# NTSB investigations: Aeronca 11AC: Nose over/nose down

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 WPR24LA261](https://openairdocs.org/ntsb/WPR24LA261.md): Aeronca 11AC · Winchester, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 27, 2024 · N86270 · Substantial damage
  > A total loss of engine power due to a fatigue fracture of the crankshaft.
- [NTSB ERA24LA238](https://openairdocs.org/ntsb/ERA24LA238.md): Aeronca 11AC · Geneseo, NY · Accident · No injuries · Class 4 · Limited · Final report · Jun 1, 2024 · N9418E · Substantial damage
  > The pilot’s failure to maintain directional control during the takeoff roll resulting in a runway excursion, and subsequent nose over.
- [NTSB ERA22LA157](https://openairdocs.org/ntsb/ERA22LA157.md): Aeronca 11AC · Harveysburg, OH · Accident · No injuries · Class 3 · Limited · Final report · Mar 16, 2022 · N9588E · Substantial damage
  > A complete loss of engine power as a result of carburetor ice due to the flight instructor’s failure to effectively use carburetor heat in conditions conducive to the formation of carburetor ice.
- [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 ANC13CA062](https://openairdocs.org/ntsb/ANC13CA062.md): Aeronca 11AC · Kodiak, AK · Accident · No injuries · Data collection · Final report · Jul 6, 2013 · N9118E · Substantial damage
  > The loss of engine power due to carburetor icing and the pilot's failure to continue the use of carburetor heat after experiencing carburetor ice.
- [NTSB ERA10LA504](https://openairdocs.org/ntsb/ERA10LA504.md): Aeronca 11AC · Mocksville, NC · Accident · No injuries · Limited investigation · Final report · Aug 28, 2010 · N85929 · Substantial damage
  > The pilot’s failure to attain the proper touchdown point, following a loss of engine power due to carburetor icing.
- [NTSB CEN09LA567](https://openairdocs.org/ntsb/CEN09LA567.md): Aeronca 11AC · Marshall, MI · Accident · No injuries · Limited investigation · Final report · Sep 5, 2009 · N3383E · Substantial damage
  > The failure of the main landing gear attach point.

## 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" = '096' 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/096/sequence?model=0191102

---
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.