TB 55-1 560-276-24/1
INTRODUCTION
Section I. GENERAL
2. Report of
Equipment Publication Improvements
This bulletin, issued expressly for maintenance
Report of errors, omissions, and recommendations
personnel, is the official document for the polish kit,
for improving this publication by the individual user
glass. The purpose of this bulletin is to supply the
i s encouraged. Reports should be submitted on DA
m a i n t e n a n c e personnel with the latest information
Form 2028 (Recommended Changes to DA Publica-
tions) and forwarded direct to Commanding General,
o n kit contents and instructions on their intended
US Army Aviation Systems Command, ATTN: AMSAV-
uses.
R-M, PO Box 209, St. Louis, Missouri 63166.
Section Il. DESCRIPTION AND DATA
O n e 3- x 6-inch sheet, type 6000A abrasive
O n e 3- x 6-inch sheet, type 8000A abrasive
The Polish kit, glass, P/N RS-69, FSN 1560-450-
Two sheets 400 sandpaper
3 6 2 2 is used to restore Aircraft Plastics, such as
Two sheets 600 sandpaper
windows and windshields to the original clarity.
One two-ounce container talcum powder
One one-ounce container liquid detergent
One one-ounce container anti-static cream
The kit is
made up from the following list of
Five industrial wipes
materials:
One 3- x 4-inch foam block
O n e 3-
x
6-inch
sheet,
type
2400A
abrasive
Two 3- x 4-inch cardboard blocks
O n e 3-
x
6-inch
sheet,
type
3200A
abrasive
One Instruction sheet
type
3600A
abrasive
O n e 3-
x
6-inch
sheet,
O n e 3-
x
6-inch
sheet,
type
4000A
abrasive
Section Ill. TYPES OF DISTORTION
s c r a t c h e s , deep scratches, or fractures, which in-
While performing the duties of an aircraft main-
clude chipping" very deep abrasions, or crazing.
tenance technician, the following types of distortion
may be encountered:
Hairline scratches, minor
Section IV. RECOGNITION OF DISTORTION
5. Senses
Used in
Recognition
III above, can be detected by the following methods:
a . Hairline scratches can be detected with the
The following senses may be used in the recogni-
T h i s detection can be either close-up
tion of distortion:
n a k e d eye.
a. Visual (naked eye).
(arms length) or distant (approx 30 feet).
b. Feel (fingernail and fingertip)
(1) W h e n u s i n g t h e n a k e d e v e c l o s e - u p
m e t h o d o f d e t e c t i o n , t h e following
6. Methods of
Recognition
procedure should be used:
The specific types of Distortion listed in section
2