# NTSB WPR09CA229: Siai-Marchetti SM 1019, N391RV, Novato, CA, April 24, 2009 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: April 24, 2009, 15:00 local (22:00 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) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report July 14, 2009 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 73788 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR09CA229 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/73788/pdf - Page: https://openairdocs.org/ntsb/WPR09CA229 ## Probable cause The pilot's inadequate compensation for the gusting crosswinds. Contributing to the accident was the flight instructor's failure to take timely remedial action. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: crosswind correction](https://openairdocs.org/ntsb-findings/01062030): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [All aircraft, 184 cases](https://openairdocs.org/ntsb-findings/01062030/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Response/compensation (probable cause); cases with it: [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Instructor/check pilot (probable cause); cases with it: [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Dragged wing/rotor/float/other](https://openairdocs.org/ntsb-events/093); cases with it: [All aircraft, 319 cases](https://openairdocs.org/ntsb-events/093/sequence.md) ## Analysis During the planned termination of an instructional proficiency flight in his tailwheel-equipped airplane, the pilot attempted a full-stop landing in a nearly direct crosswind that was gusting to 15 knots. During the landing roll, the pilot failed to maintain directional control and the flight instructor providing dual instruction did not take action in time to remedy the situation. The airplane therefore veered sharply off the runway surface, and during the excursion sequence its right wing contacted the ground and sustained structural damage. ## Factual narrative During the planned termination of an instructional proficiency flight in his tail wheel-equipped airplane, the pilot attempted a full-stop landing in a nearly direct crosswind that was gusting to 15 knots. During the landing roll, the pilot failed to maintain directional control, and the flight instructor providing dual instruction did not take action in time to remedy the situation. The airplane therefore veered sharply off the runway surface, and during the excursion sequence, its right wing contacted the ground and sustained structural damage. ## Aircraft - Registration: N391RV (not matched to a registry record) - Reported make and model: SIAI-MARCHETTI SM 1019 - Category: Airplane - Serial number: 045 - Engines: ALLISON 250-B15G 317 horsepower turbo prop - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Nils C. Lind - Registered owner: Plane Two LLC - Airworthiness certificate: Standard, Normal - Last inspection: AAIP, October 12, 2008 - Departed: 0Q3, Sonoma, CA - 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. - Pilot; age 53; injuries: none; private; airplane ratings: single-engine land, single-engine sea, multi-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review May 15, 2008; seat: front; flight hours: 2,789 total, 12 in this make and model, 2 in the last 24 hours - Flight instructor; age 56; injuries: none; flight instructor, airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review February 23, 2008; seat: rear; flight hours: 2,421 total, 15 in this make and model, 2,093 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 230° at 12 knots, gusting 15 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 59 °F - Altimeter: 29.98 inHg 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.