As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE INSPECTION, FOUND THE COCKPIT HAS A VERY STRONG ODOR OF ROTTING FISH WHEN AIRCRAFT PACKS ARE TURNED OFF. THE AIRCRAFT WAS REMOVED FROM SERVICE. PERFORMED GENERAL VISUAL INSPECTION OF COCKPIT AND FOUND NO DISCREPANCY AT THIS TIME. THE AIRCRAFT WAS RETURNED TO SERVICE.