As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4236 - DURING CLIMB-OUT, CREW NOTICED BOTH RT AND LT ENGINE OIL PRESSURE INDICATOR IN 'YELLOW' ARC. CREW ELECTED TO RETURN TO FIELD, AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. OUT STATION MAINTENANCE SERVICED BOTH LT AND RT ENGINES WITH OIL IAW MM 12-00-00. AIRCRAFT RETURNED TO SERVICE.