TM 1-1520-238-23
2-43
2.12.
CLASSIFICATION OF FUSELAGE DAMAGE AND TYPES OF REPAIR – continued
Category
Action
Limits
j. Main Landing Gear Cross Tube Scratches or Nicks
B
Less than 0.75 INCH in diameter and no
deeper than 0.215 INCH after clean up.
Repair (TM 1-1500-204-23).
C
Exceeds B.
Replace.
k. Kevlar/Epoxy Skin Cracks, Tears, or Punctures
B
Cracks or tears: less than 25 PERCENT
length of shortest skin dimension.
Repair (para 2.30).
Punctures: less than 2.00 INCHES from
supporting structure.
Repair (para 2.30).
C
Exceeds B or hinders normal operation or
function.
Replace.
l. Kevlar/Epoxy Skin or Honeycomb Delamination
B
No deeper than three plies or 0.050 INCH,
whichever is less. (Treat limit exceeding
damages as crack, tear, or puncture
repair.)
Repair (para 2.30).
m. Kevlar/Epoxy Skin or Honeycomb Delamination
C
Greater than 6.00 INCHES but less than
40 PERCENT of panel area.
Replace if possibility of danger to crew or
helicopter exists.
Greater than 40 PERCENT of panel area.
Replace panel.
n. Kevlar/Epoxy Fairings Debonding
B
-------
Rebond where ribs, gussets, baffles,
stiffeners, seals, and doublers have
debonded.
o. Kevlar/Epoxy Bond Honeycomb Panels Cracks, Tears, or Punctures
B
Cracks or tears: less than 6.00 INCHES
long. (Damage to core must not exceed
6.00 INCHES in any direction after
trimming and clean up).
Repair (para 2.30).
C
Exceeds B (cracks, tears, or punctures).
Replace item.
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