What was found
AIRCRAFT WAS GROUNDED: INBOUND FLIGHT ATTENDANTS REPORTED THAT ON THE DECENT IN THE KEY WEST BELOW 10,000 FT THEY SMELT A VERY STRONG OILY, CAR GARAGE, MUSTY SOCK ODOR SMELL ONE OF THEM FELT FLUSH THE OTHER ONE BEGAN TO GET SYMPTOMS OF A HEADACHE. DURING PRE-FLIGHT THEY REPORTED THIS AND SAID THE INBOUND CAPTAIN ALSO SMELT SOMETHING. ALSO THEY WERE REPORTED THEY WERE SMELLING THE ODOR AGAIN DURING PREFLIGHT WE HAD THE APU AND BLEEDS ON BUT THEY WOULD HAVE BEEN OFF FOR THE ARRIVAL. **SUPPLEMENTAL REPORT FOR AALA202602129663 SUBMITTED. 2/11/26 BY CLT**(CLOSED) MAINTENANCE FOUND FCU LEAKING AND REPLACED IAW AMM 49-32-11.