Individually Owned: 150,657
Corporate Owned: 137,281
Falcon Field Airport
Aircraft Accident/Incident Report
Mesa, Arizona 85215
Sunday, February 7, 2010 8:40 MST
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that about 30 minutes into the 45 minute-long flight, the engine began vibrating and he maneuvered the airplane back towards the airport. As the airplane joined the downwind leg of the traffic pattern, the pilot heard a "bang," followed by the engine experiencing complete loss of engine power. Unable to land at the airport due to altitude loss, the pilot performed a forced landing in an adjacent park. During the landing sequence the airplane struck a building while the pilot attempted to avoid a pedestrian. The airplane sustained substantial damage to the right wing and forward fuselage. Examination of the radial engine revealed that one of the cylinder heads and its associated piston had become separated. The remaining internal sections of the engine sustained catastrophic damage, consistent with continued rotation after the failure of the cylinder. Half of the studs attaching the failed cylinder to the head exhibited fatigue signatures consistent with insufficient clamping pressure applied to their nuts. A full service history for the engine was not located; however, maintenance records indicated that the cylinder head had not been removed in the 11 years and 317 flight hours prior to the accident.
NTSB Probable Cause Narrative
Separation of the cylinder from the engine during cruise flight due to fatigue in the studs attaching it to the engine casing.
Event Information
| Type of Event | Accident |
| Event Date | 2/7/2010 |
| Event Day of the Week | Sunday |
| Time of Event | 840 |
| Event Time Zone | Mountain Standard Time |
| Event City | Mesa |
| Event State | ARIZONA |
| Event Country | -- |
| Zipcode of the event site | 85215 |
| Event Date Year | 2010 |
| Event Date Month | 2 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 332723n |
| Event Location Longitude | 1114325w |
| Event Location Airport | Falcon Field Airport |
| Event Location Nearest Airport ID | FFZ |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 3 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 1394 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 847 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 150 |
| Weather Observation Facility ID | KIWA |
| Elevation of weather observation facility | 1382 |
| Distance of event from weather observation facility (units?) | 10 |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 4000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 45 |
| Air Temperature at event time (in degrees celsius) | 12 |
| Dew Point at event time (in degress fahrenheit) | 10 |
| Wind Direction (degrees magnetic) | 110 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.86 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 27972 |
| NTSB Notification Source | LAX ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Feb 25 2011 6:44PM |
| User who most recently changed record | coos |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N6263D |
| NTSB Number | WPR10LA130 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | NANCHANG CHINA |
| Aircraft Model | CJ-6A |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 4732023 |
| Certified Max Gross Weight | 3087 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| 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 | Retractable |
| Aircraft, Type of Last Inspection | Conditional |
| Date of Last Inspection | Apr 9 2009 12:00AM |
| Airframe hours since last inspection | 69 |
| Airframe Hours | 2339 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | C91-A |
| Aircraft Owner Name | BDG AVIATION LLC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | MESA |
| Aircraft Owner State | AZ |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 85205-8851 |
| Operator is an individual? | Yes |
| Operator Name | Andreas Tauchmann |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Scottsdale |
| Operator State | AZ |
| Operator Country | USA |
| Operator Zip code | 85257 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| 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 | No |
| Departure Airport Code | FFZ |
| Departure City | Falcon Field |
| Departure State | AZ |
| Departure Country | USA |
| Departure Time | 805 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | FFZ |
| Destination City | Falcon Field |
| Destination State | AZ |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Feb 25 2011 6:47PM |
| User who most recently changed record | coos |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |