What was found
CREW REPORTED ECAM FOR AFT CARGO DOOR AT FL 1200. DECLARED EMERGENCY & DESCENDED DOWN TO FL 10000. ECAM WENT AWAY. PERFORMED POST FLIGHT REPORT AND FOUND AFT CARGO DR PROX SNSR (32WV) TGT POS. FAULT.PICS ATTACHED. INSPECTED AFT CARGO DOOR UPON ARRIVAL AND FOUND AFT CARGO DOOR LOCKED AND LATCHED CLOSED REQUESTING MEL FOR AFT CARGO DOOR INDICATION PLACED ON MEL OK TO APPLY MEL 5270CD FOR AFT CARGO DOOR INDICATIONS INOP *DM* RECOMMEND TSM 32-31-00-810-886-A FOR INITIAL T/S. POSSIBLE CAUSE PROX SW (32WV) ATTACHED ON M/L. REPLACED AFT CARGO COMPT DOOR PROX S/W 32WV.OPS TEST NORMAL.ECAM DOOR PAGE INDICATION NORMAL.REF.TSM 32-31-00-810-886-A.