As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN FLIGHT, THE RIGHT ENGINE OIL PSI CWP LIGHT CAME ON FOR 1 TO 2 SECONDS THEN WENT OUT. THE RIGHT ENGINE OIL PRESSURE GAUGE WAS ALSO AROUND 40 PSI AND FLUCTUATING 10 TO 20 PSI, PROBLEM DID NOT OCCUR WHILE ENGINE WAS FEATHERED. AIRCRAFT RETURNED TO DTW WITHOUT INCIDENT. MAINTENANCE CHECKED OIL AND SERVICED OIL LEVELS. ENTERED AS WATCH ITEM. ALL CHECKS HAVE BEEN GOOD.