MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
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. 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.
Section IV contains supplemental instructions, explanatory notes and/or illustrations required for a
particular maintenance function.
C-2. Explanation of Columns in Section II.
Group Number. Column 1. The assembly group is a numerical group assigned to each assembly
in a top down breakdown sequence. The applicable assembly groups are listed on the MAC in
disassembly sequence beginning with the first assembly removed in a top down disassembly
Assembly Group Column 2. This column contains a brief description of the components of each
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 - Unit maintenance
F - Direct support maintenance
H - General support maintenance
D - Depot maintenance
The maintenance functions are defined as follows:
A - Inspect. To determine serviceability of an item by comparing its physical, mechanical, and electrical
characteristics with established standards.
B - Test. To verify serviceability and to detect electrical or mechanical failure by use of test equipment.