MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
a. This section provides a general explanation of all maintenance and repair functions authorized at various
b. Section II designates overall responsibility for the performance of maintenance functions on the identified end
item or component. The implementation of the maintenance functions upon the end item or component will be consistent
with the assigned maintenance functions.
Section III (Special tools and test equipment) Not applicable.
d. Section IV contains supplemental instructions, explanatory notes and/or illustrations required for a particular
Explanation of Columns in Section II
a. Group Number. Column 1. The functional group is a numerical group set up on a functional basis. The
applicable functional grouping indexes (obtained from TB 750-93-1, Functional Grouping Codes) are listed on the MAC in
the appropriate numerical sequence. These indexes are normally set up in accordance with their function and proximity
to each other.
b. Functional Group. Column 2. This column contains a brief description of the components of each functional
c. Maintenance Functions. Column 3. This column lists the various maintenance functions (A through K) and
indicates the lowest maintenance category authorized to perform these functions. 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