b. Column 2, Component/Assembly. Column 2 contains the names of components, assemblies, sub- assemblies
and modules for which maintenance is authorized.
c. Column 3, Maintenance Functions. Column 3 lists the functions to be performed on the item listed in column 2.
(For detailed explanation of these functions, see para. C-2).
d. Column 4. Maintenance Level. Column 4 specifies, by the listing of a work time figure in the appropriate
subcolumn(s), the lowest level of maintenance authorized to perform the function listed in column 3. This figure
represents the active time required to perform the maintenance function at the indicated level of maintenance. If the
number or complexity of the tasks within the listed maintenance function vary at different maintenance levels,
appropriate work time figures will be shown for each level. The number of man hours specified by 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,
troubleshooting time, and quality assurance/quality control time in addition to the time required to per- form the specific
tasks identified for the maintenance functions authorized in the maintenance al- location chart. The symbol designations
for the various maintenance levels are as follows:
C - Operator or Crew
O - Organizational Maintenance
F - Direct Support Maintenance
H - General Support Maintenance
D - Depot Maintenance
e. Column 5, Tools and Equipment. Column 5 specifies, by code, those common tool sets (not individual tools)
and special tools, test, and support equipment required to perform the designation function.
f. Column 6, Remarks. This column shall contain a letter code in alphabetic order which shall be keyed to the
remarks contained in Section IV.
C-4. Column Entries Used in Tool and Test Equipment Requirements
a. Column 1, Tool or Test Equipment Reference Code. The tool and test equipment reference code correlates
with a maintenance function on the identified end item or component.
b. Column 2, Maintenance Level. The lowest of maintenance authorized to use the tool or test equipment.
c. Column 3, Nomenclature. Name of identification of the tool or test equipment.
d. Column 4, National/NATO Stock Number. The National or NATO stock number of the tool or
e. Column 5, Tool Number. The manufacturer's part number.
C-5. Explanation of Columns in Section IV
a. Reference Code. The code scheme recorded in column 1, Section III.
b. Remarks. This column lists information pertinent to the maintenance function being performed as indicated on
the MAC, Section II.