d. Column 4, Maintenance Level. Column 4
specifies, by the listing of a work time figure in the
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
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 perform the specific tasks identified for
maintenance allocation chart. The symbol designations
for the various maintenance levels are as follows:
Operator or crew
Direct support maintenance
General support maintenance D
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.
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
Reference Code. The tool and test equipment
reference code correlates with a maintenance function
on the identified end item or component.
Column 2, Maintenance Level. The lowest
level of maintenance, authorized to use the tool or test
identification of the tool or test equipment.
Column 4, National/NATO Stock Number.
The National or NATO stock number of the tool or test
Column 5, Tool Number. The manufacturer's
C-5. Explanation of Columns in Section IV.
Reference Code. The code scheme recorded
in column 6, Section II.
pertinent to the maintenance function being performed