Engine failure due to ruptured oil line results in off airport landing for homebuilt single.

Attributes
ACN	761467
Time
Date	200711
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	general aviation : personal
Make Model Name	Experimental
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot oversight : pic
ASRS Report	761467
Events
Anomaly	aircraft equipment problem : critical ground encounters other
Independent Detector	other flight crewa
Resolutory Action	flight crew : landed in emergency condition
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

3 mins after departure from ZZZ; cockpit filled with smoke. An attempt was made to immediately return to the runway. The oil pressure fluctuated to zero and the engine seized within 20 seconds. The decision was made to execute an off-airport landing in a field. Subsequent inspection of the engine indicated a failed oil line to the oil filter assembly. Loss of all engine oil on the exhaust system was responsible for engine failure. No evidence was present during the annual condition inspection to indicate the imminent failure of the hose. Positive crankcase pressure had to be introduced to locate the failed hose. Post aircraft incident/accident.

Original NASA ASRS Text

Title: ENGINE FAILURE DUE TO RUPTURED OIL LINE RESULTS IN OFF ARPT LNDG FOR HOMEBUILT SINGLE.

Narrative: 3 MINS AFTER DEP FROM ZZZ; COCKPIT FILLED WITH SMOKE. AN ATTEMPT WAS MADE TO IMMEDIATELY RETURN TO THE RWY. THE OIL PRESSURE FLUCTUATED TO ZERO AND THE ENG SEIZED WITHIN 20 SECONDS. THE DECISION WAS MADE TO EXECUTE AN OFF-ARPT LNDG IN A FIELD. SUBSEQUENT INSPECTION OF THE ENG INDICATED A FAILED OIL LINE TO THE OIL FILTER ASSEMBLY. LOSS OF ALL ENG OIL ON THE EXHAUST SYS WAS RESPONSIBLE FOR ENG FAILURE. NO EVIDENCE WAS PRESENT DURING THE ANNUAL CONDITION INSPECTION TO INDICATE THE IMMINENT FAILURE OF THE HOSE. POSITIVE CRANKCASE PRESSURE HAD TO BE INTRODUCED TO LOCATE THE FAILED HOSE. POST ACFT INCIDENT/ACCIDENT.

Data retrieved from NASA's ASRS site as of January 2009 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.