TM 55-1520-240-23-4
5-77
TIP SEAL — MAJOR REPAIR (AVIM)
(Continued)
5-77
NOTE
This repair not applicable to blades
with tip sealant covered by fiberglass
doubler.
1.
Remove loose or damaged material (1) from tip
sealant (2). Use pocket or utility knife.
2.
Check for bond voids in sealant (2). Voids are
indicated by soft spots. Remove sealant to
expose voids.
3.
Trim material around damage (1) to a feather
edge.
4.
Clean damaged area (1). Use cloth (E120) damp
with acetone (E20). Wear gloves (E186).
5.
Wipe area dry. Use cloth (E120).
6.
Mask fairing skin, and trailing edge of tip cover, if
necessary. Use Teflon tape (E399).
7.
Cut piece of aluminum (E70) (3) to 4 inch x 18
inch size.
8.
Position piece of Teflon tape (E399) (4) adhesive,
side up, on aluminum sheet (E70) (3). Hold tape
(4) in place. Apply tape (E399) (5) over entire
plate (3) and tape (4).
5-442
