As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH-DURING FLIGHT 3884 THE CREW REPORTED EXTREMELY STRONG JET FUEL FLAMES WHEN THE ANTI-ICE SYSTEM WAS ACTIVATED. THE AIRCRAFT RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NUMBER ONE ENGINE FUEL NOZZLES, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.