Maintenance Code - TM-9-4520-251-24P0012

TM 9-4520-251-24P

Code

Explanation

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

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

XCInstallation drawing, diagram, instruction sheet, field service drawing, that is identified by manufacturer's

part number.

XDItem 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 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 identities 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.