B-3TM 9-6115-658-13&P for the maintenance functions authorized in the MAC. The symbol designations for the various maintenance levelsare as follows: C ............... Operator or crew maintenance O ............... Unit maintenance F ............... Direct support maintenance L ............... Specialized repair activity (SRA)5H ............... General support maintenance D ............... Depot maintenance B-3.5 Column(5)–ToolsandEquipmentReferenceCode.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 special support equipment required to perform the designated function. Codes are keyed to the entries in the tools and test equipment table. B-3.6 Column(6)-RemarksCode. When applicable, this column contains a letter code, in alphabetical order, which is keyed to the remarks table entries. B-4 EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.B-4.1 Column(1)–ToolorTestEquipmentReferenceCode. The tool or test equipment reference code correlates with a code used in the column (5), Section II of the MAC. B-4.2 Column(2)-MaintenanceLevel. The lowest level of maintenance authorized to use the tool or test equipment. B-4.3 Column(3)-Nomenclature. Name or identification of the tool or test equipment. B-4.4 Column(4)-NationalStockNumber. The National Stock Number (NSN) of the tool or test equipment.B-4.5 Column(5)-ToolNumber. The manufacturers part number. B-5 EXPLANATION OF COLUMNS IN REMARKS, SECTION IV.B-5.1 Column(1)-RemarksCode. The code recorded in Column (6), Section II of the MAC.B-5.2 Column(2)-Remarks. This column lists information pertinent to the maintenance function being performed as indicated in the MAC, Section II.5The “L” maintenance level is not included in Section II, 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.
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