ARMY TM 9-6675-349-12&P
MARINE CORPS TM 11039A-12&P
Maintenance Code. Maintenance codes tell you the level(s) of maintenance
authorized to USE and REPAIR support items. The maintenance codes are entered
in the third and fourth positions of the SMR code as follows:
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 following levels of maintenance:
Code
Application/Explanation
C-
Crew or operator maintenance done with unit or aviation unit maintenance.
O-
Unit or aviation unit category 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.
K-
Repairable item removed or replaced at contractor's facility
The maintenance code entered in the fourth position tells whether 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 limited repair may be done on an item at a lower level of maintenance, if
authorized by the Maintenance Allocation Chart (MAC) and SMR codes. This
position will contain one of the following maintenance codes.
Code
Application/Explanation
O-
Unit or (aviation 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 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 a "B" coded
Item). However, the item may be reconditioned by adjusting, lubricating, etc., at the user level.
K-
Repairable support item. complete repair capability exists at a designated contractor's facility.
E-4
