AN A320 FLT CREW WAS NOT ADVISED OF POSSIBLE FOD DAMAGE DURING ENG START AND WAS ALLOWED TO TAXI; TKOF; AND FLY TO ZZZ WITH DAMAGE TO THE #2 ENG. FLT CREW INFORMED OF DAMAGE FOLLOWING DAY BY ZZZ PERSONNEL; WHEN RPTING FOR DUTY.

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UPON ARR AT ZZZ FOR OUR NEXT ASSIGNMENT; I WAS INFORMED OF ENG DAMAGE TO THE #2 ENG ON THE PLANE WE FLEW THE NIGHT BEFORE. THE OBSERVED DAMAGE WAS TO THE ACOUSTIC SHIELD AT NUMEROUS POSITIONS WITH DENTS AND PIECES MISSING. AFTER TALKING TO ACR MAINT AND THE DUTY FLT MANAGER; I WAS INFORMED THAT THEY SUSPECT A BAGGAGE SCANNER WAS INGESTED. I WAS ALSO INFORMED THAT IT WAS RPTED THAT PEOPLE SAW SPARKS COMING FROM THE #2 ENG ON TAXI OUT. NO ON EVER COMMUNICATED THAT FACT TO ME THROUGH THE 25 MINUTES BETWEEN BRAKE RELEASE AND TKOF. ALL ENG PARAMETERS AND VIBRATION ON THE AIRPLANE WERE NORMAL DURING THE FLT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED; 'THE THING THAT REALLY DISAPPOINTS AND ANGERS ME ABOUT THE WHOLE EVENT IS THAT INDIVIDUALS WITNESSED THE ENG START UP; SAW SPARKS COMING OUT OF THE ENG AND DID NOTHING. THE AIRPLANE WAS ON THE GND FOR 30 MINUTES FROM ENG START TO TKOF. NO ONE THOUGHT TO ADVISE THE CREW OF THIS INCIDENT AND THE AIRPLANE WAS FLOWN TO THE SCHEDULED DEST FOR AN OVERNIGHT LAYOVER.' IN THE MORNING; THE STATION MANAGER ADVISED THE RPTR OF R ENG DAMAGE. RPTR STATED THAT THE ACOUSTIC PANELS WERE DAMAGED AND THE ABRADABLE MATERIAL HAD PIECES BROKEN OUT. THE INLET COWLING REQUIRED REPLACEMENT.