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Accidents · NTSB ERA24LA238 · Final report

Aeronca 11AC accident near Geneseo, New York, June 1, 2024

On June 1, 2024 at about 6:30 pm local time, a 1946 Aeronca 11AC, registered N9418E, was substantially damaged in an accident during takeoff near Geneseo, New York (Geneseo Airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot’s failure to maintain directional control during the takeoff roll resulting in a runway excursion, and subsequent nose over.

Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.

What the record shows

Date
June 1, 2024 · about 6:30 pm local time
Place
Geneseo, New York · Geneseo Airport · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Aeronca 11AC NO SERIES, built 1946 · all 11ACs on the register
Registration
N9418E · registry record · serial 11AC-1055
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

The pilot had previously performed three uneventful landings and elected to depart for a final landing. The pilot initiated the takeoff roll from but started to lose directional control, drifting from one side of the runway to the other. When the left main tire was in tall vegetation adjacent to the runway he decided to continue the takeoff but the airplane veered more to the left and entered taller vegetation. While slowing the airplane nosed over, and both of the right wing’s lift struts were substantially damaged. The pilot reported, and a postaccident examination of the airplane confirmed, that there were no preimpact mechanical malfunctions or failures of the airplane that would have precluded normal operation.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Loss of control on ground during takeoff defining event
  2. Runway excursion during takeoff
  3. Collision with terrain or object (not controlled flight into terrain) during takeoff
  4. Nose over/nose down during takeoff

The NTSB's findings

  • Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
  • Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained

Pilot

  • Certificate: private
  • Ratings: single-engine land
  • Flight time: 230 hours in all; 38 in this make and model; 5 in the last 90 days; 166 as pilot in command
  • Last flight review: September 22, 2023
  • Medical certificate: BasicMed
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 2,309 hours
  • Last inspection: 100-hour inspection, December 17, 2023; 4 hours since
  • Maximum gross weight: 1,250 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Continental A-665-8-F (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 5, 4,695 ft by 90 ft

Weather at the time

  • Light: daylight
  • Wind: at 5 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 82°F (28°C), dew point 45°F (7°C)
  • Altimeter: 30.14 inHg
  • Observation at 2:54 pm from KDSV, 15 miles away

Weather report (METAR): METAR KDSV 011854Z AUTO VRB05KT 10SM CLR 28/07 A3014 RMK AO2 SLP213 T02780067=

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

6 documents, released by the NTSB on October 31, 2024. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

About this page

Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number ERA24LA238.