As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A NR 1 ENGINE LOW OIL PRESSURE CAS MESSAGE IN FLIGHT. THE CREW FOLLOWED QRH PROCEDURES, DIVERTED TO CHO AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FOUND OIL COMING FROM THE ENGINE GANG DRAIN. MAINTENANCE REPLACED O-RINGS TO THE IDG, EDP AND STARTER. MAINTENANCE PROPERLY SERVICED THE ENGINE OIL. OPERATIONAL CHECKS WERE PERFORMED. AIRCRAFT WAS RELEASED FOR SERVICE.