As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 2393 - EWR - FLIGHT CREW REPORTED STRONG ODOR WHEN PACKS ARE ON IN COCKPIT. EWR MX PERFORMED OPERATIONAL CHECK FOR PACK SYSTEM IAW EMB-145 AMM 21-51-00 AND OPERATIONAL CHECK FOR APU AND ENGINE BLEED SYSTEM IAW EMB-145 AMM 36-00-00 OPERATION CHECK GOOD. NO SMELL NOTED. ACFT WAS APPROVED TO RETURN TO SERVICE.