ARMY TM 9-6115-666-13&P
AIR FORCE TO 35C2-3-505-1
Unit AVUM Level)
Items with these codes are not to be requested/requisitioned individually.
The parts that make up the assembled item must be requisitioned or
DS AVUM Level)
fabricated and assembled at the level of maintenance indicated by the source
code. If the third position code of the SMR code authorizes you to replace
the item, but the source code indicates the item is assembled at a higher
level, order the item from the higher level of maintenance.
XA - Do not requisition an "XA" coded item. Order its next higher assembly. (also, refer to NOTE below.)
XB - If an "XB" item is not available from salvage, order it using the CAGEC and part number given.
XC - Installation drawing, diagram, instruction sheet, field service drawing, that is identified by manufacturer's
XD - Item is not stocked. Order an "XD" coded item through normal supply channels using the CAGEC 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.
C.3.2.2. Maintenance Code. Maintenance codes tell you the level of maintenance authorized to USE and
REPAIR support items. The maintenance codes are entered in the third and fourth positions of the SMR code
C.188.8.131.52. Maintenance Code Third Position . 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 categories of maintenance.
- Crew of operator maintenance done within organizational or aviation 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.