BHT-206L4-MM-1
5-00-00
Page 184 Rev. 22 10 MAR 2017 Export Classification C, ECCN EAR99
Table 5-4. Component Overhaul Schedule
NOMENCLATURE PART NUMBER
OVERHAUL INTERVAL
(HOURS)
MAIN ROTOR CONTROLS
Swashplate and Support 206-010-450-101 4800 hours
MAIN ROTOR HUB
Hub Assembly 206-011-100-159/-105 2400 hours
POWER TRAIN
Transmission 206-040-004-115 4500 hours
Mast Assembly 206-040-014-107 3000 hours
Input Driveshaft 206-340-300-101/-105 2500 hours
Freewheel Unit 406-040-500-113 3000 hours
TAIL ROTOR SYSTEM
Tail Rotor Hub Assembly 206-011-810-139 2500 hours
Tail Rotor Gearbox 206-040-402-101 6000 hours
HYDRAULIC SYSTEM
Hydraulic Servo Actuators 206-076-062-101 3600 hours
POWER PLANT
Turboshaft Engine 250-C30P Refer to Rolls-Royce 250-C30
Series Operation and Maintenance
Manual, 14W2
STARTER GENERATORS
Starter Generator ALL 1000 hours
NOTES:
The operating time specified for overhaul of any given part number listed applies to all successive dash
numbers (or suffixes) for that component, unless otherwise specified.
Input driveshafts 206-340-300-101/-105 must be overhauled at 5000 hours of operation and every
2500 hours of operation thereafter. Overhaul is to be accomplished by Kamatics Corporation only.
Return driveshaft to Bell Helicopter Textron (BHT) per Information Letter (IL) GEN-04-98.
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