As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW NOTICED THE RIGHT ENGINE OIL PRESSURE INDICATION HAD DROPPED TO 27 PSI, BUT NO 'LOW PRESSURE' LIGHT. THEY TURNED BACKED TO MKE (FLT NR 1162 MKE-SBN) AND TOOK PRECAUTION TO SAVE THE ENGINE BY FEATHERING IT ON FINAL APPROACH. MX REPLACED THE RIGHT OIL PRESSURE INDICATOR AND THE OIL PRESSURE TRANSDUCER P/N NR 101-3899023-5 S/N 4614-1-73. (M)