As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED STRONG SMELL OF FUEL ON DESCENT AFTER SWITCHING PACK BLEED AIR TO APU. MAINTENANCE INSPECTED AND FOUND WATER SEPARATOR COALESCER CONTAMINATED. MAINTENANCE CLEANED COALESCER AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.