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 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/quaIity 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
- Organizational Maintenance
- Direct Support Maintenance
- General Support Maintenance
- Specialized Repair Activity (SRA)
- Depot Maintenance
e. 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.
f. 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.
B-4. EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION Ill.
a. Column 1, Reference Code. The tool and test equipment reference code correlates with
a code used in the MAC, Section II, column 5.
The lowest category of maintenance authorized to use the
b. Column 2, Maintenance Category.
tool or test equipment.
c. Column 3, Nomenclature.
Name or identification of the tool or test equipment.
The national stock number of the tool or test
d. Column 4, National Stock Number.
e. Column 5, Tool Number.
The manufacturer's part number.