As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FUEL PURGE TANK FOUND INSTALLED 180 DEGREES OUT OF POSITION, ALLOWING FUEL TO FLOW BACKWARDS IN TO THE BLEED AIR ENTERING INTO THE PRESSURIZATION FLOW CONTROL VALVE AND ALLOWING THE FUEL TO MIX WITH PRESSURIZED AIR ENTERING THE CABIN.