BHT-412-MM-2 FAA APPROVED
4-00-00
Page 10 Rev. 27 25 SEP 2018
Export Classification C, ECCN EAR99
PROPULSION AND DRIVE SYSTEM (CONT)
Main Rotor Mast Assembly
(used on helicopters with Mast Torque
Systems)
412-040-101-129 10,000 hours or
60,000 RIN
Main Rotor Mast Assembly
(used on helicopters with Mast Torque
Systems and with BHT-412-SI-62, Slope
Landing Kit)
412-040-101-135 5000 hours or
60,000 RIN
Main Rotor Mast Assembly 412-040-114-101 2,500 hours or
25,000 RIN
Main Rotor Mast Assembly
(used on helicopters with Mast Torque
Systems and with BHT-412-SI-62, Slope
Landing Kit)
412-704-012-105 5000 hours or
60,000 RIN
Cap Retention 412-010-161-101 10,000 hours
Cap Retention 412-010-171-101 10,000 hours
Cap Retention 412-010-171-103 10,000 hours
Mast Cap 412-010-171-105 5,000 hours
Cone 412-010-165-101 10,000 hours
Cone 412-010-165-103 5,000 hours
Drive Pin 412-010-166-101 10,000 hours
Drive Pin 412-010-166-103 5,000 hours
Upper Cone Seat 412-010-164-101 10,000 hours
Upper Cone Seat 412-010-174-101 10,000 hours
Upper Cone Seat 412-010-186-101 10,000 hours
Upper Cone Seat 412-010-186-107 5,000 hours
Upper Cone Seat 412-010-286-101 2,500 hours
Splined Plate Assembly 412-010-177-101 Life limited
(see notes)
Splined Plate Assembly 412-010-177-105 10,000 hours or
60,000 RIN
Table 4-1. Airworthiness Limitations Schedule (Cont)
NOMENCLATURE PART NUMBER AIRWORTHINESS LIFE