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TM 10-3835-231-23P
(2) 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:
(a) The maintenance code entered in the third position tells you the lowest maintenance
category authorized to remove, replace, and use an item. The maintenance code entered in the third
position will indicate authorization to one of the following categories of maintenance.
Code
Application/Explanation
C - Crew or operator maintenance done within unit or aviation unit maintenance.
O - Unit or aviation unit category can remove, replace, and use the item.
F - Intermediate Direct support or aviation intermediate category can remove, replace, and use the item.
H - Intermediate General support level can remove, replace, and use the item.
L - Specialized repair activity can remove, replace, and use the item.
D - Depot category can remove, replace, and use the item.
(b) The maintenance code entered in the fourth position tells you whether or not the item is to be
repaired and identifies the lowest maintenance category with the capability to do complete repair (i.e., perform
all authorized repair functions). (NOTE: Some limited repair may be done on the item at a lower category of
maintenance, if authorized by the Maintenance Allocation Chart (MAC) and SMR codes.) This position will
contain one of the following codes.
Code
Application/Explanation
O - Unit or aviation unit is the lowest category that can do complete repair of the item.
F - Intermediate Direct support or aviation intermediate is the lowest category that can do complete repair of
the item.
H - Intermediate General support is the lowest category that can do complete repair of the item.
L - Repair restricted to designated specialized repair activity.
D - Depot is the lowest category that can do complete repair of the item.
Z - Non-repairable. 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.
(3) Recoverability Code. Recoverability codes are assigned to items to indicate the disposition action on
unserviceable items. The recoverability code is entered in the fifth position of the SMR Code as follows.
Recoverability
Definition
Codes
Z - Non-repairable item. When unserviceable, condemn and dispose of the item at the category of
maintenance shown in third position of SMR Code.
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