TM 9-2320-366-20-5
This time includes preparation time (including any necessary disassembly/assembly time), troubleshooting/fault location
time, and quality assurance 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 levels are as follows:
C ....................................................................................................................................... Operator or crew maintenance
O ....................................................................................................................................................Unit/Field maintenance
F ....................................................................................................................................Direct Support/Field maintenance
L .................................................................................................................................. Specialized Repair Activity (SRA)5
H .................................................................................................................. General Support/Sustainment maintenance
D ....................................................................................................................................Depot/Sustainment maintenance
e. Column 5, Tools and Test Equipment Reference Code. Column 5 specifies, by code, those common tools sets
(not individual tools), common TMDE, and special tools, special TMDE, and special support equipment required to
perform the designated functions. Codes are keyed to tools and test equipment in Section III.
f. Column 6, Remarks. When applicable, this column contains a letter code, in alphabetical order, which is keyed to
the remarks contained in 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 Level. 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.
d. Column 4, National Stock Number. The National Stock Number of tool or test equipment.
e. Column 5, Tool Number. The manufacturer's part number, model number, or type number.
B-5. Explanation of Columns in Remarks, Section IV.
a. Column 1, Remarks Code. The code recorded in column 6, Section II.
b.Column 2, Remarks. This column lists information pertinent to the maintenance function being performed as
indicated in the MAC, Section II.
5
This 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.
