TM 10-7310-281-13&PMODERN BURNER UNIT (MBU)0039 00REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL)0039 00-3NOTE!Cannibalization or controlled exchange, when authorized, may be used as a source of supply foritems with the above source codes, except for those source coded "XA" or those aircraft supportitems restricted by requirements of AR 750-1.Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to use and repair supportitems. 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 levelauthorized to remove, replace, and use the support item. The maintenance code entered in the third position willindicate authorization to one of the following levels of maintenance.MaintenanceCodeApplication/ExplanationCCrew or operator maintenance done within unit/AVUM maintenance.OUnit level/AVUM maintenance can remove, replace, and use the item.FDirect support/AVIM maintenance can remove, replace, and use the item.HGeneral support maintenance 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.Fourth Position. 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 on the item at a lower level of maintenance, if authorized by theMaintenance Allocation Chart (MAC) and SMR codes.)
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