BHT-212-MM-1
5-00-00
Page 172 Rev. 14 26 JUN 2013 Export Classification C, ECCN EAR99
MAIN ROTOR YOKE 212-011-102-
ALL
— Detailed Visual Inspection
BHT 212-CR&O 1. Remove bearing races and spacers.
2. Inspect yoke spindle for cracks and corrosion pits.
3. Inspect yoke spindle bearing journals for wear.
4. Any crack or wear beyond limits is cause for rejection of
the yoke. Remove any corrosion.
5. Assemble yoke.
ASB 212-90-59 MAIN ROTOR DRAG BRACE 204-011-140-ALL
— Inspect
BHT-212-CR&O 1. Remove drag brace assemblies.
2. Inspect drag brace assemblies for corrosion and
mechanical damage.
BHT-ALL-SPM 3. Perform a magnetic particle inspection.
4. Install drag brace assemblies.
BHT-212-CR&O MAIN ROTOR HUB GRIP 204-011-121
-ALL
— Detailed Visual Inspection
1. Prepare both main rotor grip tangs for inspection by
cleaning exposed surfaces with denatured alcohol (C-326) as
per BHT-ALL-SPM. Wipe dry.
2. Inspect grip surfaces for evidence of hairline cracks on
upper and lower tangs exposed surfaces. Pay particular
attention to the lower tang lower surface from the blade bolt
bushing flange to the trailing and leading edge of the tang.
Crack indication requires the grip to be removed from service
for further evaluation (Figure 5-7).
5-44. EACH 1200 HOURS/24 MONTHS OF COMPONENT OPERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
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