What was found
DURING TAXI OUT, STRONG FUME ODOR FILLED THE FLIGHT DECK. FO DID NOT NOTICE (BUT SAID HE HAS BAD SENSE OF SMELL) STRONGER ODOR AFTER PARKING AT GATE. SMELLED LIKE EXHAUST NOTICED ON ARRIVAL PREV FLIGHT A SMELL BUT IT WAS QUICK AND I WASN'T SURE OR WAS ABLE TO DISCERN IT WAS A SMOKE/FUME EVENT (BUT NOW RECALLING IT AS A POSSIBLE LINK). C/W SNIFFER W/C 0550-2001. C/W APU LEAK W/C A900-2001 & FOUND APU IGV ACTUATOR LEAKING FUEL. NO OTHER LEAKS NOTED. (532226). R /R APU IGV ACTUATOR IAW A319 AMM 49-23. OPS CK GOOD. NO LEAKS DETECTED. (LP: 7685886)