Matching one instance to Another Field to Find all matches

I have a file in which the data looks like below. For example, the  FL34-16264B52-CD goes out on ECN0867229 in the CD event out field and comes back In as FL34-16264B52-CE on ECN0867229. If you look at both part lines they both have the same usage  in the CD SFI Assembly field within this ECN. I'm trying to detect within any ECN (this example I'm using ECN0867229). I want to compare my  CD SFI Assembly out fields and in fields within an ECN  and detect change.  If anyone can help me or at least point me in the right direction it would be appreciated. 

Thank you, 

Count(CD_SFI_ASSEMBLY)

NO_PART_PREFIXNO_PART_BASENO_PART_SUFFIXCount(CD_SFI_ASSEMBLY)CD_EVENT_INCD_EVENT_OUTNO_ECNCD_SFI_ASSEMBLY