EXPLANATIONS OF COLUMNS IN THE MAC, SECTIONS II, III AND IV

B.3

EXPLANATIONS OF COLUMNS IN THE MAC, SECTIONS II, III AND IV.

a. Column (1) - Group Number. Column 1 lists functional group code numbers, the pur-

pose of which is to identify maintenance significant components, assemblies, subassem-

blies, and modules with the next higher assembly.

b. Column (2) - Component/Assembly. Column 2 contains the item 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 B.2.)

d. Column (4) - Maintenance Level. Column 4 specifies each level of maintenance autho-

rized to perform each function listed in column 3. An "X" indicates the level at which

maintenance will be done. Ammunition maintenance does not require specific time allo-

cations for tactical items. The symbol designations for the various maintenance levels

are as follows:

C - Operator or crew maintenance

O - Unit maintenance

F - Direct support maintenance

H - General support maintenance

D - Depot maintenance

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