subassemblies, and modules for which maintenance is
e. Column 5, Tools and Equipment. Column 5
specifies, by code, those common tool sets (not
c. Column 3, Maintenance Functions. Column 3
individual tools) and special tools, test, and support
lists the functions to be performed on the item listed in
equipment required to perform the designated function.
column 2. (For detailed explanation of these functions,
f. Column 6, Remarks. This column shall contain
a letter code in alphabetical order which shall be keyed
d. Column 4, Maintenance Level.
to the remarks contained in Section IV.
specifies, by the listing of a work time figure in the
appropriate subcolumn(s); the lowest level of
B-4. Column Entries Used in Tool and Test
maintenance authorized to perform the function listed in
This figure represents the active time
a. Column 1, Tools or Test Equipment
required to perform the maintenance function at the
The tool and test equipment
indicated level of maintenance.
If the number of
reference code correlates with a maintenance function
complexity of the tasks within the listed maintenance
on the identified end item or component.
function at the indicated level of maintenance. If the
b. Column 2, Maintenance Level. The lowest
number or complexity of the tasks within the listed
level of maintenance authorized to use the tool or test
maintenance function vary at different maintenance
levels, appropriate work time figures will be shown for
c. Column 3, Nomenclature.
each level. The number of man-hours specified by the
identification of the tool or test equipment.
work time figure represents the average time required to
d. Column 4, National/NATO Stock Number.
restore an item (assembly, subassembly, component,
The National or NATO stock number of the tool or test
module, end item, or system) to a serviceable condition
under typical field operating conditions.
e. Column 5, Tool Number. The manufacturer's
includes preparation time, troubleshooting time, and
quality assurance/quality control time in addition to the
time required to perform the specific tasks identified for
B-5. Explanation of Columns in Section IV.
a. Reference Code. The code scheme recorded
maintenance allocation chart. The symbol designations
for the various maintenance levels are as follows:
b. Remark s.
This column lists information
C ............ Operator or crew
pertinent to the maintenance function being performed
O ............ Organization maintenance
F ............ Direct support maintenance
H ............ General support maintenance
D ............ Depot maintenance