Narrative:

I was in cruise flight at 11000 ft MSL and experienced a sudden loss of oil pressure. I cruised to a landing on an oil well service road, without damage to the property and with no injuries. The following day an a&P was brought to the plane and it was determined there was a collapsed breather hose which caused back pressure to the engine and subsequent loss of oil through a seal. After fixing the line and adding oil to the engine, several static run-ups were made and aircraft was determined to be airworthy and was flown out to the lander, wy, airport. Another a&P examined the aircraft and determined it airworthy for flying and the aircraft was flown by me to its home base of rnm. This entire event was simply an off airport landing with no damage and no injuries. First indication of problem was a cycling of the constant speed propeller. Primary training paid off -- I achieved best glide speed, chose appropriate landing site, flew directly there and landed.

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Original NASA ASRS Text

Title: AN RV-6 PLT MAKES AN EMER LNDG ON AN OIL WELL SVC ROAD WHEN HE LOSES ALL OF HIS OIL NEAR BOY, WY.

Narrative: I WAS IN CRUISE FLT AT 11000 FT MSL AND EXPERIENCED A SUDDEN LOSS OF OIL PRESSURE. I CRUISED TO A LNDG ON AN OIL WELL SERVICE ROAD, WITHOUT DAMAGE TO THE PROPERTY AND WITH NO INJURIES. THE FOLLOWING DAY AN A&P WAS BROUGHT TO THE PLANE AND IT WAS DETERMINED THERE WAS A COLLAPSED BREATHER HOSE WHICH CAUSED BACK PRESSURE TO THE ENG AND SUBSEQUENT LOSS OF OIL THROUGH A SEAL. AFTER FIXING THE LINE AND ADDING OIL TO THE ENG, SEVERAL STATIC RUN-UPS WERE MADE AND ACFT WAS DETERMINED TO BE AIRWORTHY AND WAS FLOWN OUT TO THE LANDER, WY, ARPT. ANOTHER A&P EXAMINED THE ACFT AND DETERMINED IT AIRWORTHY FOR FLYING AND THE ACFT WAS FLOWN BY ME TO ITS HOME BASE OF RNM. THIS ENTIRE EVENT WAS SIMPLY AN OFF ARPT LNDG WITH NO DAMAGE AND NO INJURIES. FIRST INDICATION OF PROB WAS A CYCLING OF THE CONSTANT SPD PROP. PRIMARY TRAINING PAID OFF -- I ACHIEVED BEST GLIDE SPD, CHOSE APPROPRIATE LNDG SITE, FLEW DIRECTLY THERE AND LANDED.

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.