# NTSB SEA02LA188: Aviat A-1B, N290AM, Arco, ID, September 8, 2002 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: September 8, 2002, 11:30 local (17:30 UTC) - Place: Arco, ID - Coordinates: 43.60361, -113.334167 - Nearby events: https://openairdocs.org/map.md?lat=43.6036&lon=-113.3342&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 8, 2003 - Report: Approved by Office Director - Parties: Boise FSDO - NTSB case key (mKey): 55892 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA02LA188 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/55892/pdf - Page: https://openairdocs.org/ntsb/SEA02LA188 ## Probable cause The pilot's inadequate compensation for wind conditions, resulting in an inadvertent ground loop. Factors include wind gusts during the period of time at which the landing took place. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water encounter with terrain/water, landing - roll - compensation for wind conditions - inadequate, pilot in command (cause) - ground loop/swerve - inadvertent, pilot in command (cause) - weather condition - gusts (contributing factor) ## Analysis The pilot, who was attempting a full stop landing on a paved runway, executed an uneventful touchdown, but during the landing roll the aircraft encountered a wind gust that lifted its left wing. Although the pilot attempted to correct the situation, he was unable to compensate for the sudden wind gust in time to keep the aircraft from entering an inadvertent ground loop. During the ground loop sequence, the left wing impacted the runway surface and sustained substantial damage. According to the pilot, there did not seem to be any malfunction of the aircraft's flight control system. ## Factual narrative On September 8, 2002, approximately 1130 mountain daylight time, the wing of an Aviat Husky A-1B, N290AM, impacted the terrain during the landing roll at Butte County Airport, Arco, Idaho. The private pilot, who was the sole occupant, was not injured, but the aircraft, which is owned and operated by the pilot, sustained substantial damage. The 14 CFR Part 91 personnel pleasure flight, which departed Driggs, Idaho, about two hours earlier, was being operated in visual meteorological conditions. No flight plan had been filed. There was no report of an ELT activation. According to the pilot, the touchdown on runway 06 was uneventful, but during the landing roll the aircraft encountered a wind gust that lifted its left wing. Although the pilot attempted to correct the situation, he was unable to compensate for the sudden wind gust in time to keep the aircraft from entering an inadvertent ground loop. During the ground loop sequence, the left wing impacted the runway surface and sustained substantial damage. According to the pilot, there did not seem to be any malfunction of the aircraft's flight control system. ## Aircraft - Registration: [N290AM](https://openairdocs.org/aircraft/N290AM), registered now, S/N 2096 (OpenAirDocs) - Reported make and model: Aviat A-1B - Registry model: [Aviat A-1B](https://openairdocs.org/model/aviat-a-1b) (registry code 2210406) (OpenAirDocs) - Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 2196 - Airframe hours: 200 - Engines: Lycoming IO-360 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Keith B. Thompson - Airworthiness certificate: Standard, Normal - Last inspection: Annual, November 30, 2001, 84 hours before - Departed: U59, Driggs, ID - Destination: AOC, Arco, ID - Airport: AOC, Butte County Airport, runway 06, 6,800 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 63; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, valid medical--no waivers/lim.; last flight review July 13, 2001; seat: front; flight hours: 864 total, 184 in this make and model, 781 as pilot in command, 78 in the last 90 days, 40 in the last 30 days, 4 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 360° at 5 knots, gusting 10 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 70 °F ## 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 20020908026769A](https://openairdocs.org/incident/20020908026769A), Sep 8, 2002: Aviat A1B, Arco, ID, Substantial damage. (-23) On landing a sudden cross wind caused the pilot to lose control of the aircraft. The left wing dug into the turf and was substantially damaged. The Arco… ## Other investigations on N290AM (1) 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. - [NTSB SEA04LA028](https://openairdocs.org/ntsb/SEA04LA028), Dec 17, 2003: Aviat A-1B (N290AM), Hailey, ID, substantial damage. Probable cause: The pilot's failure to maintain directional control of the airplane during the landing roll, which resulted in an inadvertent group loop and the collapse of the right main landing gear. 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.