As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED TO PLATFORM, ERRONEOUS OIL PRESSURE INDICATION IN THE RT ENGINE, IT SHOWED 60 PSI WITH INTERMITTENT LIGHT. THE PRESSURE RELIEF VALVE WAS ADJUSTED BUT THE DISPLAY SHOWED 8 PSI WITH ENGINES SHUTDOWN. BREAKERS WERE RESEATED, TESTED CORRECT. OIL PRESSURE TRANSMITTER WAS REPLACED IAW MM 79-33-01, BUT FAILURE CONTINUED SHOWING 11 PSI WITH ENGINES SHUTDOWN. THE TRANSMITTER WAS REPLACED AGAIN AS WELL AS SYSTEM DISPLAY PANEL IAW MM 31-61-01, TESTED CORRECT.