MS-21250-H05-006 120 months
MAIN ROTOR SIMPLE PENDULUM ABSORBERS
Bolt, Bracket (16) EWB0420D-7-36 15,000 hours
MAIN ROTOR CONTROLS
Rephasing Lever Assembly 412-010-403-109 1250 hours
Rephasing Lever Assembly 412-010-403-113 5000 hours
Drive Link Assembly 412-010-405-101 5000 hours
Swashplate Outer Ring 412-010-407-105 2500 hours
Table 4-1. Airworthiness Limitations Schedule (Cont)
NOMENCLATURE PART NUMBER AIRWORTHINESS LIFE
1
27
2
2
4
4
4
2
32