# NTSB SEA07CA151: Cirrus Design SR22, N171SR, Novato, CA, June 10, 2007 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: June 10, 2007, 14:15 local (21:15 UTC) - Place: Novato, CA - Coordinates: 38.143611, -122.556114 - Nearby events: https://openairdocs.org/map.md?lat=38.1436&lon=-122.5561&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 3 uninjured - Status: Completed, report August 30, 2007 - Report: Approved by Office Director - Parties: Oakland Flight Standards District Office - NTSB case key (mKey): 65949 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA07CA151 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/65949/pdf - Page: https://openairdocs.org/ntsb/SEA07CA151 ## Probable cause The instructor's failure to maintain directional control during landing. A contributing factor was the wind gusts. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - flare/touchdown - weather condition - gusts (contributing factor) - directional control - not maintained, pilot in command(cfi) (cause) - On ground/water encounter with terrain/water, landing - roll - terrain condition - grass ## Analysis 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. ## Factual narrative 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. ## Aircraft - Registration: [N171SR](https://openairdocs.org/aircraft/N171SR), registered now, S/N 2422 (OpenAirDocs) - Reported make and model: Cirrus Design Corp. SR22 - Registry model: [Cirrus Design SR22](https://openairdocs.org/model/cirrus-design-sr22) (registry code 2130001) (OpenAirDocs) - Registry engine: [Continental IO-550-N](https://openairdocs.org/engine/continental-io-550-n) (registry code 17215, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 2422 - Airframe hours: 115 - Engines: Continental IO-550N 310 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Jens Dalsgaard - Registered owner: Jens Dalsgaard - Airworthiness certificate: Standard, Normal - Departed: KVGT, Las Vegas, NV - Destination: KDVO, Novato, CA - Airport: KDVO, Gnoss Field, runway 31, 3,300 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 59; injuries: none; flight instructor, private, commercial, foreign; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review April 1, 2007; seat: right; flight hours: 1,140 total, 99 in this make and model, 1,046 as pilot in command, 115 in the last 90 days, 53 in the last 30 days, 3 in the last 24 hours - Student pilot; age 43; injuries: none; student; medical: class 3, without waivers/limitations; last flight review April 1, 2007; seat: left; flight hours: 27 total, 27 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 15 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 73 °F, dew point 54 °F - Altimeter: 29.86 inHg - Observed at: KDVO ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20070610013289A](https://openairdocs.org/incident/20070610013289A), Jun 10, 2007: Cirrus SR22, Novato, CA, Substantial damage. (-23) The airplane owners [privacy data omitted] and CFI were returning from business and meetings the [privacy data omitted] had in las vegas. The owners are… From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.