TM 10-1670-327-23&P
0098 00
Third Position. The maintenance code entered in the third position tells you the lowest
maintenance level authorized to remove, replace, and use an item. The maintenance code
entered in the third position will indicate authorization to the following levels of
maintenance:
Maintenance
Application/Explanation
Code
C-
Crew or operator maintenance done within unit/AVUM
maintenance.
O-
Unit level/AVUM maintenance can remove, replace, and
use the item.
F-
Direct support/AVIM maintenance can remove, replace,
and use the item.
H-
General support maintenance can remove, replace, and
use the item.
L-
Specialized repair activity can remove, replace, and use
the item.
D-
Depot can remove, replace, and use the item.
Fourth Position. The maintenance code entered in the fourth position tells you whether or not the item is to
be repaired and identifies the lowest maintenance level with the capability to do complete repair (perform
all authorized repair functions).
NOTE
Some limited repair may be done on the item at a lower level of maintenance, if authorized by
the Maintenance Allocation Chart (MAC) and SMR codes.
Maintenance
Application/Explanation
Code
O-
Unit/AVUM is the lowest level that can do complete repair
of the item.
F-
Direct support/AVIM is the lowest level that can do
complete repair of the item.
H-
General support is the lowest level that can do complete
repair of the item.
L-
Specialized repair activity (SRA) is the lowest level that
can do complete repair of the item.
D-
Depot is the lowest level that can do complete repair of
the item.
Z-
Nonreparable. No repair is authorized.
B-
No repair is authorized. No parts or special tools are
authorized for maintenance of "B" coded item. However,
the item may be reconditioned by adjusting, lubricating,
etc., at the user level.
0098 00-4
