TM 9-2330-231-14&P
B-3. EXPLANATION OF COLUMNS IN THE MAC, SECTION Il-Continued.
d. Column 4, Maintenance Category. Column 4 specifies, by the listing of a worktime 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 worktime
figures will be shown for each category. The worktime 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/assembiy 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 - Organizational
F - Direct Support
H - General Support
D - Depot
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 EOUIPMENT REQUIREMENTS, 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.
B-5. EXPLANATION OF COLUMNS IN REMARKS, SECTION IV.
a. Column 1, Reference Code. The code recorded in column 6, section il.
b. Column 2, Remarks. This column lists information pertinent to the maintenance function being performed as
indicated in the MAC, section II.
B-3