# NTSB CEN21LA474: Navion Navion H, N1061Y, Burlington, WI, September 16, 2021 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: September 16, 2021, 12:30 local (17:30 UTC) - Place: Burlington, WI - Coordinates: 42.690717, -88.304682 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=42.6907&lon=-88.3047&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Loss of control in flight](https://openairdocs.org/ntsb-events/240) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Central Region - Parties: Federal Aviation Administration; Milwaukee FSDO - NTSB case key (mKey): 104163 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN21LA474 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104163/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=104163 - Page: https://openairdocs.org/ntsb/CEN21LA474 ## Probable cause The pilot’s failure to maintain aircraft control during landing with a gusting crosswind that resulted in an aerodynamic stall and a hard impact on the runway. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Action: lack of action](https://openairdocs.org/ntsb-findings/02041030): Personnel issues › Action/decision · Flight crew (probable cause); cases with it: [Navion NAVION H, 1 case](https://openairdocs.org/ntsb-findings/02041030/cases.md?model=6150122), [All aircraft, 792 cases](https://openairdocs.org/ntsb-findings/02041030/cases.md) - [Performance/control parameters](https://openairdocs.org/ntsb-findings/01062000): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Navion NAVION H, 1 case](https://openairdocs.org/ntsb-findings/01062000/cases.md?model=6150122), [All aircraft, 1,269 cases](https://openairdocs.org/ntsb-findings/01062000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Loss of control in flight](https://openairdocs.org/ntsb-events/240) (defining event); cases with it: [Navion NAVION H, 1 case](https://openairdocs.org/ntsb-events/240/sequence.md?model=6150122), [All aircraft, 5,002 cases](https://openairdocs.org/ntsb-events/240/sequence.md) - [Landing: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [Navion NAVION H, 1 case](https://openairdocs.org/ntsb-events/060/sequence.md?model=6150122), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Landing: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241); cases with it: [Navion NAVION H, 1 case](https://openairdocs.org/ntsb-events/241/sequence.md?model=6150122), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md) - [Landing-flare/touchdown: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Navion NAVION H, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=6150122), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) ## Analysis The pilot reported that during his second attempt at practicing a crosswind landing, he encountered an increased crosswind, shear, and gust. To prevent the airplane from drifting off the side of the runway, he lowered the right wing into the wind when the airplane was about 4-5 ft. above the runway. The airplane then stalled and landed hard on the runway. The airplane sustained substantial damage to right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. At the time of the accident, the pilot was taking off on runway 11 with wind 170o at 12 knots with gusts to 18 knots. ## Factual narrative The private pilot of the personal flight stated that during his second attempt at practicing a crosswind takeoff and landing, he encountered an increased crosswind/gust. To prevent the airplane from drifting off the side of the runway, he lowered the right wing into the wind when the airplane was about 4-5 ft. above the runway. The airplane then stalled and experienced a hard landing on the runway that resulted in substantial damage to right wing. The pilot stated there was no mechanical malfunction/failure of the airplane. ## Aircraft - Registration: [N1061Y](https://openairdocs.org/aircraft/N1061Y), registered now, S/N NAV-4-2531, built 1969 (OpenAirDocs) - Reported make and model: NAVION Navion H - Registry model: [Navion NAVION H](https://openairdocs.org/model/navion-navion-h) (registry code 6150122) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: NAV-4-2531 - Year built: 1969 - Airframe hours: 2895.3 - Engines: Continental IO-520-B 285 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Pilot - Registered owner: Pilot - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, July 21, 2021 - Destination: Same as departure - Airport: BUU, Burlington Airport, runway 11, 4,300 × 75 ft, asphalt - Equipment: Onboard weather, Electronic flight bag or handheld device, Auto-pilot, Stall warning system, ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 64; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review August 28, 2021; seat: left; restraint: 3-point; flight hours: 480 total, 11 in this make and model, 392 as pilot in command, 11 in the last 90 days, 0 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 170° at 12 knots, gusting 18 - Visibility: 10 statute miles - Temperature: 81 °F, dew point 50 °F - Altimeter: 30.08 inHg - Observed at: BUU ## 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 20210916018049A](https://openairdocs.org/incident/20210916018049A), Sep 16, 2021: Navion NAVION H, Burlington, WI, Substantial damage. Pilot taxied from the terminal to rnwy 11. Pilot completed a run-up and received the latest ASOS. Winds were from 180 at 10KTS gusting to 15KTS. Pilot flew a… ## Docket (2 files) The files NTSB released with the investigation on February 28, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=104163. 3.1 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 2.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12989993&FileExtension=pdf&FileName=6120_1web_N1061Y%202_Redacted-Rel.pdf - Photo log (item 2, PDF, 2 pages, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13280715&FileExtension=pdf&FileName=Photos-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.