TM 5-6675-330-12&P
A-3 EXPLANATION OF COLUMNS IN THE MAC, SECTION II
a. Column 1, Group Number. Column 1 functioncl
group code numbers, the purpose of which is to identiify
maintenance significant components, assemb!ies, sub-
assemblies, and modules with the next higher assembly.
End item group number shall be “00".
b. Column 2, Component/Assembly. Column 2 contains
the names of components, assemblies, subassemblies,
and modules for which maintenance is authorized,
c. Column 3, Maintenance Function Column 3 lists the
functions to be performed on the item listed in Column 2.
(For detailed explanation of these functions, see
paragraph A-2.)
d. Column 4, Maintenance Category. Column 4
specifies, by the listing of a work time figure in the
appropriate subcolumn(s), the category of maintenance
authorized to perform the function listed in Column 3. This
figure represents the active time required to perform that
maintenance function at the indicated category of
maintenance, If the number or complexity of the tasks
within the listed maintenance function vary at different
maintenance categories, appropriate work time figures
will be shown for each category The work time figure
represents the average time required to restore an item
(assembly, subassembly, component, module, end item,
or system) to a serviceable condition under typical field
operating conditions, This time includes preparation time
(including any necessary disassembly/assembly time
troubleshooting/fault location time, and qualify
assurance/qualify 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 categories are as follows:
C. . . . Operator or crew
O. . . . . Unit Maintenance
F . . . . Intermediate Direct Support Maintenance
H Intermediate General Support Maintenance
D Depot maintenance
e. Column 5, Tools and Equipment. Column 5 specifies,
by code, those common tool sets (not individual tools]
and special tools, TMDE, and support equipment
required to perform the designated function.
f. Column 6, Remarks. This column shall, when
applicable, contain a letter code, in alphabetic order,
which shall be keyed to the remarks
A-2
