As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STATUS MESSAGE ENGINE OIL PRESSURE INDICATED 138. REPLACED LOW OIL PRESSURE WARNING SWITCH, RAN LT ENG PRESSURE AT IDLING INDICATION, NO HELP. REPLACED SCAVENGE OIL PUMP. RAN ENGINE AND ADJUSTED OIL PRESSURE THREE TURNS CLOCKWISE. LEAK AND OPS CHECKS OKAY.