Individually Owned: 151,845
Corporate Owned: 143,699
Boulder Municipal Airport
Aircraft Accident/Incident Report
Boulder, Colorado 80301
Wednesday, August 22, 2012 10:20 MDT
NTSB Narrative Summary Released at Completion of Accident
The pilot stated that he overshot the final approach to the runway and had to maneuver the airplane back to the final approach course. Because the airplane was high on the approach, he extended 30 degrees of flaps and descended at an airspeed of between 80 and 85 knots. The pilot stated that he thought that the approach was not stabilized; however, he continued the approach and landed. The pilot further stated that, during the landing roll, he thought that the airplane was being pushed by a strong tailwind and that he was unable to stop the airplane before the end of the runway. The airplane departed the runway, went down an embankment, and came to rest inverted, resulting in substantial damage to the airframe and both wings. The pilot stated that there were no preaccident mechanical malfunctions or anomalies that would have precluded normal operation.
NTSB Probable Cause Narrative
The pilot’s decision to continue the unstable approach, which resulted in a loss of control during landing and a runway excursion.
Event Information
| Type of Event | Accident |
| Event Date | 8/22/2012 |
| Event Day of the Week | Wednesday |
| Time of Event | 1020 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Boulder |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 80301 |
| Event Date Year | 2012 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 400221N |
| Event Location Longitude | 1051332W |
| Event Location Airport | Boulder Municipal Airport |
| Event Location Nearest Airport ID | KBDU |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 5288 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1051 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 80 |
| Weather Observation Facility ID | KBDU |
| Elevation of weather observation facility | 5288 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 20000 |
| Lowest Non-Ceiling Height | 12000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 15 |
| Air Temperature at event time (in degrees celsius) | 30 |
| Dew Point at event time (in degress fahrenheit) | 0 |
| Wind Direction (degrees magnetic) | 340 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.06 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KBJC 221651Z 34004KT 15SM SCT120 BKN200 30/0 |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 2 |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30587 |
| NTSB Notification Source | FAA ANM ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Dec 3 2012 1:07PM |
| User who most recently changed record | reej |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N85S |
| NTSB Number | CEN12CA564 |
| 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 | CESSNA |
| Aircraft Model | T210N |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 21063107 |
| Certified Max Gross Weight | 4000 |
| 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 | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jun 4 2012 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 5391.4 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | HELVETIC FLYER INC |
| Aircraft Owner Street Address | 2962 KALMIA AVE APT 30 |
| Aircraft Owner City | BOULDER |
| Aircraft Owner State | CO |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 80301-5924 |
| Operator is an individual? | Yes |
| Operator Name | Ulrich Hauser |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Boulder |
| Operator State | CO |
| Operator Country | USA |
| Operator Zip code | -- |
| 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 | Yes |
| Departure Airport Code | KBDU |
| Departure City | Boulder |
| Departure State | CO |
| Departure Country | USA |
| Departure Time | 900 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | KBDU |
| Destination City | Boulder |
| Destination State | CO |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Sep 6 2012 3:01PM |
| User who most recently changed record | kaij |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 08 |
| Runway Length | 4100 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |