B-3. COLUMN ENTRIES
a. Column 1: GROUP NUMBER. Column 1 lists group numbers, the purpose of which is to identify
components, assemblies, subassemblies, and modules with the next higher assembly.
b. Column 2: COMPONENT ASSEMBLY. Column 2 contains the noun names of components,
assemblies, subassemblies, 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. 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 of 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 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:
- Direct Support
- General Support
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
f. Column 6: REMARKS. Column 6 contains an alphabetic code which leads to the remark in
Section IV, Remarks, which is pertinent to the item opposite the particular code.
B-4. TOOLS AND TEST EQUIPMENT REQUIREMENTS
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 maintenance functions.
b. MAINTENANCE CATEGORY. The codes in this column indicate the maintenance category
allocated the tool or test equipment.
c. NOMENCLATURE. This column lists the noun name and nomenclature of the tools and test
equipment required to perform the maintenance functions.
d. NATIONAL/NATO STOCK NUMBER. This column lists the National/Nato stock number of the
specific tool or test equipment.
e. TOOL NUMBER. This column lists the manufacturer's part number of the tool followed by the
(5 digit) Federal Supply Code for Manufacturers in parentheses.
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 Section Il.