# NTSB CEN25LA152: Corben Junior ACE, N941KW, Jeanerette, LA, April 9, 2025 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: April 9, 2025, 12:00 local (17:00 UTC) - Place: Jeanerette, LA - Coordinates: 29.899069, -91.666 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=29.8991&lon=-91.6660&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - 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: FAA - NTSB case key (mKey): 199990 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN25LA152 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/199990/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=199990 - Page: https://openairdocs.org/ntsb/CEN25LA152 ## Probable cause The pilot’s failure to maintain airplane control during the landing roll. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Waters Kenneth R CORBEN JUNIOR ACE, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=056308O), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Runway/land/takeoff/taxi surface](https://openairdocs.org/ntsb-findings/03023000): Environmental issues › Physical environment · Response/compensation (probable cause); cases with it: [Waters Kenneth R CORBEN JUNIOR ACE, 1 case](https://openairdocs.org/ntsb-findings/03023000/cases.md?model=056308O), [All aircraft, 253 cases](https://openairdocs.org/ntsb-findings/03023000/cases.md) - [Performance/control parameters](https://openairdocs.org/ntsb-findings/01062000): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Waters Kenneth R CORBEN JUNIOR ACE, 1 case](https://openairdocs.org/ntsb-findings/01062000/cases.md?model=056308O), [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-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Waters Kenneth R CORBEN JUNIOR ACE, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=056308O), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Waters Kenneth R CORBEN JUNIOR ACE, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=056308O), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot landed a tailwheel-equipped airplane on the grass adjacent to the runway. The pilot reported that during the landing roll, the airplane encountered a rough spot on the ground. The tailwheel began to bounce repeatedly, and the pilot lost control of the airplane as it nosed over and came to rest inverted. The airplane sustained substantial damage to the vertical stabilizer and rudder. The pilot reported that there were no preimpact mechanical failures or malfunctions that would have precluded normal operations. ## Aircraft - Registration: [N941KW](https://openairdocs.org/aircraft/N941KW), registered now, S/N 941, built 2012 (OpenAirDocs) - Reported make and model: CORBEN JUNIOR ACE - Registry model: [Waters Kenneth R CORBEN JUNIOR ACE](https://openairdocs.org/model/waters-kenneth-r-corben-junior-ace) (registry code 056308O) (OpenAirDocs) - Registry engine: [Continental A75-8](https://openairdocs.org/engine/continental-a75-8) (registry code 17079, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 941 - Year built: 2012 - Airframe hours: 105 - Engines: Continental Motors A65 65 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental light sport (Special) - Last inspection: Annual, August 16, 2024, 20 hours before - Destination: 21R, Jeanerette, LA - Airport: 2R1, Le Maire Memorial Airport, runway 04/22, 3,000 × 75 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 83; injuries: none; private; airplane ratings: single-engine land; medical: sport pilot, with waivers/limitations; last flight review August 20, 2024; seat: single; restraint: 4-point; flight hours: 1,228 total, 23.5 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 230° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 72 °F, dew point 45 °F - Altimeter: 30.21 inHg - Observed at: KARA, 14 nm away - METAR: KARA 091653Z 23006KT 10SM CLR 22/07 A3021 RMK AO2 SLP229 T02220072 ## 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 20250409005359A](https://openairdocs.org/incident/20250409005359A), Apr 9, 2025: Waters Kenneth R CORBEN JUNIOR ACE, Jeanerette, LA, Substantial damage. The aircraft landed in the grass intentionally to the left of the runway and nosed over after rolling over a small mound and uneven patch of grass. The pilot… ## Docket (3 files) The files NTSB released with the investigation on June 5, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=199990. 3.2 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 10 pages, 3.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18708699&FileExtension=pdf&FileName=NTSB%20Form%206120_Redacted-Rel.pdf - Investigation photographs (item 2, PDF, 2 pages, 109 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18709545&FileExtension=pdf&FileName=Investigation%20Photographs-Rel.pdf - FAA inspector's statement (item 3, PDF, 1 page, 63 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18709076&FileExtension=pdf&FileName=MOR%20FAA-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.