As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LEFT ENGINE OIL PRESSURE MASTER WARNING AND TRIPLE CHIME SHORTLY AFTER TAKEOFF FROM CLT. CREW RETURNED TO CLT AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED, FOUND SEAL BLOWN OUT OF LEFT ENGINE OIL PRESSURE TRANSDUCER, REMOVED AND REPLACED TRANSDUCER AND SEAL AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.