TM 9-2350-238-24P-2Items with these codes are not to be requested/requisi-tioned individually. The parts that make up the assembleditem must be requisitioned or fabricated and assembled atthe level of maintenance indicated by the source code. Ifthe position code of the SMR code authorizes you to re-place the item, but the source code indicates the item isassembled at a higher level, order the item from the higherlevel of maintenance.XA - DO not requisition an “XA”-coded item. Order its next higher assembly. (AIso, refer to theNOTE below.)XB - If an “XB” item is not available from salvage, order it using the CAGEC and part numbergiven.XC - Installation drawing, diagram, instruction sheet, field service drawing, that is identified bymanufacturer’s part number.XD - Item is not stocked. Order an “XD”-coded item through normal supply channels using theCAGEC and part number given, if no NSN is available.NOTECannibalization or controlled exchange, when authorized, may be used as a sourceof 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(a) The maintenance code entered incodes tell you the level(s) of maintenancethe third position tells you the lowestauthorized to USE and REPAIR support items.maintenance level authorized to remove,The maintenance codes are entered in thereplace, and use an item. The maintenancethird and fourth positions of the SMR code ascode entered in the third position will indicatefollows:CodeCOFHLDauthorization to one of the following levels ofmaintenance:Application/ExplanationCrew or operator maintenance done within unit or aviation unit maintenance.Unit or aviation unit level can remove, replace, and use the item.Direct support or aviation intermediate level can remove, replace, and use theitem.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.Change 13
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