TM 55-1520-240-23-4
5-66.3
TITANIUM NOSE CAP LIGHTNING STRIKE REPAIR
(Continued)
5-66.3
4.
Repair damage to nose cap (2) under jumper
strip (8) as follows:
a.
Remove jumper strip (8). Use aluminum
chisel.
Do not break fibers of the fairing skin.
b.
Remove damage on nose cap (2). Use a
grinder. Edge of nose cap can be scalloped
to full depth if required. Use a 1 inch
diameter grinder.
c.
Smooth edge of repair. Use abrasive paper
(E8 or E9). Sand in spanwise direction only.
d.
Wipe repair area. Use cloth (E20) damp with
acetone (E120). Wipe dry with clean cloth
before acetone evaporates.
e.
Mix adhesive as follows:
(1)
Weigh 7 parts of gray hardener and 5
parts of white base. Use tip balance.
(2)
Mix in polyethylene cup (E157) until color
is uniform. Use wood spatula (E424).
f.
Fill blended area with adhesive (E43).
INSPECT
FOLLOW-ON MAINTENANCE:
Replace jumper strip (Task 5-81.3.1).
Refinish repair area (Task 5-82).
END OF TASK
5-323
