B-3. EXPLANATION OF COLUMNS IN THE MAC, SECTION II (Cont'd).
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, in hours, 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 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 or crew
O .......Unit Maintenance
F ........Direct Support Maintenance
H........General Support Maintenance
e. Column 5, Tools and Equipment. Column 5 specifies, by code, those common tool sets (not individual tools) and
special tools, TNMDE, and support equipment required to perform the designated function.
f. Column 6, Remarks Column 6 shall, when applicable, contain a letter code, in alphabetic order, which shall be keyed
to the remarks contained in Section IV.
B-4. EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIIREMENTS, SECTION III.
a. Column 1, Reference Code. The tool and test equipment reference code correlates with a code used in the MAC,
Section II, Column 5.
b. Column 2, Maintenance Category. The lowest category of maintenance authorized to use the tool or test equipment.
c. Column 3, Nomenclature. Name or Identification of the tool or test equipment.
d. Column 4, National Stock Number. The National stock number of the tool or test equipment.
e. Column 5, Tool Number. The manufacturer's part number.