c. Column 3, Maintenance Functions. Column 3 lists the functions to be performed on the item listed in column 2.
When items are listed without maintenance functions, it is solely for purpose of having the group numbers in the MAC
and RPSTL coincide.
d. Column 4, Maintenance Category. 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 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 number of task-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 perform the specific
tasks identified for the maintenance functions authorized in the maintenance allocation chart. Subcolumns of column 4
are as follows:
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 designated function.
f. Column 6, Remarks. Column 6 contains an alphabetic code which leads to the remarks in section IV, Remarks,
which is pertinent to the item opposite the particular code.
B-4. Tool and Test Equipment Requirements (Sect. III)
a. Tool or Test Equipment Reference Code. The numbers in this column coincide with the numbers used in the
tools and equipment column of the MAC. The numbers indicate the applicable tool or test equipment for the
b. Maintenance Category. The codes in this column indicate the maintenance category allocated the tool or test
c. Nomenclature. This column lists the noun name and nomenclature of the tools and test equipment required to
perform the maintenance functions.
d. National/NA TO Stock Number. This column lists the National/NATO stock number of the specific tool or test
e. Tool Number. This column lists the manufacturer's part number of the tool followed by the Federal Supply Code
for manufacturers (5-digit) in parentheses.
B-5. Remarks (Sect. IV)
a. Reference Code. This code refers to the appropriate item in section II, column 6.
b. Remarks. This column provides the required explanatory information necessary to clarify items appearing in