# NTSB WPR09CA433: Swalley Mark H CH 701 SP, N701V, Bremerton, WA, September 7, 2009 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: September 6, 2009, 18:26 local (Sep 7, 2009, 01:26 UTC) - Place: Bremerton, WA - Coordinates: 47.490001, -122.764724 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=47.4900&lon=-122.7647&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Defining event: [Taxi-to runway: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report October 19, 2009 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 74666 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR09CA433 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/74666/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=74666 - Page: https://openairdocs.org/ntsb/WPR09CA433 ## Probable cause The pilot's inadequate compensation for the gusty wind conditions and failure to maintain aircraft control. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters](https://openairdocs.org/ntsb-findings/01062000): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Swalley Mark H CH 701 SP, 1 case](https://openairdocs.org/ntsb-findings/01062000/cases.md?model=05622MC), [All aircraft, 1,269 cases](https://openairdocs.org/ntsb-findings/01062000/cases.md) - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Response/compensation (probable cause); cases with it: [Swalley Mark H CH 701 SP, 1 case](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=05622MC), [All aircraft, 1,199 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Swalley Mark H CH 701 SP, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05622MC), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Taxi-to runway: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Swalley Mark H CH 701 SP, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05622MC), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot said he was taxiing to runway 19 for departure. The reported winds were from 190 degrees at 18 knots gusting to 26 knots. The pilot taxied to the end of the runway after performing all the preflight checks and he turned to a downwind direction to check for landing traffic. As the airplane turned, the right wing began to rise and the airplane nosed over, bending and wrinkling both wings, the empennage, and the rudder. ## Factual narrative The pilot said he was taxiing to runway 19 for departure. The reported winds were from 190 degrees at 18 knots gusting to 26 knots. The pilot taxied to the end of the runway after performing all the preflight checks and he turned to a downwind direction to check for landing traffic. As the airplane turned, the right wing began to rise and the airplane nosed over, bending and wrinkling both wings, the empennage, and the rudder. ## Aircraft - Registration: [N701V](https://openairdocs.org/aircraft/N701V), registered now, S/N 5215, built 2007 (OpenAirDocs) - Reported make and model: SWALLEY MARK H CH 701 SP - Registry model: [Swalley Mark H CH 701 SP](https://openairdocs.org/model/swalley-mark-h-ch-701-sp) (registry code 05622MC) (OpenAirDocs) - Registry engine: [Rotax 912ULS series](https://openairdocs.org/engine/rotax-912uls-series) (registry code 55572, 4 cycle) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 5215 - Airframe hours: 222 - Engines: ROTAX 912ULS 100 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Swalley Mark H - Registered owner: Swalley Mark H - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, June 15, 2009 - Departed: PWT, Bremerton, WA - Destination: PWT, Bremerton, WA - Airport: PWT, Bremerton National Airport, runway 19, 6,000 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 47; injuries: none; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review June 23, 2009; seat: left; flight hours: 282 total, 204 in this make and model, 233 as pilot in command, 26 in the last 90 days, 8 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 200° at 21 knots, gusting 26 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 57 °F, dew point 48 °F - Altimeter: 29.95 inHg - Observed at: PWT ## 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 20090906017799A](https://openairdocs.org/incident/20090906017799A), Sep 6, 2009: Amtr CH701SP, Bremerton, WA, Substantial damage. (-23)On September 6, 2009 just before 6:30 pm the pilot of N701V completed his pre-flight and run-up then taxied into position prior to the runway line for… ## Docket (2 files) The files NTSB released with the investigation on September 17, 2009, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=74666. 1.0 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 977 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40318928&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Weather Reports and Records (item 2, .PDF, 34 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40318930&FileExtension=.PDF&FileName=Weather%20Reports%20and%20Records-Master.PDF 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.