B-3. EXPLANATION OF COLUMNS IN THE MAC, SECTION II (Con’t).b. COLUMN 2, COMPONENT/ASSEMBLY. Column 2 contains the name of components, assemblies, subassemblies, and modules for whichmaintenance is authorized.c. COLUMN 3, MAINTENANCE FUNCTIONS. Column 3 lists the functions to be performed on the item listed in column 2.d. COLUMN 4, MAINTENANCE CATEGORY. Column 4 specifies, by the listing of a work time figure in the appropriate subcolumn(s), the categoryof maintenance authorized to perform the function listed in Column 3. This figure represents the active time required to perform that maintenancefunction at the indicated category of maintenance. If the number or complexity of the tasks within the listed maintenance function vary at differentmaintenance categories, appropriate work time figures will be shown for each category. The work time figure represents the average time requiredto restore an item (assembly, subassembly, component, module, end item, or system) to a serviceable condition under typical field operatingconditions. This time includes preparation time (including any necessary disassembly/assembly time), troubleshooting/fault location time, and qualityassurance/quality control time in addition to the time required to perform the specific tasks identified for the maintenance functions authorized in themaintenance allocation chart. The symbol designations for the various maintenance categories are as follows:C . . . . . . . . Operator or CrewO . . . . . . . . Organizational MaintenanceF . . . . . . . . . Direct Support MaintenanceH . . . . . . . . General Support MaintenanceD . . . . . . . . Depot Maintenancee. COLUMN 5, TOOLS AND EQUIPMENT. Column 5 specifies, by code, those common tool sets (not individual tools) and special tools, TMDE, andsupport equipment required to perform the designated function.f. COLUMN 6, REMARKS. This column shall, when applicable, contain a lettercode, in alphabetic order, which shall be keyed to the remarks containedin Section IV.B-4. EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.a. COLUMN 1, REFERENCE CODE. The tool and test equipment reference code correlates with a code used in the MAC, Section II, Column 5.b. COLUMN 2, MAINTENANCE CATEGORY. The lowest level of maintenance authorized to use the tool or test equipment.c. COLUMN 3, NOMENCLATURE. Name or identification of the tool or test equipment.B-3Change 4TM 9-2350-267-20
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