TM 10-4630-206-12&P
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Column (3), Maintenance Function. Column (3) lists the functions to be performed on the item listed in
Column (2). (For detailed explanation of these functions, see paragraph b. above)
Column (4), Maintenance Level. Column (4) specifies, by the listing of a work time figure (expressed as
man-hours shown as whole hours or decimals) in the appropriate subcolumn(s), the 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 level of maintenance. If the number or the complexity
of the tasks within the listed maintenance function vary at different maintenance levels, appropriate work
time figures will be shown for each level. 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 item preparation (including any
necessary disassembly/assembly time), troubleshooting/fault location 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. The system designations for the various
maintenance levels are shown below:
C ...... Operator or crew
O ....... Unit Maintenance
F ....... Direct Support Maintenance
L ....... Specialized Repair Activity (SRA)
H ....... General Support Maintenance
D ....... Depot Maintenance
NOTE
The "L" maintenance level is not included in column (4) of the MAC.
Functions to this level of maintenance are identified by a work time figure
in the "H" column of column (4), and an associated reference code is
used in the REMARKS column (6). This code is keyed to the remarks
and the SRA complete repair application is explained there.
Column (5), Tools and Equipment Reference Code. Column (5) specifies, by code, those common tool
sets (not individual tools), common Test, Measurement, and Diagnostic Equipment (TMDE), and special
tools, special TMDE, and support equipment required to perform the designated function. Codes are
keyed to the entries in the tools and test equipment table.
Column (6), Remarks Code. When applicable, this column contains a letter code, in alphabetic order,
which is keyed to the remarks table entries.
Explanation of Columns in the Tools and Test Equipment Requirements
Column (1) - Tool or Test Equipment Reference Code. The tool or test equipment reference code
correlates with a code used in column (5) of the MAC.
Column (2) - Maintenance Level. The lowest level of maintenance authorized to use the tool or test
equipment.
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