TM 10-4320-325-24P(2) Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to USE and REPAIRsupport 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 toremove, replace, and use an item The maintenance code entered in the third position will indicate authorization to one ofthe following levels of maintenanceCodeApplication/ExplanationC-Crew or operator maintenance done within organizational or aviation unit maintenanceO-Organizational or aviation unit category can remove, replace, and use the itemF-Direct support level or aviation intermediate level can remove, replace, and use the itemH-General support level can remove, replace, and use the itemL-Specialized repair activity can remove, 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 andidentifies the lowest maintenance level with the capability to do complete repair (i e , perform all authorized repairfunctions) (NOTE Some limited repair may be done on the item at a lower level of maintenance, if authorized by theMaintenance Allocation Chart (MAC) and SMR codes ) This position will contain one of the following maintenance codesCodeApplication/ExplanationO-Organizational or (aviation unit) is the lowest level that can do complete repair of the itemF-Direct support or aviation Intermediate is the lowest level that can do complete repair of the itemH-General support is the lowest level that can do complete repair of the itemL-Specialized repair activity (designate the specialized repair activity) is the lowest level that can do complete repair of the ItemD-Depot is the lowest level that can do complete repair of the itemZ-Nonreparable. No repair is authorizedB-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(3) Recoverability Code. Recoverability codes are assigned to items to indicate the disposition action onunserviceable items The recoverability code Is entered in the fifth position of the SMR code as followsRecoverabilityApplication/ExplanationCodesZ-Nonreparable item When unserviceable, condemn and dispose of the item at the level of maintenance shown in 3rd position of SMR codeO-Reparable item When uneconomically reparable, condemn and dispose of the item at organizational or aviation unit levelF-Reparable item When uneconomically reparable, condemn and dispose of the item at the direct support or aviation Intermediate level3
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