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.
CAD—Cartridge and cartridge-actuated
devices.
CAUTION—An operating procedure, prac-
tice, etc., that if not strictly observed could result
in damage to or destruction of equipment.
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; e.g., 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.
EI—Engineering investigation.
FCDC—Flexible confined detonating cord.
FLSC—Flexible linear shaped charge.
GPM—gallons per minute.
Hg—Mercury.
IMA—Intermediate maintenance activity.
IPB—Illustrated parts breakdown.
JULIAN DATE—The year and numerical day
of the year identified by four numeric characters.
The first character indicates the year and the
remaining three characters specify the day of the
year. For example, 3030 indicates the 30th day
of 1983.
KINKED—A twist or curl, as in cable, wire,
or tubing, caused by its doubling or bending upon
itself.
LOX—Liquid oxygen.
AI-1
