As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT THE CREW REPORTED, GOT A RT RECIRC FAN INOP LIGHT ACCOMPANIED BY A STRONG PUNGENT ODOR. THE ODOR WENT AWAY WHEN BOTH RECIRC FANS WERE TURNED OFF. ALSO PULLED THE CIRCUIT BREAKER FOR THE RT RECIRC FAN. THE LT RECIRC FAN OPERATED NORMALLY ON THE GROUND AND THE RT RECIRC FAN WAS PUT ON MCO PER MEL 21-25-01A. RT RECIRC FAN WAS REPLACED IN BDL ON 020104 REF LOG E638468 ITEM 003.