What was found
NR 2 FUEL FLITER CLOG WOULD NOT GO AWAY AFTER QRH PROCEDURE. FOLLOWED ECAM AND QRH. DECLARED PRECAUTIONARY EMERGENCY. NR 2 ENG REMAINED AT IDLE REMAINDER OF FLIGHT. REF TSM 73-30-10, AMM 73-34-00-00, AMM 73-34-11-04, AND AMM 73-12-03-04: FOUND LIGHT STAYED ON AFTER ENGINE SHUTDOWN, WOULD EXTINGUISH WHEN DP SWITCH DISCONNECTED. R & R'D DP SWITCH, R &R D LP FUEL FILTER PRECAUTIONARY. LEAK CKS ACCOMPLISHED IAW JRH ACFT RELEASED FOR SVC THIS ITEM.