TM 5-6350-280-23&P
maintenance levels, appropriate work-time figures are to be shown for each level. The work-time figure represents the
average time required to restore an item (assembly, subassembly, component, module, end item, or system) to a
serviceable condition under typical field operating conditions. 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 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 Test Equipment Reference Code. Column 5 specifies, by code, those common tool sets
(not individual tools), common TMDE, and special tools, special TMDE, and special support equipment required to
perform the designated function. Codes are keyed to tools and test equipment in Section III.
B-3.6 Column 6, Remarks. When applicable, this column contains a letter code, in alphabetic order, which is keyed to
the remarks contained in Section IV.
B-4 EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III.
B-4.1 Column 1, Reference Code. The tool and test equipment reference code correlates with a code used in the MAC,
Section II, Column 5.
B-4.2 Column 2, Maintenance Level. 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, National Stock Number. The National Stock Number of the tool or test equipment.
B-4.5 Column 5. Tool Number. The manufacturer's part number, model number, or type number.
B-5 EXPLANATION OF COLUMNS IN REMARKS, SECTION IV.
B-5.1 Column 1, Remarks Code. The code recorded in Column 6, Section II.
B-5.2 Column 2, Remarks. This column lists information pertinent to the maintenance function being performed as
indicated in the MAC, Section II.
5This maintenance category is not included in Section II, column (4) of the Maintenance Allocation Chart. To
identify functions to this category of maintenance, enter a work time figure in the "H" column of Section II, column (4), and
use an associated reference code in the Remarks column (6). Key the code to Section IV, Remarks, and explain the SRA
complete repair application there. The explanatory remark(s) shall reference the specific Repair Parts and Special Tools
List (RPSTL) TM which contains additional SRA criteria and the authorized spare/repair parts.
B-3
