Maintenance Code - TM-9-2350-256-24P-20011

TM 9-2350-256-24P-2 C01

Code

Explanation

AO- (Assembled by

Org/AVUM Level)

AF- (Assembled by GS

Items with these codes are not to be requested/requisitioned individually. The

Category)

parts that make up the assembled item must be requisitioned or fabricated and

AH- (Assembled by

assembled at the level of maintenance indicated by the source code. If the 3

SRA)

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

AL- (Assembled by

indicates the item is assembled at a higher level, order the item from the higher level

SRA)

of maintenance.

AD- (Assembled by

Depot)

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

below.)

If an `XB' item is not available from salvage, order it using the CAGEC and part number given.

Installation drawing, diagram, instruction sheet, field service drawing, that is identified by

manufacturer's part number.

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 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 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 unit or aviation unit maintenance.

- Unit 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 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 maintenance

codes.