H ....................General support maintenance
C-3. Column Entries Used in the MAC.
a. Column 1, Group Number. Column 1 lists group
D ....................Depot maintenance
numbers, the purpose of which is to identify
components, assemblies, subassemblies, and modules
e. Column 5, Tools and Equipment. Column 5
with the next higher assembly.
specifies, by code, those common tool sets (not
individual tools) and special tools, test, and support
b. Column 2, Component/Assembly.
equipment required to perform the designated function.
contains the names of components, assemblies,
subassemblies, and modules for which maintenance is
f. Column 6, Remarks. This column shall contain
a letter code in alphabetical order which shall be keyed
c. Column 3, Maintenance Functions. Column 3
lists the functions to be performed on the item listed in
Column Entries Used in Tool and Test
column 2. (For detailed explanation of these functions,
a. Column 1, Tool or Test Equipment Reference
d. Column 4, Maintenance Level.
Code. The tool and test equipment reference code
specifies, by the listing of a work time figure in the
correlates with a maintenance function on the identified
appropriate subcolumn(s), the lowest level of
end item or component.
maintenance authorized to perform the function listed in
This figure represents the active time
b. Column 2, Maintenance Level. The lowest level
required to perform the maintenance function at the
of maintenance authorized to use the tool or test
indicated level of maintenance.
If the number or
complexity of the tasks within the listed maintenance
function vary at different maintenance levels, appropriate
c. Column 3, Nomenclature. Name or identification
work time figures will be shown for each level. The
of the tool or test equipment.
number of man-hours specified by the work time figure
represents the average time required to restore an item
d. Column 4, National/NATO Stock Number. The
(assembly, subassembly, component, module, end item,
National or NATO stock number of the tool or test
or system) to a serviceable condition under typical field
operating conditions. This time includes preparation
time, troubleshooting time, and quality assurance/quality
e. Column 5, Tool Number.
control time in addition to the time required to perform
the specific tasks identified for the maintenance
functions authorized in the maintenance allocation chart.
The symbol designations for the various maintenance
levels are as follows:
a. Reference Code. The code scheme recorded in
C ....................Operator or crew
This column lists information
O ....................Organization maintenance
pertinent to the maintenance function being performed
F......................Direct support maintenance