# NTSB investigations: Champion 7AC: Collision with terr/obj (non-CFIT)

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 ERA25LA147](https://openairdocs.org/ntsb/ERA25LA147.md): Champion 7AC · Palmetto, FL · Accident · Serious injuries · Class 4 · Limited · Final report · Mar 18, 2025 · N1369E · Substantial damage
  > The flight instructor’s inability to overpower control inputs made by the student pilot during initial climb, which resulted in the airplane impacting powerlines and the ground.
- [NTSB ERA19TA182](https://openairdocs.org/ntsb/ERA19TA182.md): Aeronca 7AC · Concord, GA · Accident · No injuries · Class 3 · Final report · May 27, 2019 · N1797E · Substantial damage
  > The pilot's inability to maintain directional control during landing for reasons that could not be determined because postaccident examination of the airplane brake assemblies revealed no anomalies that would have caused the right brake to lock, which…
- [NTSB ERA16LA220](https://openairdocs.org/ntsb/ERA16LA220.md): Champion 7AC · Gorham, NH · Accident · No injuries · Class 3 · Limited · Final report · Jun 16, 2016 · N83578 · Substantial damage
  > The partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot’s failure to abort the takeoff after the airplane’s initial failure to climb.

## 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 ('21101MA')
    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" = '470' 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/470/sequence?model=21101MA

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