MAINTENANCE ALLOCATION CHART
This section provides a general explanation of all maintenance
and repair functions authorized at various maintenance levels.
The Maintenance Allocation Chart (MAC) in Section II designates
that overall responsibility for the performance of maintenance func-
tions on the identified end item or component.
The implementation of
the maintenance functions upon the end item or component will be con-
sistent with the assigned maintenance functions.
No special tools/tests are required for maintenance function.
To determine the serviceability of an item by compar-
ing its physical,
mechanical and/or electrical characteristics with
established standards through examination.
To determine and cause corrections. to be made or to
be adjusted on instruments or test measuring and diagnostic equipment
used in precision measurement.
Consists of comparisons of two instru-
one of which is a certified standard of known accuracy, to
detect and adjust any discrepancy in the accuracy of the instrument
The act of substituting a serviceable like type part,
or module (component or assembly) for an unserviceable
The application of maintenance services or other main-
tenance actions to restore serviceability to an item by correcting
specific damage, fault, malfunction, or failure in a part, subassembly,
module (component or assembly), and item or system.
COLUMN ENTRIES USED IN THE MAC.
pose of which
and modules wi
c o m p o n e n t s ,
1, Group Number.
Column 1 lists group numbers, the pur-
is to identify components, assemblies, subassemblies,
th the next higher assembly.
2, Component Assembly.
Column 2 contains the names of
and modules for which mainten-
ance is authorized.
Column 3, Maintenance Functions.
Column 3 lists the functions
to be performed on the item listed in column 2.
(For detailed explan-
ation of these functions, see para B-2.)