TM 1-1520-238-23
5-13
5.2.
MAIN ROTOR BLADE REPAIR CRITERIA
5.2.1. Description
This task covers:
Repair Criteria.
5.2.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
5.2.3. Repair Criteria
a. The main rotor blade repair criteria provide inspection and repair information for the rotor blades. The
instructions for inspection are presented in tabular form.
Table 5-1. Provides repair limits for scratches, nicks, and gouges in the metallic skin area. This table shall also apply
as limits for corrosion of the root fitting.
Table 5-2. Provides repair limits for dents, depressions, and creases in the metallic skin area.
Table 5-3. Provides repair limits for miscellaneous damage in the metallic skin area.
Table 5-4. Provides repair limits for damage in the glass skinned honeycomb area.
Figure 5-1. Provides repair limits for paint erosion.
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