TM 5-3825-270-23&P
0222
The Army Maintenance System MAC - Continued
EXPLANATION OF ENTRIES IN THE MAC
COLUMN (1) GROUP NUMBER
Entry lists Functional Group Code (FGC) 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
Entry contains the item names of components, assemblies, subassemblies, and modules for which maintenance is
authorized.
COLUMN (3) MAINTENANCE FUNCTION
Entry lists the functions to be performed on the item listed in column (2). (For a detailed explanation of these functions,
refer to "Maintenance Functions" outlined above.)
COLUMN (4) MAINTENANCE LEVEL
Entry specifies each level of maintenance authorized to perform each function listed in column (3), by indicating work
time required (expressed as manhours in whole hours or decimals) in the appropriate subcolumn. 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:
FIELD: C Operator or Crew maintenance, O Service maintenance, and F Field maintenance.
SUSTAINMENT: L Specialized Repair Activity, H below Depot maintenance, and D Depot maintenance.
NOTE
The "L" maintenance level is not included in column (4) of the MAC. Functions at this level
of maintenance are identified by a work time figure in the "H" column of column (4), and an
associated reference code is used in the REMARKS column (6). This code is keyed to the
remarks and the SRA complete repair application is explained there.
COLUMN (5) TOOLS AND EQUIPMENT REFERENCE CODE
Entry 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 CODE
When applicable, this entry contains a letter code, in alphabetical order, which is keyed to the remarks table entries.
0222-4
