As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 2548 THE CREW REPORTED A NR 1 ENGINE LOW OIL PRESSURE WARNING IN FLIGHT. THE AIRCRAFT DIVERTED INTO CLE AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE NR 1 ENGINE LOW OIL PRESSURE SWITCH. OPERATIONAL CHECKS WERE GOOD.