Column 3, Maintenance Function. Column 3 lists the functions to be performed on the item listed in Column
2. (For a detailed explanation of these functions, see paragraph B-2).
Column 4, Maintenance Category. Column 4 specifies, by the listing of a work time figure in the appropriate
subcolumn(s), the category of maintenance authorized to perform the function that maintenance function at
the indicated category of maintenance. If the number or complexity of task within a listed maintenance
function vary at different maintenance categories, appropriate work time figures will be shown for each
category. 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 (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 symbol designations for the various maintenance categories are as follows:
C.........Operator or crew
F.........Direct Support Maintenance
H.........General Support Maintenance
L.........Specified Repair Activity (SRA)5
Column 5, Tools and Equipment. Column 5 specifies, by code, those common tool sets (not individual tools)
and special tools, TMDE, and support equipment required to perform the designated function.
Column 6, Remarks. This column shall, when applicable, contain a letter code, in alphabetic order, which
shall be keyed to the remarks contained in Section IV.
B-4. EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.
Column 1, Reference Code. The tool and test equipment reference code correlates with a code used in the
MAC, Section II, Column 5.
5 This maintenance category is not included in Section II, column (4) of the Maintenance Allocation Chart. To identify
functions to this category of maintenance, enter a work time figure in the "H" column of Section II, column (4), and use
an associated reference code in the Remarks column (6). Key the code to Section IV, Remarks, and explain the SRA
complete repair application there. The explanatory remark(s) shall reference the specific Repair Parts and Special
Tools List (RPSTL) TM which contains additional SRA criteria and the additional spare/repair parts.