Maintenance Code - TM-5-2815-231-24P0008

TM 5-2815-231-24P

Explanation

AO (Assembled by org

Items with these codes are not to be requested/requisitioned

}

AVUM

individually. The parts that make up the assembled item must be

Level)

requisitioned or fabricated and assembled at the level of

AF (Assembled by

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

DS/AVUM

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

Level)

source code indicates the items are assembled at a higher level,

AH (Assembled by GS

order the item from the higher level of maintenance.

Category)

AL (Assembled by SRA)

AD (Assembled by Depot)

Code

Explanation

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 CAGE Code 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 CAGE Code

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 750-1

(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 the following levels of maintenance.

Code

Application/Explanation

C - Crew or operator maintenance done within organizational or aviation unit maintenance.

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