# NTSB CEN24LA283: Evektor-Aerotechnik A S Harmony LSA, N468JA, Cahokia Heights, IL, July 24, 2024 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: July 24, 2024, 11:03 local (16:03 UTC) - Place: Cahokia Heights, IL - Coordinates: 38.570361, -90.155083 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.5704&lon=-90.1551&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: 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/Federal Aviation - NTSB case key (mKey): 194761 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN24LA283 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/194761/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=194761 - Page: https://openairdocs.org/ntsb/CEN24LA283 ## Probable cause The student pilot’s failure to maintain directional control during landing rollout that resulted in a lateral runway excursion and impact with a runway sign. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Landing: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The flight instructor reported that his student was to perform three takeoffs and three landings as part of an initial solo flight requirement toward a private pilot certificate with an airplane single engine land rating. Prior to the initial solo flight, the student pilot performed four takeoff and four landings with his flight instructor. On the approach for fourth landing the flight instructor instructed the student pilot to perform a full stop landing, and to then taxi back to the airport ramp. The student pilot completed the full stop landing and taxied the airplane to the ramp where the flight instructor provided a solo endorsement and told the student pilot to perform two or three landings at his own pace. The flight instructor then exited the airplane. The student pilot then performed two touch and go landings followed by a third landing, during which the airplane bounced to the right. The student pilot applied corrective control inputs and recovered the airplane from the bounced landing. However, during the subsequent landing rollout and as the student pilot attempted to turn onto a taxiway, the airplane departed the runway laterally and impacted a runway sign. The airplane sustained substantial damage to left wing. There was no reported preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: N468JA (not matched to a registry record) - Reported make and model: EVEKTOR-AEROTECHNIK A S HARMONY LSA - Category: Airplane - Serial number: 20232219 - Year built: 2023 - Airframe hours: 76 - Engines: Rotax 912 IS2 Sport 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: St Louis Flight Training LLC - Registered owner: St Louis Flight Training LLC - Airworthiness certificate: Special, Experimental light sport (Special) - Last inspection: Condition, April 1, 2024 - Destination: Same as departure - Airport: CPS, St Louis Downtown Airport, runway 12L, 5,301 × 75 ft, concrete - Equipment: Stall warning system ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 37; injuries: none; student; medical: class 1, without waivers/limitations; seat: left; restraint: 4-point; flight hours: 21.9 total, 21.9 in this make and model, 21.9 in the last 90 days, 15.7 in the last 30 days, 1.4 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 72 °F - Altimeter: 30.15 inHg - Observed at: CPS - METAR: KCPS 241553Z 00000KT 10SM CLR 29/22 A3015 RMK AO2 SLP205 T02890217 ## 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 20240724014479A](https://openairdocs.org/incident/20240724014479A), Jul 24, 2024: Evektor-Aerotechnik A S HARMONY LSA, Cahokia, IL, Substantial damage. While landing the student pilot on a solo performed a landing on runway 12L. The student landed hard and at a high rate of speed. The student pilot recieved… ## Docket (2 files) The files NTSB released with the investigation on September 12, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=194761. 4.1 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 2.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17501681&FileExtension=pdf&FileName=6120%20Master%202_Redacted-Rel.pdf - Photos (item 2, PDF, 3 pages, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=17484543&FileExtension=pdf&FileName=Photo%20Template-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.