TM 10-5410-230-13item listed in Column 2. (For detailed explanation of these functions, see paragraph B-2.)d. Column4,MaintenanceLevel. Column 4 specifies each level of maintenance authorized to perform eachfunction listed in Column 3, by indicating work time required (expressed as man-hours in whole hours or decimals) in theappropriate subcolumn. This work-time figure represents the active time required to perform that maintenance functionat the indicated level of maintenance. If the number or complexity of the tasks within the listed maintenance functionvary at different maintenance levels, appropriate work-time figures are to be shown for each level. The work-time figurerepresents the average time required to restore an item (assembly, subassembly, component, module, end item orsystem) to a serviceable condition under typical field operating conditions. This time includes preparation time (includingany necessary disassembly/assembly time), troubleshooting/fault location time, and quality assurance time in addition tothe time required to perform the specific tasks identified for the maintenance functions authorized in the maintenanceallocation chart. The symbol designations for the various maintenance levels are as follows:C ... Operator or crew maintenanceO ... Unit maintenanceF ... Direct support maintenanceL ... Specialized Repair Activity (SRA)RH ... General support maintenanceD ... Depot maintenancee. Column5,ToolsandTestEquipmentReferenceCode. Column 5 specifies, by code, those common tool sets(not individual tools), common TMDE, and special tools, special TMDE, and special support equipment required toperform the designated function. Codes are keyed to tools and test equipment in Section III.f. Column6,Remarks. When applicable, this column contains a letter code, in alphabetical order, which is keyed tothe remarks contained in Section IV.B-4. EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.a. Column1,ReferenceCode. The tool and test equipment reference code corresponds with a code used in theMAC, Section II, Column 5.b. Column 2, Maintenance Level. The lowest level of maintenance authorized to use the tool or test equipment.c. Column 3, Nomenclature. Name or identification of the tools or test equipment.d. Column 4, National Stock Number. The National Stock Number of the tool or test equipment.e. Column 5, Tool Number. The manufacturer's part number, model number, or type number.5his maintenance level is not included in Section II, column (4) of the Maintenance Allocation Chart. Functions to this level of maintenance are identified by a work-time figure in the "H" column of Section II, column (4), and an associated reference code is used in the Remarks column (6). This code is keyed to Section IV, Remarks, and the SRA complete repair application is explained there.B-3
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