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 RED CAS MESSAGE IN FLIGHT. CREW DIVERTED AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED LEFT ENGINE, REMOVED AND REPLACED CARBON SEALS FOR LEFT ATS (AIR TURBINE STARTER), IDG (INTEGRATED DRIVE GENERATOR) AND EDP (ENGINE DRIVEN PUMP) AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT RELEASED FOR SERVICE.