# NTSB investigations: Aeronca 11AC: Loss of control in flight

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB GAA17CA203](https://openairdocs.org/ntsb/GAA17CA203.md): Aeronca 11AC · Warroad, MN · Accident · No injuries · Data collection · Final report · Mar 25, 2017 · N9595E · Substantial damage
  > The pilot’s improper landing flare and his subsequent failure to maintain directional control during the landing in tailwind conditions.
- [NTSB CEN16FA269](https://openairdocs.org/ntsb/CEN16FA269.md): Aeronca 11AC · Ishpeming, MI · Accident · 2 fatal · Field investigation · Final report · Jul 19, 2016 · N85893 · Substantial damage
  > The pilot's failure to maintain airspeed following a loss of engine power due to carburetor icing while turning from base to final at a low altitude, which resulted in the airplane's wing exceeding its critical angle of attack and a subsequent aerodynamic…
- [NTSB CEN16FA240](https://openairdocs.org/ntsb/CEN16FA240.md): Aeronca 11AC · Frankenmuth, MI · Accident · 2 fatal · Field investigation · Final report · Jul 3, 2016 · N86078 · Destroyed
  > The pilot's loss of control for undetermined reasons based on available information.
- [NTSB ERA13LA221](https://openairdocs.org/ntsb/ERA13LA221.md): Aeronca 11AC · Hoosick Falls, NY · Accident · Serious injuries · Limited investigation · Final report · Apr 28, 2013 · N3503E · Substantial damage
  > The failure of the left wing attachment bracket weld due to inadequate welding by unknown maintenance personnel.
- [NTSB CEN12CA595](https://openairdocs.org/ntsb/CEN12CA595.md): Aeronca 11AC · Comfort, TX · Accident · Minor injuries · Data collection · Final report · Aug 24, 2012 · N9771E · Substantial damage
  > The pilot did not maintain control of the airplane after takeoff, which resulted in an inadvertent stall.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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" = '240' 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
```

This list as a web page: https://openairdocs.org/ntsb-events/240/sequence?model=0191102

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