What was found
DESCENDING INTO TPA AT 11,000 FEET, ENGINE SPOOLED FROM FLIGHT IDLE, AIRCRAFT YAWED, AND NR 2 ENGINE SHUTDOWN. CAPTAIN AND FIRST OFFICER COMPLETED ECAM. DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE REPORTED THE FMU REQUIRES REPLACEMENT. REPLACED FMU IAW AMM 73-22-52. ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK. AIRCRAFT WAS GROUNDED.