Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Andover, Minnesota 55304
Friday, July 8, 1994 8:15 CDT
NTSB Narrative Summary Released at Completion of Accident
THE FLIGHT INSTRUCTOR AND PRIVATE PILOT WERE PRACTICING EMERGENCY PROCEDURES WHILE ON A BIENNIAL FLIGHT REVIEW. THE INSTRUCTOR REPORTED THAT HE INITIALLY REDUCED THE THROTTLE TO SIMULATE A ROUGH ENGINE, AND THEN PULLED THE MIXTURE OUT (TO THE 'OFF' POSITION)TO SIMULATE AN ENGINE FAILURE. THE PRIVATE PILOT SUBSEQUENTLY PULLED CARBURETOR HEAT TO 'ON' AND PERFORMED OTHER EMERGENCY PROCEDURES. THE INSTRUCTOR WAS SATISFIED WITH THE PILOT'S RESPONSE, AND TOLD HIM TO RESTORE THE ENGINE POWER. THE ENGINE DID NOT REGAIN POWER WHEN THE MIXTURE WAS PUSHED IN. THE INSTRUCTOR MADE AN EMERGENCY LANDING ON A NEARBY LAWN/FIELD, STRIKING OBSTRUCTIONS DURING THE LANDING ROLL. THE REPORTED TEMPERATURE IN THE AREA AT THE TIME OF THE ACCIDENT WAS 61 DEGREES AND THE DEW POINT WAS 59 DEGREES. THESE TEMPERATURES FALL WITHIN THE SEVERE ICING RANGE ON A CARBURETOR PROBABILITY CHART. THE AIRPLANE'S ENGINE WAS STARTED AND RUN AT THE ACCIDENT SITE WITHOUT ANY OBSERVED MECHANICAL DEFICIENCIES.
NTSB Probable Cause Narrative
the flight instructor's improper procedures and directives by electing to pull the mixture control to the 'off' position during simulated emergency procedures. A factor associated with the accident is the existence of weather conditions conducive to carburetor icing.
Event Information
| Type of Event | Accident |
| Event Date | 7/8/1994 |
| Event Day of the Week | Friday |
| Time of Event | 815 |
| Event Time Zone | Central Daylight Time |
| Event City | ANDOVER |
| Event State | MINNESOTA |
| Event Country | -- |
| Zipcode of the event site | 55304 |
| Event Date Year | 1994 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | |
| Event Location Nearest Airport ID | |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Pilot |
| Time of the weather observation | 845 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 160 |
| Weather Observation Facility ID | STP |
| Elevation of weather observation facility | 912 |
| Distance of event from weather observation facility (units?) | 13 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 2300 |
| Lowest Non-Ceiling Height | 1700 |
| Sky/Lowest/Cloud Conditions | Thin Broken |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 12 |
| Air Temperature at event time (in degrees celsius) | 17 |
| Dew Point at event time (in degress fahrenheit) | 14 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1199 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jul 8 1994 12:00AM |
| NTSB Notification Time | 1317 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 6 2000 11:41AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N9284U |
| NTSB Number | CHI94LA224 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 150 |
| Aircraft Series Identifier | 150 |
| Aircraft Serial Number | 15078234 |
| Certified Max Gross Weight | 1600 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Nov 16 1993 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | FLYWELL FLYING CLUB INC. |
| Aircraft Owner Street Address | 2119 VIOLET LANE |
| Aircraft Owner City | NEW BRIGHTON |
| Aircraft Owner State | MN |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 55112 |
| Operator is an individual? | -- |
| Operator Name | FLYWELL FLYING CLUB INC. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | 2119 VIOLET LANE |
| Operator City | NEW BRIGHTON |
| Operator State | MN |
| Operator Country | |
| Operator Zip code | 55112 |
| Operator Code | |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Instructional |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | ANE |
| Departure City | ANOKA |
| Departure State | MN |
| Departure Country | |
| Departure Time | 800 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Maneuvering |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |