BHT-206A/B-SERIES-MM-1
5-00-00
30 APR 2013 Rev. 14 Page 193
Export Classification C, ECCN EAR99
f. Remove tail rotor driveshaft bearing hangers and tail
rotor gearbox for overhaul.
g. Check vertical fin for evidence of burning or debonding.
h. Inspect tailboom fitting for indication of arcing burns
around mounting points of tail rotor gearbox and vertical fin.
If no visual indications of damage are found, check
all ferrous dynamic components by magnetometer
with a range no larger than ±5 gauss. Point the arrow
within 0.5 inch (12.7 mm) of the component. If parts
of any component have a reading that is greater than
1 gauss, degauss these components.
3. If no indications of damage are found:
BHT-206A/B-M&O,
BHT-206B3-CR&O
a. Remove main rotor grips.
(1) Visually inspect needle bearings for signs of
electrical arcing, burning, or delamination.
(2) Visually check pitch horns and trunnion bearing
connections for arcing burns.
(3) If indications of arcing or burning are present,
overhaul main rotor hub assembly and scrap pitch link and all
attaching hardware.
(4) If no indications are found, reassemble main rotor
hub and return to service.
b. Remove main rotor mast assembly. Without removing
bearing from mast, inspect visible portions of bearing for signs
of electrical arcing or burning. Rotate bearing during inspection.
Check bearing for smooth rotation. Visually inspect lower mast
bearing race and driving spline on mast for signs of arcing or
burning.
5-58. LIGHTNING STRIKE (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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