for the maintenance functions authorized in the MAC. The symbol designations for the various maintenance levels
are as follows:
C ............... Operator or crew maintenance
O ............... Unit maintenance
F ............... Direct support maintenance
L ............... Specialized repair activity (SRA)5
H ............... General support maintenance
D ............... Depot maintenance
B-3.5 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 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) - Remarks Code. When applicable, this column contains a letter code, in alphabetical order,
which is keyed to the remarks table entries.
EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.
Column (1) Tool or Test Equipment Reference Code. The tool or test equipment reference code
correlates with a code used in the column (5), Section II of the MAC.
Column (2) - Maintenance Level. The lowest level of maintenance authorized to use the tool or test
Column (3) - Nomenclature. Name or identification of the tool or test equipment.
Column (4) - National Stock Number. The National Stock Number (NSN) of the tool or test equipment.
Column (5) - Tool Number. The manufacturers part number.
EXPLANATION OF COLUMNS IN REMARKS, SECTION IV.
Column (1) - Remarks Code. The code recorded in Column (6), Section II of the MAC.
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.