What was found
CREW REPORTED THE APU FIRE LIGHT CAME ON WHILE IN CRUISE. NO ASSOCIATED ECAM WARNINGS. THE APU WAS OFF, AND THE APU FIRE LIGHT IS INTERMITTANT. *S/D* POST FLIGHT REPORT SHOWS ECAM WARNING APU FIRE, BUT NO FAILURE MESSAGE. APU FDU TESTED OK. LAST LEG AND PREVIOUS LEGS REPORTS SHOW NO FAULTS. APU START AND RUN NORMAL. CHECKED FIRE LOOPS IN APU COMPARTMENT AND FOUND NO DISCREPANCIES.