TM 5-4310-385-23PH -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 repairedand identifies the lowest maintenance level with the capability to do complete repair (i.e., perform allauthorized repair functions.) NOTE: Some limited repair may be done on the item at a lower level ofmaintenance, if authorized by the Maintenance Allocation Chart (MAC) and SMR codes. Thisposition will contain one of the following maintenance codes.CodeApplication/ExplanationO -Organizational or (aviation unit) is the lowest level that can do complete repair of the item.F -Direct support or aviation intermediate is the lowest level that can do complete repair of theitem.H -General Support is the lowest level that can do complete repair of the item.L-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 -Nonreparable. 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 theuser 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 follows:RecoverabilityCodesApplication/ExplanationZ -Nonreparable item. When unserviceable, condemn and dispose of the item at the level ofmaintenance shown in 3d position of SMR Code.4
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