# NTSB GAA19CA237: Vans RV 6, N621L, Chandler, OK, April 27, 2019 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: April 26, 2019, 19:50 local (Apr 27, 2019, 00:50 UTC) - Place: Chandler, OK - Coordinates: 35.814998, -96.873886 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=35.8150&lon=-96.8739&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Nose over/nose down](https://openairdocs.org/ntsb-events/096) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report March 20, 2020 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 99357 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA19CA237 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/99357/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=99357 - Page: https://openairdocs.org/ntsb/GAA19CA237 ## Probable cause The pilot's overapplication of the brakes during landing on a grass runway, which resulted in a nose-over. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Incorrect use/operation (probable cause); cases with it: [Crum Don W RV-6, 1 case](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=056040O), [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Crum Don W RV-6, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=056040O), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Crum Don W RV-6, 1 case](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=056040O), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) - [Runway/land/takeoff/taxi surface: soft surface](https://openairdocs.org/ntsb-findings/03023020): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Crum Don W RV-6, 1 case](https://openairdocs.org/ntsb-findings/03023020/cases.md?model=056040O), [All aircraft, 264 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Nose over/nose down](https://openairdocs.org/ntsb-events/096) (defining event); cases with it: [Crum Don W RV-6, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=056040O), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot of a tailwheel-equipped airplane reported that, while landing on a grass runway, he applied the brakes and retracted the flaps and that the airplane subsequently nosed over. The airplane sustained substantial damage to the left wing and vertical stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Factual narrative The pilot of a tailwheel-equipped airplane reported that, while landing on a grass runway, he applied the brakes and retracted the flaps, and the airplane nosed over. The airplane sustained substantial damaged to the left wing and vertical stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N621L](https://openairdocs.org/deregistered/N621L-2020-08-21), registration cancelled 2020-08-21, S/N 60002, built 2001 (OpenAirDocs) - Reported make and model: Vans RV 6 (Undesignat) - Registry model: [Crum Don W RV-6](https://openairdocs.org/model/crum-don-w-rv-6) (registry code 056040O) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 60002 - Year built: 2001 - Airframe hours: 563 - Engines: Lycoming YO-360 EXP 57 180 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, April 19, 2019 - Departed: OUN, Norman, OK - Destination: 8OK6, Chandler, OK - Airport: 8OK6, Grass Strip, runway 22, 2,000 × 30 ft, grass/turf - Equipment: ADS-B, Angle of attack indicator, Auto-pilot, Electronic primary flight display ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 60; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane, helicopter; medical: class 2, with waivers/limitations; last flight review October 26, 2018; seat: left; restraint: 4-point; flight hours: 2,670 total, 112 in this make and model, 2,004 as pilot in command, 84 in the last 90 days, 45 in the last 30 days, 5 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 160° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 68 °F, dew point 45 °F - Altimeter: 29.97 inHg - Observed at: KCQB, 6 nm away ## 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 20190426003459A](https://openairdocs.org/incident/20190426003459A), Apr 26, 2019: Crum Don W RV-6, Agra, OK, Substantial damage. The pilot was operating a part 91 VFR flight returning to his private grass runway. The runway is listed as 04-22, 2000 x 30, grass, fair condition. The pilot… ## Docket (3 files) The files NTSB released with the investigation on May 15, 2019, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=99357. 6.0 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 5.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40472920&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Record of Conversation (item 2, .PDF, 96 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40472921&FileExtension=.PDF&FileName=Record%20of%20Conversation-Master.PDF - Accident Photos (item 3, .PDF, 3 photos, 244 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40472922&FileExtension=.PDF&FileName=Accident%20Photos-Master.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.