TM 55-2835-208-23
GLOSSARY
Section 2.
DEFINITIONS (Continued)
TERM
DEFINITION
D
Dent
A completely smooth surface depression caused by pres-
sure or impact from a smooth ball-like foreign object.
T h e p a r e n t m a t e r i a l i s d i s p l a c e d , b u t u s u a l l y n o n e i s
separated .
D i s t o r t i on
Twisting or bending out of a normal, natural or original
shape,
usually caused from being exposed to excessive
p r e s s u r e o r t e m p e r a t u r e e i t h e r w h e n r e s t r a i n e d o r u n-
r e s t r a i n e d.
E
Errosion
Wearing away of metal.
F
F e r r u l es
Metal band or socket.
Foreign Material
Foreign Object
Fraying
G
Gouge
K
Kinks
See Contamination.
Any object such as a tool, piece of equipment, APU part
(nut, bolt, l o c k w i r e ) t h a t c o u l d i n a n y w a y d a m a g e t he
APU .
Wearing or rubbing of areas, generally used in reference
to damage on wire-braid covering (of teflon hose) or on
thermocouple harness.
A w i d e r o u g h s c r a t c h o r g r o u p o f s c r a t c h e s , u s u a l l y,
w i t h o n e o r m o r e s h a r p l y i m p r e s s e d c o r n e r s,
a n d f r e -
quently accompanied by deformation or removal of parent
m e t a l.
Short,
t i g h t t w i s t s o r c u r l s
c a u s e d b y a d o u b l i n g or
winding of a hose or line upon itself.
Likely to cause
d i f f i c u l t i e s i n t h e o p e r a t i o n .
GLOSSARY 3
