24-Month Inspection - Bell 206L4 Maintenance Manual

5-35.

24-MONTH INSPECTION

DATA REFERENCE
ECCN EAR99
SCHEDULED INSPECTIONS
INSPECTION TASK DESCRIPTION
DATE: __________________W.O. _____________________
FACILITY: _________________ _ ________________________
HELICOPTER S/N: __________ _ ________________________
REGISTRY NO.: ____________ _ ________________________
TOTAL TIME:_______________________________________
SIGNATURE:_______________ _ ________________________
MAIN ROTOR FLIGHT CONTROL BOLTS/NUTS
1. Remove main rotor flight control bolts/nuts (1 through 14,
Figure 5-2).
2. Clean bolts/nuts with MEK (C-309). Wipe dry.
3. Visually inspect bolts/nuts for corrosion and thread
damage. Replace any bolts/nuts that have damaged threads,
detectable wear and/or corrosion pitting.
4. Apply a coating of corrosion preventive compound (C-104)
to all bolt shanks prior to installation. Do not apply corrosion
preventive compound to bolt threads.
5. Install flight control bolts and attaching hardware. Torque
nuts and install new cotter pins.
6. Apply a coating of corrosion preventive compound (C-101)
to all bolt heads, washers, nuts, and exposed threads after
installation.
Operation in environmental conditions that erode
corrosion preventive compound (C-101) may require
periodic touch-up of corrosion preventive compound.
Before touch-up, visually check exposed surfaces for
evidence of corrosion. If corrosion is detected,
accomplish step 1 through step 6.
NOTE
25 FEB 2011 Rev. 13
BHT-206L4-MM-1
INITIAL
MECH OTHER
5-00-00
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