TM 55-1520-240-23-4
5-77
TIP SEAL — MAJOR REPAIR (AVIM)
(Continued)
5-77
9.
Attach end mold (6) to blade (7). Use tape (4)
as hinge. Secure tape to blade. Use masking
tape (E38).
Sealant (E336) can irritate skin and
cause burns. Avoid contact with skin,
eyes, or clothing. In case of contact,
immediately flush skin or eyes with
water for at least 15 minutes. Get
medical attention for eyes.
10.
Mix sealant (E336). Follow instructions on
container. Blend until color is uniform.
11.
Fill fairing void slowly. Use sealant (E336). As
void is filled, raise end mold (6) toward vertical.
Avoid air bubbles.
12.
Let sealant (E336) stand several minutes. Break
any bubbles that surface. Add sealant to fill
any voids that remain. Fair sealant. Use wood
spatula (E424).
13.
Apply Teflon tape (E399) to hold end mold (6)
against blade (7).
14.
Allow sealant (E336) to cure 6 hours at 70º -
80ºF (21º - 27ºC).
15.
Remove masking tape (E388) and end mold (6).
16.
Check for absence of voids, and smooth fairing.
17.
Deleted.
18.
Trim and sand repaired area. Use pocket knife
and abrasive paper (E7).
INSPECT
FOLLOW-ON MAINTENANCE:
Cover tip seal with fiberglass cloth (Task 56, steps
8 thru 21).
Refinish blade repair (Task 5-82).
END OF TASK
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