NTSB investigations: Aeronca 11AC

13 cases on aircraft the registry lists as Aeronca 11AC, where the sequence of events included Runway excursion. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Cases per year

20102026
NTSB investigations: Aeronca 11AC per year, 2010–2026: 13 cases
20102
20142
20163
20172
20191
20211
20242

Latest cases

Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
  WHERE c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0191102')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s.\"tier2Number\" = '300' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB ERA24LA238Accident · No injuriesClass 4 · LimitedFinal reportAeronca 11AC · Geneseo, NYThe pilot’s failure to maintain directional control during the takeoff roll resulting in a runway excursion, and subsequent nose over.Jun 1, 2024 · N9418E · Substantial damageNTSB ERA24LA183Accident · Minor injuriesClass 4 · LimitedFinal reportAeronca 11AC · Conyers, GAAn encounter with shifting wind conditions, which resulted in the airplane using more runway than anticipated, an aborted takeoff, and subsequent runway excursion. Contributing to the accident was the pilot’s failure account for the potential of variable and…Mar 31, 2024 · N3420E · Substantial damageNTSB CEN21LA275Accident · Minor injuriesClass 4 · LimitedFinal reportAeronca 11AC · Baltimore, OHThe pilot’s loss of directional control during landing.Jun 16, 2021 · N85930 · Substantial damageNTSB WPR20CA058Accident · No injuriesData collectionFinal reportAeronca 11AC · San Diego, CAThe pilot's failure to maintain directional control during the landing roll with a quartering tailwind, which resulted in a collision with an airport sign and subsequent ground-loop.Nov 25, 2019 · N9510E · Substantial damageNTSB ERA17LA262Accident · No injuriesClass 3 · LimitedFinal reportAeronca 11BC · Gilbert, SCThe pilot's failure to maintain directional control during landing, which resulted in a runway excursion.Jul 20, 2017 · N3154E · Substantial damageNTSB GAA17CA203Accident · No injuriesData collectionFinal reportAeronca 11AC · Warroad, MNThe pilot’s improper landing flare and his subsequent failure to maintain directional control during the landing in tailwind conditions.Mar 25, 2017 · N9595E · Substantial damageNTSB GAA17CA043Accident · No injuriesData collectionFinal reportAeronca 11AC · Winter Haven, FLThe pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion.Oct 22, 2016 · N9410E · Substantial damageNTSB GAA16CA410Accident · No injuriesData collectionFinal reportAeronca 11AC · Gig Harbor, WAThe pilot's failure to maintain directional control during landing, and subsequent wing tip strike, which resulted in substantial damage to the rear spar.Jul 26, 2016 · N9791E · Substantial damageNTSB GAA16CA257Accident · No injuriesData collectionFinal reportAeronca 11AC · Vinton, IAThe pilot's failure to maintain directional control during the landing roll in gusty crosswind conditions, which resulted in a runway excursion and ground loop.May 19, 2016 · N85871 · Substantial damageNTSB CEN14LA387Accident · Minor injuriesLimited investigationFinal reportAeronca 11AC · Flushing, MIThe pilot receiving instruction’s failure to maintain directional control during the takeoff roll. Contributing to the accident was the flight instructor not having access to brake controls, which limited his ability to regain directional control at slower…Jul 22, 2014 · N4453P · Substantial damageNTSB WPR14CA229Accident · No injuriesData collectionFinal reportAeronca 11AC · Tacoma, WAThe student pilot's improper application of rudder resulted in a loss of control during the landing roll and the flight instructor's inadequate oversight.Jun 4, 2014 · N9791E · Substantial damageNTSB ERA10LA504Accident · No injuriesLimited investigationFinal reportAeronca 11AC · Mocksville, NCThe pilot’s failure to attain the proper touchdown point, following a loss of engine power due to carburetor icing.Aug 28, 2010 · N85929 · Substantial damageNTSB ERA11CA163Accident · No injuriesData collectionFinal reportAeronca 11AC · Randolph, NYThe certified flight instructor's delayed response to the student pilot's loss of directional control during takeoff, which resulted in a runway excursion and collision with a building.Jul 20, 2010 · N9120E · Substantial damage