BHT-206L4-MM-1
5-00-00
1 JUN 2012 Rev. 16 Page 119
ECCN EAR99
5-40. 1500 HOURS OF COMPONENT OPERATION
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
DATE: __________________W.O. _____________________
FACILITY: __________________________________________
HELICOPTER S/N: ___________________________________
REGISTRY NO.: _____________________________________
TOTAL TIME:_______________________________________
SIGNATURE:________________________________________
Chapter 63
BHT-206A/B/L-Series-
CR&O
MAIN ROTOR MAST
1. Remove, disassemble, and clean main rotor mast.
2. Inspect main rotor mast as follows:
a. Visually inspect mast splines for burrs, nicks, cracks,
and wear. Indication of wear requires an over pins dimensional
check.
b. Visually inspect mast inner and outer surfaces for
corrosion. Inspect surface protective coatings for condition.
c. Visually inspect bearing balls and races for pits,
erosion, spalling, and brinelling.
3. Reassemble and install main rotor mast.
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