What was found
OIL PRESSURE WARNING SWITCH UNIT IS INOPERATIVE. INTERMITTENTLY LIGHT GOES 'ON' THEN 'OFF' DURING FLIGHT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OIL PRESSURE WARNING SWITCH UNIT IS INOPERATIVE. INTERMITTENTLY LIGHT GOES 'ON' THEN 'OFF' DURING FLIGHT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.