0085 00-3 TM 5-5420-278-24&P 0085 00 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. 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: 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 levels of maintenance. Code Application/Explanation C –  Crew or operator maintenance done within organizational maintenance. O –  Unit level can remove, replace, and use the item. F –  Direct support level can remove, replace, and use the item. H –  General support level can remove, replace, and use the item. K –  Repair by contractor only. L –  Specialized repair activity can remove, replace, and use the item. D –  Depot level can remove, replace, and use the item. Fourth Position.  The maintenance code entered in the fourth position tells you 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. Code Application/Explanation O –   Unit is the lowest level that can do complete repair of the item. F –   Direct support is the lowest level that can do complete repair of the item. H –   General support is the lowest level that can do complete repair of the item. K –   Repair by contractor only. L –   Specialized repair activity (designate the specialized repair activity) is the lowest level that can do complete repair of the item. D –   Depot is the lowest level that can do complete repair of the item. Z –   Nonrepairable. No repair is authorized. B –   No repair is authorized. (No parts or special tools are authorized for the maintenance of a B-coded item.) However, the item may be reconditioned by adjusting, lubricating, etc., at the user level. Recoverability Code.  Recoverability codes are assigned to items to indicate the disposition action on unserviceable items. The recoverability code is entered in the fifth position of the SMR code as follows: Recoverability Code Application/Explanation Z –   Nonrepairable item. When unserviceable, condemn and dispose of the item at the level of maintenance shown in 3rd position of SMR code. O –   Reparable item. When uneconomically reparable, condemn and dispose of the item at unit level. F –   Reparable item. When uneconomically reparable, condemn and dispose of the item at the direct support level. H –   Reparable item. When uneconomically reparable, condemn and dispose of the item at the general support level. D –   Reparable item. When beyond lower level repair capability, return to depot. Condemnation and disposal of item not authorized below depot level. L –   Reparable item. Condemnation and disposal not authorized below specialized repair activity (SRA). K –   Repair by contractor only. A –   Item requires special handling or condemnation procedures because of specific reasons (e.g.; precious metal content, high dollar value, critical material, or hazardous material). Refer to appropriate manuals/directives for specific instructions.