TM 1-1520-238-23
5-172
Change 7
5.36.
MAIN ROTOR BLADE STRAP PACK REPAIR CRITERIA – continued
5.36.3. Repair Criteria
a. Check top and bottom of strap pack (1) for
failed laminates (2) (para 5.1).
NOTE
The break must be located within the re-
pair limits defined as 1 INCH inboard of
the edge of the outboard shoe to 1 INCH
outboard from the strap abrasion strip.
Breaks outside these limits are not repair-
able.
(1) If top or bottom laminate (2) is cracked or
broken, remove laminate (2).
NOTE
The removal of one laminate on one
strap is one failure. Go to special in-
spection No. 27 in paragraph 1.137 or
paragraph 5.1 for the number of allow-
able failures.
Lower strap pack abrasion strips are
shorter than upper abrasion strips. Re-
pair of lower laminates requires mea-
surement to be obtained from lower
abrasion strip.
(2) Measure from strap pack steel abrasion strip
(3) 1 INCH outboard on both legs of laminate
(2).
(3) Insert tongue depressor between cracked or
broken laminate (2) and good laminate (4) at
the 1 INCH location. Use depressor (item 70,
App F).
(4) Trim both legs of cracked or broken laminate
(2) at the 1 INCH location. Use shears.
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