# NTSB WPR22LA212: Aviat A-1B, N55HU, Big Creek, ID, June 10, 2022 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Class 4 · Limited · Final report - Date: June 10, 2022, 13:00 local (19:00 UTC) - Place: Big Creek, ID · Big Creek Lodge - Coordinates: 45.133243, -115.32177 - Nearby events: https://openairdocs.org/map.md?lat=45.1332&lon=-115.3218&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470) - Highest injury: Minor injuries - Injuries: 2 minor - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 105244 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR22LA212 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/105244/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=105244 - Page: https://openairdocs.org/ntsb/WPR22LA212 ## Probable cause The pilot's failure to maintain directional control of the airplane during takeoff, which resulted in a runway excursion and collision with fencing. ## 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) - [Wind: windshear](https://openairdocs.org/ntsb-findings/03034020): Environmental issues › Conditions/weather/phenomena · Ability to respond/compensate; cases with it: [Aviat A-1B, 1 case](https://openairdocs.org/ntsb-findings/03034020/cases.md?model=2210406), [All aircraft, 90 cases](https://openairdocs.org/ntsb-findings/03034020/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. - [Takeoff: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470) (defining event); cases with it: [Aviat A-1B, 23 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=2210406), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that, during departure the airplane encountered windshear and he could not maintain directional control. The airplane veered off the right side of the runway and collided with two fences. The airplane nosed over and came to rest inverted. The wings and fuselage were substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation ## Aircraft - Registration: [N55HU](https://openairdocs.org/aircraft/N55HU), registered now, S/N 2046, built 1999 (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&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 2046 - Year built: 1999 - Airframe hours: 2614.9 - Engines: Lycoming O-360-A1P 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Kaihai Corp - Airworthiness certificate: Standard, Normal - Last inspection: Annual, October 19, 2021 - Departed: U60, Big Creek, ID - Airport: U60, Big Creek Airport, runway 01, 3,550 × 110 ft, grass/turf - Equipment: Satellite tracking device, Stall warning system, Electronic flight bag or handheld device, ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 31; injuries: minor; private; airplane ratings: single-engine land; medical: class 1, without waivers/limitations; last flight review May 2, 2021; seat: front; restraint: 5-point; flight hours: 905.6 total, 654.9 in this make and model, 855.7 as pilot in command, 15.1 in the last 90 days, 9.9 in the last 30 days, 3.2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 13 knots, gusting 21 - Visibility: 10 statute miles - Lowest ceiling: 9,500 ft broken - Temperature: 73 °F, dew point 45 °F - Altimeter: 30.07 inHg - Observed at: KMYL, 36 nm away - METAR: KMYL 101851Z AUTO 21013G21KT 10SM SCT065 BKN095 23/07 A3007 RMK AO2 SLP141 T02280072 ## 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 20220610009809A](https://openairdocs.org/incident/20220610009809A), Jun 10, 2022: Aviat Aircraft Inc A-1B, Big Creek, ID, Substantial damage. The pilot in command (PIC) landed at the Big Creek Airport (U60), rolled out, taxied to the southern end of the runway, turned 180 degrees, powered back up and… ## Other investigations on N55HU (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 WPR11CA065](https://openairdocs.org/ntsb/WPR11CA065), Nov 28, 2010: Aviat A-1B (N55HU), North Bend, WA, substantial damage. Probable cause: The pilot's failure to predetermine the depth of the snow on the runway. ## Docket (2 files) The files NTSB released with the investigation on August 30, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=105244. 3.0 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 2.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14382727&FileExtension=pdf&FileName=6120%20WPR22LA212_Redacted-Rel.pdf - Photos (item 2, PDF, 2 pages, 295 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14100688&FileExtension=pdf&FileName=Damage%20Photos%20WPR22LA212-Rel.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.