# NTSB CEN24LA324: Rans RV8, N348CW, Morris, IL, August 10, 2024 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: August 10, 2024, 16:15 UTC - Place: Morris, IL - Coordinates: 41.42475, -88.418667 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=41.4248&lon=-88.4187&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: 2 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Central Region - Parties: FAA FSDO Chicago - NTSB case key (mKey): 194981 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN24LA324 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/194981/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=194981 - Page: https://openairdocs.org/ntsb/CEN24LA324 ## Probable cause The student pilot’s failure to maintain directional control and the flight instructors delayed remedial action while landing with a gusty crosswind. ## 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 · Student/instructed pilot (probable cause); cases with it: [Wilson Charlie H RV8 C WILSON, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05607IP), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Wilson Charlie H RV8 C WILSON, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=05607IP), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Wilson Charlie H RV8 C WILSON, 1 case](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=05607IP), [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Wilson Charlie H RV8 C WILSON, 1 case](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=05607IP), [All aircraft, 1,199 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md) - [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Instructor/check pilot (probable cause); cases with it: [Wilson Charlie H RV8 C WILSON, 1 case](https://openairdocs.org/ntsb-findings/02041025/cases.md?model=05607IP), [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/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: Other weather encounter](https://openairdocs.org/ntsb-events/400); cases with it: [Wilson Charlie H RV8 C WILSON, 1 case](https://openairdocs.org/ntsb-events/400/sequence.md?model=05607IP), [All aircraft, 1,127 cases](https://openairdocs.org/ntsb-events/400/sequence.md) - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Wilson Charlie H RV8 C WILSON, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05607IP), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Wilson Charlie H RV8 C WILSON, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=05607IP), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) ## Analysis The student pilot executed a normal landing to runway 36 in the tailwheel airplane, and the flight instructor guarded the controls. The flight instructor stated that the landing was excellent and on centerline of the runway. During rollout, a level, tail-up attitude was maintained as the airplane slowed. As soon as the tailwheel contacted the runway, the airplane began an unexpected swerve to the right. The flight instructor stated that no input from him or his student caused the swerve. Both the student pilot and the flight instructor tried to correct the swerve; however, the airplane did not respond to inputs of full left rudder and full left brake. The airplane ground looped, hit a ditch, and sustained substantial damage to the left side of the fuselage adjacent to the left wing attachment point. Examination of the airplane did not reveal any preimpact anomalies with the tailwheel assembly, main wheel brakes, or the flight controls that would have precluded normal operation. The flight instructor reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operations. The reported wind about the time of the accident was 280° at 13 knots with gusts to 16 knots. The flight instructor estimated the wind at the time of the accident was 330° at 5 knots. ## Aircraft - Registration: [N348CW](https://openairdocs.org/aircraft/N348CW), registered now, S/N 8044-99, built 1999 (OpenAirDocs) - Reported make and model: RANS RV8 - Registry model: [Wilson Charlie H RV8 C WILSON](https://openairdocs.org/model/wilson-charlie-h-rv8-c-wilson) (registry code 05607IP) (OpenAirDocs) - Registry engine: [Lycoming I0360 SER A&C](https://openairdocs.org/engine/lycoming-i0360-ser-a-c) (registry code 41511, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 8044-99 - Year built: 1999 - Airframe hours: 1236 - Engines: Lycoming IO-360 200 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Airworthiness certificate: Special, Experimental light sport (Special) - Last inspection: Condition, August 15, 2023 - Destination: Same as departure - Airport: C09, Morris Washburn Airport, runway 36, 5,501 × 75 ft, asphalt - Equipment: ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 60; injuries: none; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: basicmed, without waivers/limitations; last flight review September 9, 2023; seat: rear; restraint: 4-point; flight hours: 4,253 total, 426 in this make and model, 53 in the last 90 days, 15 in the last 30 days - Student pilot; injuries: none; seat: front; restraint: 4-point; flight hours: 0 total, 0 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 280° at 13 knots, gusting 16 - Visibility: 10 statute miles - Lowest ceiling: 5,000 ft broken - Temperature: 73 °F, dew point 54 °F - Altimeter: 30.11 inHg - Observed at: KC09 - METAR: KC09 102115Z AUTO 29010KT 10SM BKN050 23/12 A3011 RMK AO2 T02250116 ## Docket (5 files) The files NTSB released with the investigation on October 24, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=194981. 4.6 MB in all. - NTSB form 6120 pilot operator report CEN24LA324 (item 1, PDF, 9 pages, 3.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17684772&FileExtension=pdf&FileName=NTSB%20Form%206120%20Pilot%20Operator%20Report%20CEN24LA324_Redacted-Rel.pdf - Memorandum for the record examination findings CEN24LA324 (item 2, PDF, 1 page, 124 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17685344&FileExtension=pdf&FileName=Memorandum%20for%20the%20Record%20Examination%20Findings%20CEN24LA324_Redacted-Rel.pdf - Memorandum for the record student pilot information CEN24LA324 (item 3, PDF, 1 page, 124 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17684843&FileExtension=pdf&FileName=Memorandum%20for%20the%20Record%20Student%20Pilot%20Information%20CEN24LA324_Redacted-Rel.pdf - Memorandum for the record telephone conversation CEN24LA324 (item 4, PDF, 1 page, 122 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17686098&FileExtension=pdf&FileName=Memorandum%20for%20the%20Record%20Telephone%20Conversation%20CEN24LA324_Redacted-Rel.pdf - Investigation photographs CEN24LA324 (item 5, PDF, 3 pages, 384 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17685143&FileExtension=pdf&FileName=Investigation%20Photographs%20CEN24LA324-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.