Maintenance Code - TM-9-4931-599-34P0006

TM 9-4931-599-34P

Code

Explanation

AO-(Assembled by

Items with these codes are not to be requested/requisitioned

Org Level)

individually. The parts that make up the assembled item mist

AF-(Assembled by

be requisitioned or fabricated and assembled at the level of

OS Level)

maintenance indicated by the source code. If the 3d position

AH-(Assembled by

code of the SMR Code authorizes you to replace the item, but

GS Level)

the source code indicates the item is assembled at a higher

AL-(Assembled by

level, order the item from the higher level of maintenance.

SRA)

AD-(Assembled by

Depot)

XA - Do not requisition an "XA"-coded item. Order its next higher assembly. (Also, refer to the NOTE below.)

XB - If an "XB" item is not available from salvage, order it using the FSCM and part number given.

XC - Installation drawing, diagram, instruction sheet, field service drawing, that is identified by manufacturer's part

number.

XD - Item is not stocked. Order an "XD"-coded item through normal supply channels using the FSCM and part number

given, if no NSN is available.

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 source coded "XA" or those aircraft support items restricted by

requirements of AR 700-42.

(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 3d position tells you the lowest maintenance level authorized to

remove, replace, and use an item. The maintenance code entered in the 3d 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 level 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.