# NTSB WPR10CA358: Aviat A-1B, N115XT, Casper, WY, July 19, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 19, 2010, 08:30 local (14:30 UTC) - Place: Casper, WY - Coordinates: 42.907775, -106.464164 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.9078&lon=-106.4642&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report December 20, 2010 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 76683 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10CA358 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76683/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76683 - Page: https://openairdocs.org/ntsb/WPR10CA358 ## Probable cause The pilot's failure to maintain directional control during landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Aviat A-1B, 21 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=2210406), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Aviat A-1B, 33 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2210406), [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. - [Landing-flare/touchdown: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Aviat A-1B, 24 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=2210406), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-flare/touchdown: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Aviat A-1B, 9 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=2210406), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-flare/touchdown: Dragged wing/rotor/float/other](https://openairdocs.org/ntsb-events/093); cases with it: [Aviat A-1B, 6 cases](https://openairdocs.org/ntsb-events/093/sequence.md?model=2210406), [All aircraft, 319 cases](https://openairdocs.org/ntsb-events/093/sequence.md) ## Analysis The pilot reported that after two uneventful wheel landings in a tailwheel-equipped airplane he attempted a three point landing. During touchdown the pilot reported he was “carrying too much speed” and “lost control” of the airplane. The airplane exited the right side of the runway and ground looped. During the accident sequence, the left wing struck the ground and was substantially damaged. The pilot reported no mechanical failures or malfunctions with the airframe or engine prior to the accident. At the time of the accident, the airport’s automated weather system reported the wind as calm. ## Factual narrative The pilot reported that after two uneventful wheel landings in a tailwheel-equipped airplane he attempted a three point landing. During touchdown the pilot reported he was “carrying too much speed” and “lost control” of the airplane. The airplane exited the right side of the runway and ground looped. During the accident sequence, the left wing struck the ground and was substantially damaged. The pilot reported no mechanical failures or malfunctions with the airframe or engine prior to the accident. At the time of the accident, the airport’s automated weather system reported the wind as calm. ## Aircraft - Registration: [N115XT](https://openairdocs.org/aircraft/N115XT), registered now, S/N 2216, built 2002 (OpenAirDocs) - Reported make and model: AVIAT AIRCRAFT INC A-1B - Registry model: [Aviat A-1B](https://openairdocs.org/model/aviat-a-1b) (registry code 2210406) (OpenAirDocs) - Registry engine: [Lycoming O-360 series](https://openairdocs.org/engine/lycoming-o-360-series) (registry code 41575, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 2216 - Airframe hours: 630 - Engines: LYCOMING O-360 SERIES 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Standard, Normal - Last inspection: Annual, September 23, 2009, 110 hours before - Departed: KCPR, Casper, WY - Destination: KCPR, Casper, WY - Airport: KCPR, Casper/Natrona County Intl., runway 03, 10,165 × 150 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 47; injuries: none; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review February 6, 2009; seat: front; flight hours: 1,675 total, 76 in this make and model, 1,558 as pilot in command, 15 in the last 90 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 57 °F, dew point 43 °F - Altimeter: 30.09 inHg - Observed at: KCPR ## 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 20100719041779A](https://openairdocs.org/incident/20100719041779A), Jul 19, 2010: Aviat Aircr A-1B, Casper, WY, Substantial damage. Airman was conducting stop and go takeoffs and landings for tailwheel practice on runway 3 at the Natrona County International Airport. Completed two wheel… ## Docket (1 files) The files NTSB released with the investigation on September 16, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76683. 401 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 401 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334847&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.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.