As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE FROM WRI TO COF, AN ODOR WAS SENSED IN THE COCKPIT ACCOMPANIED BY A LOUD NOISE EMITTING FROM THE NUMBER THREE TURBO COMPRESSOR. THE FLIGHT CREW SECURED THE TURBO COMPRESSOR AND THE ODOR SUBSIDED. MAINTENANCE PLACED THE TURBO COMPRESSOR ON DEFERRAL AND THE AIRCRAFT WAS RETURNED TO SERVICE.