Maintenance Code - TM-9-4120-407-24P0017

TM 9-4120-407-24P

(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 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.

Application/Explanation

Code

C - Crew or operator maintenance done within unit/AVUM maintenance.

0 - Unit level/AVUM maintenance can remove, replace, and use the item.

F - Direct support/AVUM 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 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 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 codes.

Application/Explanation

Code

0 - Unit/AVUM is the lowest level that can do complete repair of the item.

F - Direct support/AVUM 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 - Repair restricted to designated specialized repair activity.

D - Depot is the lowest level 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.