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TM 5-5430-219-13
EXPLANATION OF COLUMNS IN THE MAC, SECTION II.
B-3.1
Column 1. Group Number. Column 1 lists functional group code
numbers, the purpose of which is to identify maintenance significant
components, assemblies, subassemblies, and modules with the next higher
assembly.
End item group number shall be “00.”
B-3.2 Column 2. Component/ Assembly. Column 2 contains the names of
components, assemblies, subassemblies, and modules for which maintenance is
authorized.
B-3.3
Colunm 3 Maintenance Funtion. Column 3 lists the functions to be
performed on the item listed in column 2. (For detailed explanation of
these functions, see paragraph B-2.)
B-3.4
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 varies 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
c o n d i t i o n s.
This time includes preparation time (including any necessary
disassembly/assembly time), troubleshooting/fault location time, and
quality assurance/quality 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
O
.
.
.
.
.
.
.
Unit
maintenance
F . . . . . . . . . .
Intermediate direct support maintenance
H . . . . . . . . . .
Intermediate general support maintenance
D . . . . . . . . . .
Depot maintenance
B-3.5
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.
B-3.6 Column 6. Remarks. This column shall, when applicable, contain a
letter code, in alphabetic order, which shall be keyed to the remarks
contained in section IV.
B-3
Column 4. Maintenance Category.
Column 5. Tools and Equipment.
B-3
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