A J3 cub pilot experienced a loss of engine power, making an emergency landing in a field.

Attributes
ACN	533906
Time
Date	200112
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : aln.airport
State Reference	OR
Altitude	agl single value : 500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	J3 Cub
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	cruise : level
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : multi engine pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 1460 flight time type : 910
ASRS Report	533906
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : landed in emergency condition
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

I was flying my J3 cub around the foothills of some mountains at about 500 ft AGL. I had just turned north when I lost engine power. The engine still ran, but had no power. I selected a field and landed successfully, no injuries or aircraft damage. I suspected carburetor ice, but later on the same day I attempted to restart the engine and was unsuccessful. Also there was some oil on the left side of the aircraft, outside the cowling. The engine has 16 hours since major overhaul and has run fine up to this point. As soon as the engine lost power, I applied full carburetor heat, but this was unsuccessful. The engine ran normally until suddenly it stopped making power. I was successful in landing the aircraft safely in a field, where I secured it.

Original NASA ASRS Text

Title: A J3 CUB PLT EXPERIENCED A LOSS OF ENG PWR, MAKING AN EMER LNDG IN A FIELD.

Narrative: I WAS FLYING MY J3 CUB AROUND THE FOOTHILLS OF SOME MOUNTAINS AT ABOUT 500 FT AGL. I HAD JUST TURNED N WHEN I LOST ENG PWR. THE ENG STILL RAN, BUT HAD NO PWR. I SELECTED A FIELD AND LANDED SUCCESSFULLY, NO INJURIES OR ACFT DAMAGE. I SUSPECTED CARB ICE, BUT LATER ON THE SAME DAY I ATTEMPTED TO RESTART THE ENG AND WAS UNSUCCESSFUL. ALSO THERE WAS SOME OIL ON THE L SIDE OF THE ACFT, OUTSIDE THE COWLING. THE ENG HAS 16 HRS SINCE MAJOR OVERHAUL AND HAS RUN FINE UP TO THIS POINT. AS SOON AS THE ENG LOST PWR, I APPLIED FULL CARB HEAT, BUT THIS WAS UNSUCCESSFUL. THE ENG RAN NORMALLY UNTIL SUDDENLY IT STOPPED MAKING PWR. I WAS SUCCESSFUL IN LNDG THE ACFT SAFELY IN A FIELD, WHERE I SECURED IT.

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.