Individually Owned: 150,657
Corporate Owned: 137,281
Lee's Summit Muni Airport
Aircraft Accident/Incident Report
Lee's Summit, Missouri 64064
Saturday, June 24, 2006 8:00 CDT
NTSB Narrative Summary Released at Completion of Accident
The twin engine airplane descended to ground impact following a loss of engine power while operating in the traffic pattern. Witnesses reported that the pilot took off and remained in the traffic pattern. He executed a low pass over the departure runway about 200 feet above ground level. The witnesses reported that during the low approach, the engines did not sound normal and described them as "out of synch" and "missing." One witness stated, "it sounded like one engine was spitting and coughing. . . . [The pilot] turned a left crosswind just south of runway 11/29 and shortly after, it sounded like the engine quit. One engine was still running though." The witnesses stated that the airplane turned to a left crosswind and subsequently left downwind. They noted that the airplane appeared to be descending as it was established on downwind. One witness stated that as the airplane reached a point abeam the airport terminal building on downwind, it "pitched up and snapped hard to the right and then went into a downward spiral." Another witness stated that "as the plane got lower, it was just above the tree line but still in sight. Suddenly the aircraft rolled over and headed straight for the ground." A post accident inspection revealed no anomalies consistent with a pre-impact failure.
NTSB Probable Cause Narrative
The pilot's failure to maintain airspeed while operating in the traffic pattern after the loss of power in one engine, resulting in an inadvertent stall/spin. An additional cause was the loss of engine power in one of the two engines for undetermined reasons.
Event Information
| Type of Event | Accident |
| Event Date | 6/24/2006 |
| Event Day of the Week | Saturday |
| Time of Event | 800 |
| Event Time Zone | Central Daylight Time |
| Event City | Lee's Summit |
| Event State | MISSOURI |
| Event Country | -- |
| Zipcode of the event site | 64064 |
| Event Date Year | 2006 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 385720N |
| Event Location Longitude | 0942217W |
| Event Location Airport | Lee's Summit Muni |
| Event Location Nearest Airport ID | LXT |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0.25 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 1004 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 753 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 270 |
| Weather Observation Facility ID | LXT |
| Elevation of weather observation facility | 1004 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 22 |
| Dew Point at event time (in degress fahrenheit) | 18 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30.17 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 21428 |
| NTSB Notification Source | FAA-ACE-ROC |
| NTSB Notification Date | Jun 24 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | May 29 2007 12:24PM |
| User who most recently changed record | NTSB\lema |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | FAA-Kansas City FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N36CZ |
| NTSB Number | CHI06LA164 |
| Missing Aircraft Indicator | -- |
| 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 | Miller |
| Aircraft Model | Zenair Cricket MC-12 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 12-0036 |
| Certified Max Gross Weight | -- |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | Yes |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 1 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Conditional |
| Date of Last Inspection | May 1 2006 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 47.6 |
| ELT Installed | -- |
| ELT Activated | -- |
| ELT Aided Location of Event Site | -- |
| ELT Type | -- |
| Aircraft Owner Name | Fred J. Ninneman |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Kansas City |
| Aircraft Owner State | MO |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 64133 |
| Operator is an individual? | Yes |
| Operator Name | -- |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | -- |
| Operator State | -- |
| Operator Country | -- |
| Operator Zip code | -- |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| Certified for Part 133 or 137 Operation | -- |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | LXT |
| Departure City | Lee's Summit |
| Departure State | MO |
| Departure Country | USA |
| Departure Time | 745 |
| 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 | Approach - VFR pattern - downwind |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 17 2007 9:22AM |
| User who most recently changed record | SULP |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 18 |
| Runway Length | 4015 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |