As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - FLT 4968 - FUEL SMELL IN CABIN DURING CRUISE WHEN ANTI-ICE TEST WAS PERFORMED. NR 2 ENGINE BLEED WAS CLOSED AND SMELL WENT AWAY. RAN ALL SYSTEMS AND FOUND DE-ICE FLUID IN AIR SYSTEM FROM DE-ICING A/C. RAN SYSTEM UNTIL NO MORE SMELL WAS NOTED. AIRCRAFT WAS RETURNED TO SERVICE. (M)