a. Wrap 400 sandpaper around foam block with
cardboard in between to act as a cushion and a
The materials listed below are required to re-
Sandpaper should be
moisture retaining sponge.
store the distorted area.
d a m p e n e d with either plain water or detergent mix-
a . 400 sandpaper
b . 600 sandpaper
b. R e p e a t s t e p a . a b o v e , u s i n g 6 0 0 s a n d p a p e r
c . 2400A abrasive
and abrade for three minutes per square foot.
c. Wrap 2400A abrasive around foam block without
c a r d b o a r d . A b r a d e , using alternate strokes horizon-
These abrasives are graded the
tally and vertically in twenty-second intervals for
samo as conventional sandpapers,
approximately two minutes per square foot of material.
the higher the number the -finer
d . R e p e a t s t e p c . a b o v e , using 3200A abrasive.
the abrasive action.
e . R e p e a t s t e p c . a b o v e , using 3600A abrasive.
f. Repeat step c. above, using 4000A abrasive.
d. 3200A abrasive
g . R e p e a t s t e p c . a b o v e , using 6000A abrasive,
e . 3600A abrasive
w i t h the following exceptions:
f . 4000A abrasive
i n t e r v a l s and one and one-half minutes per square
g . 6000A abrasive
foot of material.
b . 8000A abrasive
h. Repeat step g. above, using 8000A abrasive
i. Container of talcum powder
u n d e r slight pressure.
j . Container of anti-static cream
i . Using fingertips with a circular motion, apply
k. Foam block 3 x 4 inches
a thin coat of anti-static cream , and buff the area
l. Cardboard block 3 x 4 inches
until dry with an industrial wipe.
m . Industrial wipes
j. I n s p e c t the restored area visually for distor-
tion. R e f e r to paragraph 6 above. If any distortion
is visible, repeat the necessary steps until the
The following procedure should be used to re-
distortion is removed.
store the distorted area:
By Order of the Secretary of the Army:
W. C. WESTMORELAND,
General, United States Army,
Chief of Staff.
KENNETH Q. WICKHAM,
Major General, United States Army,
The Adjutant General.
To be distributed in accordance with DA Form 12-31 (qty rqr block no. 94) requirements for organizational
maintenance instructions for all fixed wing and all rotor wing aircraft.
*U.S. Government PRINTING OFFICE: 1903-381-102/2961 Region 4.