Maintenance Code - TM-9-4120-399-24P0008

TM 9-4120-399-24P

NOTE

Cannibalization or controlled exchange, when authorized, may be used as

a source of supply for items with the above source codes, except for those

s o u r c e coded "XA" or those aircraft support items restricted by

requirements of AR 7501.

(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 positions

of the SMR code as follows:

(a) 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

Crew or operator maintenance done within organizational or aviation unit maintenance

Organizational or aviation unit category can remove, replace, and use the item.

Direct support or aviation intermediate level can remove, replace, and use the item.

General support level can remove, replace, and use the item.

Specialized repair activity can remove, replace, and use the item.

Depot level can remove, replace, and use the item.

(b) The maintenance code entered in the fourth position 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 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. This

position will contain one of the following maintenance codes.

Code

Application/Explanation

Organizational or (aviation unit) is the lowest level that can do complete repair of the item.

Direct support or aviation intermediate is the lowest level that can do complete repair of the item.

General Support is the lowest level that can do complete repair of the item.

Specialized repair activity is the lowest level that can do complete repair of the item.

Depot is the lowest level that can do complete repair of the item.

Nonreparable. No repair is authorized.

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: