# NTSB SEA01LA074: Aviat A-1B, N440PS, Hagerman, ID, April 17, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: April 17, 2001, 11:00 local (17:00 UTC) - Place: Hagerman, ID - Coordinates: 42.809455, -114.909683 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.8095&lon=-114.9097&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report October 17, 2001 - Report: Approved by Office Director - Parties: FAA - Boise FSDO - NTSB case key (mKey): 52094 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA01LA074 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52094/pdf - Page: https://openairdocs.org/ntsb/SEA01LA074 ## Probable cause The pilot's failure to maintain proper runway alignment during an attempted go-around, resulting in an inflight collision with a wind sock. Factors were a short runway/landing area condition, the pilot's excessive airspeed on final approach, and the wind sock. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight collision with object, go-around (vfr) - terrain condition - short runway/landing area (contributing factor) - airspeed - excessive, pilot in command (contributing factor) - go-around - attempted, pilot in command - proper alignment - not maintained, pilot in command (cause) - object - wind sock/indicator (contributing factor) - altitude/clearance - not maintained, pilot in command - In flight collision with terrain/water, descent - uncontrolled ## Analysis The pilot stated that his final approach to his private airstrip was to the east. He stated that upon touchdown, he felt he was a little too fast so he executed a go-around. He stated that upon rotation, he began drifting left and struck a small windsock at the east end of the airstrip with the airplane's left wing tip. The pilot stated that the airplane then spun left and struck the ground "flat" and dug its right wing tip into the dirt. The pilot stated that no mechanical malfunction or failure was involved in the accident, and that winds were calm. The pilot reported that his airstrip was 1,000 feet long. ## Factual narrative On April 17, 2001, approximately 1100 mountain daylight time, an Aviat A-1B airplane, N440PS, was substantially damaged when it struck a wind sock and crashed during an attempted go-around at a private airstrip about 2 miles north of Hagerman, Idaho. The commercial pilot, who was the airplane's sole occupant, was not injured in the accident. The pilot reported that visual meteorlogical conditions with calm winds prevailed at the time. No flight plan was filed for the 14 CFR 91 personal flight, which departed Friedman Memorial Airport, Hailey, Idaho, about 1030. The pilot reported that his airstrip was 1,000 feet long, with a grass surface in good condition, and that his final approach was to the east. He stated that upon touchdown, he felt he was a little too fast so he executed a go-around. He stated that upon rotation, he began drifting left and struck a small windsock at the east end of the airstrip with the airplane's left wing tip. The pilot stated that the airplane then spun left and struck the ground "flat" and dug its right wing tip into the dirt. The pilot stated that no mechanical malfunction or failure was involved in the accident. ## Aircraft - Registration: [N440PS](https://openairdocs.org/deregistered/N440PS-2010-10-12), registration cancelled 2010-10-12, S/N 2078, built 2000 (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: 2078 - Airframe hours: 130 - Engines: Lycoming O-360-A1P 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Continuous airworthiness, March 22, 2001, 25 hours before - Departed: SUN, Hailey, ID - Destination: Hagerman, ID - Airport: Private Airstrip, runway 9, 1,000 × 75 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 56; injuries: none; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; last flight review January 7, 2001; seat: front; flight hours: 3,173 total, 130 in this make and model, 2,597 as pilot in command, 44 in the last 90 days, 27 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 20 statute miles - Lowest ceiling: none - Temperature: 55 °F 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.