As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSPECTION FOUND STRONG FUEL ODOR FROM PACKS AFTER APU START IN CABIN AND COCKPIT. THE AIRCRAFT WAS REMOVED FROM SERVICE. USING THE APU PERFORMED MULTIPLE OPERATIONAL CHECKS OF THE AIR CONDITIONING DISTRIBUTION SYSTEM IAW CRJ-700 AMM 21-51-00. THE OPERATIONAL CHECK WAS GOOD. NO ODORS DETECTED. THE AIRCRAFT WAS RETURNED TO SERVICE.