EXPLANATION OF COLUMNS IN THE MAC - TM-10-4110-262-13-P0249

TM 10-4110-262-13&P

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EXPLANATION OF COLUMNS IN THE MAC

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 (NHA).

Column (2) Component/Assembly. Column (2) contains the names of components, assemblies,

subassemblies, and modules for which maintenance is authorized.

Column (3) Maintenance Function. Column (3) lists the functions to be performed on the item listed in

Column 2. (For detailed explanation, refer to the previous section entitled 'Maintenance

Functions outlined above)

Column (4) Maintenance Level. Column (4) specifies each level of maintenance authorized to perform

each function listed in Column (3), by indicating work time required (expressed in mm/hr in

whole hours or decimals) in the appropriate subcolumns. This work time figure represents

the active time required to perform that maintenance function at the indicated level of

maintenance. If the number or complexity of the tasks within the listed maintenance function

varies at different maintenance levels, appropriate work time figures are to be shown for each

level. 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 quality assurance time in addition to the time required to perform the specific tasks

identified for the maintenance functions authorized in the MAC. The symbol designations for

the various maintenance levels are as follows:

C - Operator or crew maintenance

O - Unit Maintenance

- Direct Support Maintenance

- Specialized Repair Activity (SRA)

- General Support Maintenance

- Depot Maintenance

NOTE

The "L" maintenance level is not included in Column (4) of the MAC.

Functions to this level of maintenance are identified by a work figure in

the "H" column of Column (4), and an associated reference code is used

in the REMARKS Column (6). The code is keyed by the remarks and the

SRA complete repair application is explained there.

Column (5) Tools and Equipment Reference Code. Column (5) specifies, by code, those common tool

sets (not individual tools), Common Test, Measurement, and Diagnostic Equipment (TMDE),

and special tools, special TMDE and special support equipment required to perform the

designated function. Codes are keyed to the entries in the tools and test equipment table.

Column (6) Remarks. This column, when applicable, the column contains a letter code, in alphabetic

order, which is keyed to the remarks table entries.

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