Narrative:

Possible loss of crank shaft seal or propeller seal -- smoke in cabin -- oil on windshield -- notified center of smoke and possible fire -- cancelled IFR -- started immediate descent to land. Engine lost 4 quarts of oil in 3 mins. Engine to be checked by maintenance before next flight to determine cause of problem. Did not declare emergency, because winona airport directly under us.

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Original NASA ASRS Text

Title: PA32 SUFFERED PARTIAL LOSS OF ENG OIL. CANCELLED IFR AND LANDED AT NEAREST SUITABLE ARPT.

Narrative: POSSIBLE LOSS OF CRANK SHAFT SEAL OR PROP SEAL -- SMOKE IN CABIN -- OIL ON WINDSHIELD -- NOTIFIED CTR OF SMOKE AND POSSIBLE FIRE -- CANCELLED IFR -- STARTED IMMEDIATE DSCNT TO LAND. ENG LOST 4 QUARTS OF OIL IN 3 MINS. ENG TO BE CHKED BY MAINT BEFORE NEXT FLT TO DETERMINE CAUSE OF PROB. DID NOT DECLARE EMER, BECAUSE WINONA ARPT DIRECTLY UNDER US.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.