TM 10-8340-226-13&P(2) Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to USE andREPAIR support items. The maintenance codes are entered in the third and fourth positions of the SMR Codeas follows:(a) The maintenance code entered in the third position tells you the lowest maintenance level authorizedto remove, replace, and use the support item. The maintenance code entered in the third position will indicateauthorization to one of the following levels of maintenance:CodeApplication/ExplanationCCrew or operator maintenance done within unit or aviation unit maintenanceOUnit or aviation unit category can remove, replace, and use the item.FDirect support or aviation intermediate level can remove, replace, and use the item.HGeneral support level can remove, replace, and use the item.LSpecialized repair activity can remove, replace, and use the item.DDepot 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 repairedand identifies the lowest maintenance level with the capability to do complete repair (i.e., perform all authorizedrepair functions.) (NOTE: Some limited repair may be done to the item at a lower level of maintenance, ifauthorized by the Maintenance Allocation Chart (MAC) and SMR codes.) This position will contain one of thefollowing maintenance codes:CodeApplication/ExplanationOUnit or aviation unit is the lowest level that can do complete repair of the item.FDirect support or aviation intermediate is the lowest level that can do complete repairof the item.HGeneral support is the lowest level that can do complete repair of the item.LSpecialized repair activity (designate the specialized repair activity) is the lowest levelthat can do complete repair of the item.C-4
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