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TM 10-4930-246-13&P
d. Column4. MaintenanceLevel.Column4 specifieseachlevelof maintenanceauthorizedtoperform each
function listed in column 3, by indicating work time required (expressed as man-hours in whole hours or decimals) in the
appropriate subcolumn. This work-time figure the active time required to perform that maintenance function at the
indicated level of maintenance. If the number or complexity of the tasks within the listed maintenance function vary at
different 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
H ....................................
General Support Maintenance
D ....................................
Depot Maintenance
e.
Column 5. Tools and 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.
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.
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 the tool or test equipment.
e. Column 5. Tool Number. The manufacturer's part number or type number.
B-5.
EXPLANATION
OF COLUMNS IN REMARKS.
a. Column 1. Remarks Code. This 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.
B-3
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