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TM 10-4930-245-13&P
Items with these codes are not to be requested/ requisitioned individually.
The puts that make up the assembled item must be requisitioned or
fabricated and assembled at the level of maintenance indicated by the
source code. H the 3rd position code of the SMR code authorizes you to
replace the item, but the source code indicates the items are assembled at
a higher level, order the item from the higher level of maintenance
XA-
Do not requisition "XA"-coded item. Order its next higher assembly. (Refer to the 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 manufacturer's part
number.
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.
(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
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.
F
-
Direct support or aviation intermediate level can remove, replace, and use the item.
H
-
General support level can remove, replace, and use the item.
L
-
Specialized repair activity can remove, replace, and use the item.
D
-
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.
C-3
AO-
(Assembled by
Unit/AVUM Level)
AF-
(Assembled by
DS/AVIM Level)
AH-
(Assembled by GS
Category)
AL-
(Assembled by SRA)
AD-
(Assembled by Depot)
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