Textron Bell 206L3, Maintenance Manual

Page: 163 / 230

BHT-206L3-MM-1
5-00-00
1 JUN 2012 Rev. 19 Page 131 ECCN EAR99
SCHEDULED INSPECTIONS
5-42. 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.
Chapter 63 TRANSMISSION
NOTE
To increase the inspection interval to 2250 hours or
60 months, transmissions 206-040-004-107 and
subsequent (206-040-004-115 and subsequent for
206L3+ IGW Upgrade helicopters) must have been
operated with DOD-PRF-85734 oil since new or
since last overhaul (TB 206L-04-213).