As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED A STRONG CHEMICAL SMELL THROUGHOUT AIRCRAFT WHILE AT THE GATE. BURNING NOSTRILS AND EYES EXPERIENCED BY CREW. NOTE: APU RUNNING WITH APU BLEED AND RIGHT PACK. MAINTENANCE ACCOMPLISHED J/C 03L00021001. RAN APU AND RIGHT PACK FOR FOUR HOURS. NO SMELL NOTED. REPLACED RECIRCULATION FILTERS PER J/C 03L00021001. A/C OK FOR CONTINUED SERVICE.