Small aircraft performing training maneuvers has engine quit. Emergency landing.

Attributes
ACN	236031
Time
Date	199303
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : hio
State Reference	OR
Altitude	agl bound lower : 0 agl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other landing other other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : commercial pilot : cfi
Experience	flight time last 90 days : 15 flight time total : 1850 flight time type : 65
ASRS Report	236031
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : cfi
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	other
Supplementary
Primary Problem	Aircraft

Narrative:

The event occurred during an small aircraft training flight. 2 tailwheel-qualified CFI's were on board with the front seat pilot flying to gain familiarity with teaching from the front seat. Carburetor heat was applied and the throttle closed in preparation for a power off stall at 2000 ft AGL. As the nose of the aircraft approached a stall attitude, the propeller stopped abruptly. Conditions were conducive to carburetor icing, the air temperature and dew point were 53 degrees F and 44 degrees F, respectively. These parameters plot in the region of maximum carburetor ice probability on a temperature/dew point probability chart. The throttle had been closed for approximately 10 seconds. The rear seat pilot assumed control of the airplane, selected a landing site in the hilly farmland below, unsuccessfully attempted a restart by diving the non-starter equipped airplane, and executed a landing uphill on a soft slope of approximately 10 percent grade. The gear collapsed on landing resulting in minor damage to the aircraft but no injuries to the occupants. Possible contributing factors: carburetor icing conditions. Although full carburetor heat was applied prior to closing the throttle, the heat may have been insufficient.

Original NASA ASRS Text

Title: SMA PERFORMING TRAINING MANEUVERS HAS ENG QUIT. EMER LNDG.

Narrative: THE EVENT OCCURRED DURING AN SMA TRAINING FLT. 2 TAILWHEEL-QUALIFIED CFI'S WERE ON BOARD WITH THE FRONT SEAT PLT FLYING TO GAIN FAMILIARITY WITH TEACHING FROM THE FRONT SEAT. CARB HEAT WAS APPLIED AND THE THROTTLE CLOSED IN PREPARATION FOR A PWR OFF STALL AT 2000 FT AGL. AS THE NOSE OF THE ACFT APCHED A STALL ATTITUDE, THE PROP STOPPED ABRUPTLY. CONDITIONS WERE CONDUCIVE TO CARB ICING, THE AIR TEMP AND DEW POINT WERE 53 DEGS F AND 44 DEGS F, RESPECTIVELY. THESE PARAMETERS PLOT IN THE REGION OF MAX CARB ICE PROBABILITY ON A TEMP/DEW POINT PROBABILITY CHART. THE THROTTLE HAD BEEN CLOSED FOR APPROX 10 SECONDS. THE REAR SEAT PLT ASSUMED CTL OF THE AIRPLANE, SELECTED A LNDG SITE IN THE HILLY FARMLAND BELOW, UNSUCCESSFULLY ATTEMPTED A RESTART BY DIVING THE NON-STARTER EQUIPPED AIRPLANE, AND EXECUTED A LNDG UPHILL ON A SOFT SLOPE OF APPROX 10 PERCENT GRADE. THE GEAR COLLAPSED ON LNDG RESULTING IN MINOR DAMAGE TO THE ACFT BUT NO INJURIES TO THE OCCUPANTS. POSSIBLE CONTRIBUTING FACTORS: CARB ICING CONDITIONS. ALTHOUGH FULL CARB HEAT WAS APPLIED PRIOR TO CLOSING THE THROTTLE, THE HEAT MAY HAVE BEEN INSUFFICIENT.

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.