TM 1-1520-238-23
5-66
5.12.
MAIN ROTOR BLADE ANTI-PEEL DOUBLER REPAIR (AVIM) – continued
b. Mask off all screw holes (4). Use tape
(item 207, App F).
c. Mask off faying surfaces (5) of blade (2). Use
tape (item 208, App F).
(1) Do not mask the area where doubler (1) is to
be bonded.
CAUTION
To prevent damage to main rotor
blade, fill and flair material between
spars is not to be removed when pre-
paring surface of main rotor blade.
To prevent damage to main rotor
blade, sand metallic surfaces in a
spanwise direction. Sand glass skin
areas in a chordwise direction.
NOTE
When the paint is removed there will be
an layer of baked-on primer which has a
light drab green color. This primer is an
excellent bonding surface when clean
and should not be removed.
d. Sand spanwise to remove paint primer and fill
material from area to be bonded. Use cloth
(item 48, App F).
e. Sand spanwise to finish sanding area to be
bonded. Use paper (item 135, App F).
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M04-3521-16
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M04-3521-15
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M04-3521-3
SANDED AREA
