Gnoss Field Airport
Aircraft Accident/Incident Report

Novato, California 94945
Sunday, June 10, 2007 14:15 PDT

NTSB Narrative Summary Released at Completion of Accident

As the airplane approached the destination airport, the two pilots, a student pilot and a certified flight instructor (CFI), checked the automated weather observation system and noted that the winds were from 210 degrees at 15 knots. The aircraft entered the traffic pattern for runway 31 and prepared to land. Other aircraft landing on the same runway reported over the common traffic advisory frequency that there was "pretty much a direct cross wind" and "wind shear over the hills when turning base to final." The student pilot flew a stable approach with close supervision from the CFI. While flaring, the aircraft was "hit by a massive wind gust that pushed the plane onto the runway and caused a bounce." The CFI took control of the aircraft and "tried to save the landing." The CFI applied full throttle with the intention of going around, but was not able to get the airplane into the air. The aircraft then veered to the right, cleared a ditch that ran parallel to the runway and came to a stop in the grass with the gear collapsed.

NTSB Probable Cause Narrative

The instructor's failure to maintain directional control during landing. A contributing factor was the wind gusts.

Event Information

Type of Event Accident
Event Date 6/10/2007
Event Day of the Week Sunday
Time of Event 1415
Event Time Zone Pacific Daylight Time
Event City Novato
Event State CALIFORNIA
Event Country --
Zipcode of the event site 94945
Event Date Year 2007
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 380837N
Event Location Longitude 1223322W
Event Location Airport Gnoss Field
Event Location Nearest Airport ID KDVO
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 2
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KDVO
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 7000
Sky/Lowest/Cloud Conditions Few
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) 23
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 15
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 None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 22083
NTSB Notification Source Regional Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Aug 30 2007 12:18PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N171SR
NTSB Number SEA07CA151
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 Cirrus Design Corp.
Aircraft Model SR22
Aircraft Series Identifier --
Aircraft Serial Number 2422
Certified Max Gross Weight 3400
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 115
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Jens Dalsgaard
Aircraft Owner Street Address --
Aircraft Owner City Novato
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 94949
Operator is an individual? No
Operator Name Jens Dalsgaard
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Novato
Operator State CA
Operator Country USA
Operator Zip code 94949
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) Business
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code KVGT
Departure City Las Vegas
Departure State NV
Departure Country USA
Departure Time 1115
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code KDVO
Destination City Novato
Destination State CA
Destination Country USA
Specific Phase of Flight Landing - flare/touchdown
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 23 2007 8:06PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location 31
Runway Length 3300
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --