TM5-4320-301-13&PTM08936A-13&P/1NOTECannibalization or controlled exchange, when authorized, maybe used asa source of supply for items with the above source codes, except for thosesource coded "XA" or those aircraft support items restricted by require-ments of AR 750-1.(2) maintenance codeMaintenance codes tell you the level(s) of maintenance authorized to USEand REPAIR support items. The maintenance codes are entered in the third and fourth positions of the SMRcode as follows:(a) The maintenance code entered in the third position tells you the lowest maintenance level autho-rized to remove, replace, and use an item. The maintenance code entered in the third position will indicate. .authorization to the following levels of maintenance.MaintenanceCode Application/ExplanationC - Crew or maintenance done within unit/AVUM maintenance.O - Unit level/AVUM maintenance can remove, replace, and use the item.F - Direct support/AVIM maintenance can remove, replace, and use the item.H - General support maintenance can remove, replace, and use the item.L -specialized repair activity can remove, replace, and use the item.D - depot 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 autho-rized repair functionsNOTEsome limited repair may be done on an item at a lower level of maintenance,if authorized by the Maintenance Allocation Chart and SMR codes.MaintenanceCode Application/ExplanationUnite/AVUM is the lowest level that can do complete repair of the item.O- F - Direct support/AVIM 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.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 repari is authorized. No parts or special tools are authorized for the maintenance of a “B” codedItem. However, the item may be reconditioned by adjusting, lubricating, etc., at the user level.(3)Recoverabilitycode.. Recoverability codes are assigned to items to indicate the disposition actionon unserviceable items. The recoverability code is entered in the fifth position of the SMR Code as follows:RecoverabiltyCodes Application/ExplanationZ - Nonreparable Items. When unservicable, condemn and dispose of the item at the level ofmaintenance shown in 3d position of SMR Code.O- Reparable item. When not economically reparable, condemn and dispose of the item at unitOr AVUM level.F - Reparable item. When uneconomically reparable, condemn and dispose of the item at thedirect support or AVIM level.C-3
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