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:
O Organizational (AVUM)
F Direct Support (AVIM)
H 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 function.
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. TOOL AND TEST EQUIPMENT REQUIREMENTS, Section Ill
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 Federal Supply Code for manufacturers (5-digit) in parentheses.