As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CLIMB, THE RED MASTER WARNING LIGHT ILLUMINATED FLASHING WITH THE RT ENG LO OIL PRESS ANNUNCIATOR. THE OIL PRESS GAUGE READ BELOW THE RED LINE NEAR ZERO. THE INDICATION LASTED LESS THAN 10 SECONDS, AFTER 10 SECONDS ALL INDICATIONS REMAINED GREEN UNTIL LANDING AT DIVERSION AIRPORT. RT OIL PRESS AROUND 100 PSI WHEN LEVEL CRUISE.