TM 5-4310-373-14
C . . . . . . . . . . . . . . . . . . . . . Operator or crew
B-3. COLUMN ENTRIES USED IN THE MAC.
O . . . . . . . . . . . . . . Organizational maintenance
a. Column 1, Group Number. Column 1 lists group
numbers, the purpose of which is to identify com-
ponents, assemblies, subassemblies, and modules
F . . . . . . . . . . . . . . Direct support maintenance
with the next higher assembly.
H . . . . . . . . . . . . . General support maintenance
b. Column 2, Component/Assembly. Column 2 con-
D . . . . . . . . . . . . . . . . . . . Depot maintenance
tains the names of components, assemblies, sub-
assemblies, and modules for which maintenance
e. Column 5, Tools and Equipment. Column 5 speci-
is authorized.
fies, by code, those common tool sets (not indi-
vidual tools) and special tools, test, and support
c. Column 3, Maintenance Functions. Column 3 lists
equipment required to perform the designated
the functions to be performed on the item listed
function.
in Column 2. (For detailed explanation of these
functions, see paragraph B-2.)
f. Column 6, Remarks. This column contains a letter
code in alphabetic order which is keyed to the
d. Column 4, Maintenance Level. Column 4 specifies,
remarks contained in Section IV.
by the listing of a "work time" figure in the ap-
propriate subcolumn(s), the lowest level of mainte-
B-4. COLUMN ENTRIES USED IN TOOL AND TEST
EQUIPMENT REQUIREMENTS.
nance authorized to perform the function listed
in Column 3. This figure represents the active
time required to perform the maintenance func-
a. Column 1, Tool or Test Equipment Reference
tion at the indicated level of maintenance. If the
Code. The tool and test equipment reference code
number of complexity of the tasks within the
correlates with a maintenance function on the
listed maintenance function vary at different
identified end item or component.
maintenance levels, appropriate work time figures
will be shown for each level. The number of man-
b. Column 2, Maintenance Level. The lowest level of
hours specified by the work time figure represents
maintenance authorized to use the tool or test
the average time required to restore an item (as-
equipment.
sembly, subassembly, component, module, end
c. Column 3, Nomenclature. Name or identification
item, or system) to a serviceable condition under
of the tool or test equipment
typical field operating conditions. This time in-
cludes preparation time, troubleshooting time, and
d. Column 4, National/NATO Stock Number. The
quality assurance/quality control time in addition
National or NATO stock number of the tool or
to the time required to perform the specific tasks
test equipment.
identified for the maintenance functions author-
ized in the maintenance allocation chart. The
e. Column 5, Tool Number. The manufacturer's
symbol designations for the various maintenance
part number.
levels are as follows:
B-2
