# NTSB ANC23LA043: Buck/Crawford/Crawford Christavia MK-1, N5075T, Anchorage, AK, June 18, 2023 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: June 17, 2023, 16:25 local (Jun 18, 2023, 00:25 UTC) - Place: Anchorage, AK · RWY 32 Lake Hood Strip - Coordinates: 61.185664, -149.96435 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=61.1857&lon=-149.9643&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Defining event: [Takeoff: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Alaska Regional Office - Parties: FAA - NTSB case key (mKey): 192408 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC23LA043 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/192408/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=192408 - Page: https://openairdocs.org/ntsb/ANC23LA043 ## Probable cause The instructor pilot’s failure to maintain directional control of the airplane during takeoff, which resulted in a wing impacting a runway light. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: crosswind correction](https://openairdocs.org/ntsb-findings/01062030): Aircraft › Aircraft oper/perf/capability · Not attained/maintained; cases with it: [Buck/Crawford/Crawford CHRISTAVIA MK-1, 1 case](https://openairdocs.org/ntsb-findings/01062030/cases.md?model=05612QU), [All aircraft, 184 cases](https://openairdocs.org/ntsb-findings/01062030/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Instructor/check pilot (probable cause); cases with it: [Buck/Crawford/Crawford CHRISTAVIA MK-1, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05612QU), [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: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Buck/Crawford/Crawford CHRISTAVIA MK-1, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05612QU), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The flight instructor reported that he was conducting tailwheel training in a tailwheel-equipped airplane. During takeoff with a left crosswind, the instructor prompted the pilot receiving training to focus on keeping left aileron control input to compensate for the crosswind during departure. During the takeoff roll the flight instructor realized the airplane had drifted to the right side of the runway. He took control of the airplane, banked the airplane left, and added left rudder, and the left wing struck a runway light, resulting in substantial damage to the wing and aileron. The flight instructor reported that there were no preaccident mechanical malfunctions or anomalies that would have precluded normal operation. ## Aircraft - Registration: [N5075T](https://openairdocs.org/aircraft/N5075T), registered now, S/N 237, built 1993 (OpenAirDocs) - Reported make and model: BUCK/CRAWFORD/CRAWFORD CHRISTAVIA MK-1 - Registry model: [Buck/Crawford/Crawford CHRISTAVIA MK-1](https://openairdocs.org/model/buck-crawford-crawford-christavia-mk-1) (registry code 05612QU) (OpenAirDocs) - Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs) - Category: Airplane - Serial number: 237 - Year built: 1993 - Airframe hours: 903 - Engines: LYCOMING O-290 SERIES 150 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, May 24, 2023, 4 hours before - Destination: PABV, Chugiak, AK - Airport: LHD, Lake Hood Airport, runway 32, 2,200 × 75 ft, gravel ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 56; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review August 1, 2021; seat: rear; restraint: 3-point; flight hours: 1,096 total, 14 in this make and model, 1,043 as pilot in command, 4 in the last 90 days, 3 in the last 30 days, 3 in the last 24 hours - Pilot; age 31; injuries: none; commercial, military; airplane ratings: single-engine land, multi-engine land; instrument ratings: powered-lift, airplane; medical: class 1, without waivers/limitations; last flight review August 26, 2022; seat: front; restraint: 3-point; flight hours: 473 total, 2 in this make and model, 11 as pilot in command, 15 in the last 90 days, 8 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: 6,000 ft overcast - Temperature: 61 °F, dew point 43 °F - Altimeter: 30.10 inHg - Observed at: PALH - METAR: PALH 180153Z AUTO 28005KT 10SM OVC060 16/06 A3010 RMK AO2 SLP192 T01610061 TSNO ## 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 20230618007869A](https://openairdocs.org/incident/20230618007869A), Jun 18, 2023: Buck/Crawford/Crawford CHRISTAVIA MK-1, Anchorage, AK, Substantial damage. During takeoff roll at lhd on runway 32, a higher than previously observed crosswind component was experienced causing the aircraft to veer right and off of… ## Docket (2 files) The files NTSB released with the investigation on October 26, 2023, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=192408. 30.5 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 30.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16207732&FileExtension=pdf&FileName=ANC23LA043%206120_Redacted-Rel.pdf - Investigative photographs (item 2, PDF, 1 page, 189 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15941001&FileExtension=pdf&FileName=ANC23LA043%20Investigative%20photographs-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.