TM 9-6115-669-13&P
F-3.2.2 Maintenance Code. Maintenance codes tells you the level(s) of maintenance authorized to
USE and REPAIR support items. The maintenance codes are entered in the third and fourth posi-
tions of the SMR Code as follows:
F-3.2.2.1 Maintenance Code Third Position. 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 one of the fol-
lowing levels of maintenance.
Code
Application/Explanation
C
-Crew or operator maintenance done within unit, or aviation unit maintenance.
O
-Unit or aviation unit level can remove, replace, and use the item.
F
-Direct support or aviation intermediate level can remove, replace, and use the item.
H
-General support level can remove, replace, and use the item.
L
-Specialized repair activity can remove, replace, and use the item.
D
-Depot level can remove, replace, and use the item.
F-3.2.2.2 Maintenance Code Fourth Position. The maintenance code entered in the fourth posi-
tion tells whether or not the item is to be repaired and identifies the lowest, maintenance level with
the capability to do complete repair (i.e., perform all authorized repair functions). (NOTE: Some lim-
ited repair may be done on the item at the lower level of maintenance, if authorized by the Mainte-
nance Allocation Chart (MAC) and SMR codes). This position will contain one of the following
maintenance codes.
Code
O
Application/Explanation
-Unit is the lowest level that, can do complete repair of the item.
F
-Direct support or aviation intermediate 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 (designate the specialized repair activity) 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 the maintenance
of "B” coded item). However, the item may be reconditioned by adjusting, lubricating.
etc., at the user level.
F-4
