APPENDIX I
GLOSSARY
ABO—Aviators breathing oxygen.
ACM—Air-cycle machine.
ACS—Air-conditioning system.
ADC—Air data computer.
AFC—Airframes change.
AIMD—Aircraft intermediate maintenance
department.
ALLOY—A metal that is a mixture of two or
more metals.
AMBIENT—Surrounding; adjacent to; next
to. For example, ambient conditions are physical
conditions of the immediate area such as ambient
temperature, ambient humidity, ambient pressure,
etc.
AN—Air Force—Navy (standard or specifica-
tion).
ANOXIA—A complete lack of oxygen in the
blood stream.
APU—Auxiliary power unit.
BIT—Built-in tester.
BLEED AIR—Hot, high-pressure air, taken
from the compressor section of a jet engine.
BRU—Barastatic release unit.
CAD—Cartridge and cartridge-actuated
devices.
CAUTION—An operating procedure,
practice, etc., that if not strictly observed
could result in damage to or destruction of
equipment.
CCU—Component control unit.
CDI—Collateral duty inspector.
CELSIUS—A temperature scale using 0 as the
freezing point of water and 100 as the boiling
point. The scale has 100 equal divisions between
the 0 and 100 with each division designated a
degree. A reading is usually written in an
abbreviated form; for example, 75°C. This scale
was formerly known as the centigrade scale, but
it was renamed in recognition of Anders Celsius,
the Swedish astronomer who devised the scale.
CF3Br—The chemical symbol for trifluoro-
bromomethane.
CNO—Chief of Naval Operations.
CONTAMINANT—An impurity such as
harmful foreign matter in a fluid.
DODIC—Department of Defence Informa-
tion Code.
DTG—Date-time group.
ECS—Environmental control systems.
EI—Engineering investigation.
FCDC—Flexible confined detonating cord.
FLSC—Flexible linear shaped charge.
GPM—gallons per minute.
Hg—Mercury.
IMA—Intermediate maintenance activity.
IMP—Initiator multi-purpose.
IPB—Illustrated parts breakdown.
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