Off airport landing -- pilot loses power and while the engine does not quit he is forced to land sho...

Attributes
ACN	313266
Time
Date	199508
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : arb
State Reference	MI
Altitude	msl bound lower : 1700 msl bound upper : 1700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : arb
Operator	general aviation : instructional
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 2 flight time total : 150 flight time type : 140
ASRS Report	313266
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Level flight at 1700 ft MSL, sudden loss of power. Engine remained running, not responsive to throttle. Best glide speed established, checked: master switch on, magnetos both on, fuel on, carburetor heat on, mixture rich. Engine still did not respond to throttle. Arb control tower advised current wind from 180 degrees, emergency equipment alerted. Field idented plowed north to south. 30 degrees flaps deployed, landing in field uneventful. No damage to airplane, no injuries to passenger. On ground arb control tower advised safe landing, cancel equipment. FAA notified, mechanic took photos and idented no problems with aircraft, mechanic started and ran aircraft on ground. Cause of power loss not idented, suspected carburetor ice or vapor lock or other heat and humidity related problem. Outside air temperature 85 degrees F, relative humidity approximately 70 percent.

Original NASA ASRS Text

Title: OFF ARPT LNDG -- PLT LOSES PWR AND WHILE THE ENG DOES NOT QUIT HE IS FORCED TO LAND SHORT OF THE ARPT.

Narrative: LEVEL FLT AT 1700 FT MSL, SUDDEN LOSS OF PWR. ENG REMAINED RUNNING, NOT RESPONSIVE TO THROTTLE. BEST GLIDE SPD ESTABLISHED, CHKED: MASTER SWITCH ON, MAGNETOS BOTH ON, FUEL ON, CARB HEAT ON, MIXTURE RICH. ENG STILL DID NOT RESPOND TO THROTTLE. ARB CTL TWR ADVISED CURRENT WIND FROM 180 DEGS, EMER EQUIP ALERTED. FIELD IDENTED PLOWED N TO S. 30 DEGS FLAPS DEPLOYED, LNDG IN FIELD UNEVENTFUL. NO DAMAGE TO AIRPLANE, NO INJURIES TO PAX. ON GND ARB CTL TWR ADVISED SAFE LNDG, CANCEL EQUIP. FAA NOTIFIED, MECH TOOK PHOTOS AND IDENTED NO PROBS WITH ACFT, MECH STARTED AND RAN ACFT ON GND. CAUSE OF PWR LOSS NOT IDENTED, SUSPECTED CARB ICE OR VAPOR LOCK OR OTHER HEAT AND HUMIDITY RELATED PROB. OUTSIDE AIR TEMP 85 DEGS F, RELATIVE HUMIDITY APPROX 70 PERCENT.

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.

Off airport landing -- pilot loses power and while the engine does not quit he is forced to land short of the airport.