MAINTENANCE ALLOCATION CHART
Section I. General
This section provides a general explanation of all maintenance and repair
functions authorized at various maintenance levels.
Section II designates overall responsibility for the performance of
maintenance functions on the identified end item or component and
the work measurement time required to perform the functions by the
designated maintenance level. The implementation of the
maintenance functions upon the end item or component will be
consistent with the assigned maintenance functions.
Section III lists the tools and test equipment required for each
maintenance function as referenced from Section II.
Explanation of Columns in Section II
Columns (1), Group Number.
Column (1) lists group numbers to
identify related components, assemblies, subassemblies and modules
with the next higher assembly.
The applicable groups are listed in
the MAC in disassembly sequence beginning with the first group
Column (2), Component/Assembly.
This column contains the noun name
of components, assemblies, subassemblies and modules for which
maintenance is authorized.
Column (3), Maintenance Functions.
This column lists the functions.
to be performed on the item listed in Column (2). The maintenance
functions are defined as follows:
To determine serviceability of an item by comparing
its physical, mechanical and/or electrical characteristics
with established standards through examination.
To verify serviceability and detect incipient failure
by measuring the mechanical or electrical characteristics of
an item and comparing those characteristics with prescribed
Operations required periodically to keep an item in
proper operation condition, i.e., to clean (decontaminated),
to preserve, to drain, to paint
lubricants, hydraulic fluids or
or to replenish fuel,
compressed air supplies.