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 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
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:
Operator or Crew
Direct Support Maintenance
General Support Maintenance
Column 5 - Tools and Equipment 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.
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.
EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS. SECTION III.
Column I - Reference Code. The tool and test equipment reference code correlates with a code used in the
MAC, section II, column 5.
Column 2 - Maintenance Category. The lowest category of maintenance authorized to use the tool or test
Column 3 - Nomenclature. Name or identification of the tool or test equipment.
Column 4 - National Stock Number. The National stock number of the tool or test equipment
Column 5 - Tool Number. The manufacturers part number.
EXPLANATION OF COLUMNS IN REMARKS. SECTION IV.
Column 1 - Reference Code. The code recorded in column 6, section II.
Column 2 - Remarks. This column lists information pertinent to the maintenance function being performed as
indicated in the MAC, section II.