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Page Title:
EXPLANATION OF COLUMNS IN THE MAC, SECTION II. |
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 TM5-4120-384-14
B-3.
EXPLANATION OF COLUMNS IN THE MAC, SECTION II.
a.
Column 1, Group Number.
Column 1 lists functional group
code numbers, the purpose of which is to identify maintenance
significant components, assemblies subassemblies, and modules with
the next higher assembly.
End item group number shall be "00."
b.
Column 2, Component/Assembly.
Column 2 contains the names
of components, assemblies, subassemblies, and modules for which
maintenance is authorized.
c.
Column 3, Maintenance Functions.
Column 3 lists the
functions to be performed on the item listed in column 2.
(For
detailed explanation of these functions, see paragraph B-2.)
d.
Column 4, Maintenance Level.
Column 4 specifies by the
listing of a work time figure in the appropriate subcolumn(s), the
category of maintenance authorized to perform the function listed
in Column 3.
This figure represents the active time required to
perform the 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
categories, appropriate work time figures will be shown for each
category.
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
This time includes preparation
typical field operating conditions.
time (including any necessary disassembly/assembly time),
troubleshooting/fault location time, and quality assurance/quality
control 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 categories are as follows.
C.
....
.......
.
. . . . . . Operator or Crew
O.
....
......
.
. . . . . . . Organizational Maintenance
F.
....
......
.
. . . . . . . Direct Support Maintenance
H.
....
......
.
. . . . . . . General Support Maintenance
D.
. . . Depot Maintenance
.....
........
.
Column 5, Tools and Equipment.
e.
Column 5 specifies, by code,
those common tool sets (not individual tools) and special tools,
TMDE, and support equipment required to perform the designated
function.
f.
Column 6, Remarks.
Column 6 contains a note number which
shall correspond to the notes contained in Section IV.
B-3
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