As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT OR RIGHT PACK UNUSUALLY NOISY. FAINT SMOKE SMELL IN FLIGHT DECK AFTER LANDING. (FLIGHT 5310 - FILED CLOSED) DETERMINED LEFT PACK INOP IN REFERENCE TO CRJ 21-51-00. / DEFERRED LEFT PACK PER MEL 21-51-1B. NO MX ACTION REQ. PLACARD INSTALLED. AIRCRAFT OK FOR CONTINUED SERVICE.