EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS, SECTION III

DRAFT

TB 9-2320-279-13-1

MAINTENANCE ALLOCATION CHART (MAC) - Continued

d. Column (4), Maintenance Level. Column 4 specifies each level of maintenance authorized to perform

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 represents 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 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operators

F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Field Level Maintenance

H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sustainment

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

*Asterisk indicates level of maintenance authorized to complete this function. No specific times

established. Times required for replacement will depend on extent of work required.

e. Column (5), Tools and Equipment Ref Code. Column 5 specifies, by code, those common tool sets (not

individual tools), common Test, Measurement, and Diagnostic Equipment, 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 Code. When applicable, this column contains a letter code, in alphabetical order,

which is keyed to the remarks contained in Section IV.

EXPLANATION OF COLUMNS IN TOOL AND TEST EQUIPMENT REQUIREMENTS,

SECTION III

a. Column (1), Tool or Test Equipment 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, model number, or type number.

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.

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