TM 55-1520-240-23-4
5-66.4
REPAIR ROOT END SLOT SEAL
5-66.4
INITIAL SETUP
Applicable Configurations:
All
Tools:
Airframe Repairer’s Tool Kit, NSN 5180-00-323-4876
Heat Lamp
Materials:
Abrasive Paper (E7 and E9)
Acetone (E20)
Cloth (E120)
Sealant (E336)
Teflon Tape (E399)
Temperature Indicating Strips (E413)
Parts:
Root End Slot Seal 114R1779-1
Personnel Required:
Aircraft Structural Repairer
Inspector
Equipment Condition:
Off Helicopter Task
Adhesive used in the manufacturing of
some fiberglass rotor blades contain
asbestos. During blade repair, strict
adherence to all safety procedures
when working with asbestos must
be complied with (applies to blade
serial number A-1-0001 to 0424 and
A-2-0001 to 0429 only).
1.
Remove finish from root end to a distance of
1 inch all around root slot sealant (1). Use
abrasive paper (E7).
2.
Remove root slot sealant (1). Use utility knife
and chisel.
Acetone (E20) is extremely flammable.
It can be toxic. Avoid inhaling. Use
only with adequate ventilation. Avoid
contact with skin, eyes, or clothing.
Keep away from heat, sparks, or open
flame. In case of contact, immediately
flush skin or eyes with water for
at least 15 minutes. Get medical
attention for eyes.
3.
Clean repair area. Use clean cloth (E120) damp
with acetone (E20). Wipe dry before acetone
evaporates. Use clean dry cloth.
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