Textron Bell 412, Maintenance Manual

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BHT-412-MM-2
5-00-00
Export Classification C, ECCN EAR99
NOTE
Evidence of corrosion on exposed surfaces of mast
(pole) assembly will require further disassembly to
determine extent of the damage.
10. Visually examine inside and outside exposed surfaces of
mast (pole) assembly for evidence of corrosion and/or
mechanical damage.
11. Assemble main rotor mast assembly.
SPECIAL INSPECTIONS
5-32. EACH 3000 HOURS OF MAIN ROTOR MAST (412-040-366-103 AND -105)
OPERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
26 FEB 2013 Rev. 16 Page 171/172