# NTSB investigations: Rotax 503 DCDI, NH

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 ERA25LA063](https://openairdocs.org/ntsb/ERA25LA063.md): Holtz Rodney R Challenger II · Concord, NH · Accident · No injuries · Class 4 · Limited · Final report · Nov 20, 2024 · N1666R · Substantial damage
  > The pilot’s failure to maintain directional control and eventual stall/mush of the airplane while trying to secure an open door in flight.
- [NTSB ERA23LA360](https://openairdocs.org/ntsb/ERA23LA360.md): Brown Benjamin C Challenger II · Moultonborough, NH · Accident · No injuries · Class 3 · Limited · Final report · Sep 1, 2023 · N2480Y · Substantial damage
  > A loss of engine power due to a loss of compression in one of the engine’s two cylinders.
- [NTSB ERA21LA008](https://openairdocs.org/ntsb/ERA21LA008.md): Experimental Quad City Challenger II · Northfield, NH · Accident · No injuries · Class 3 · Limited · Final report · Oct 3, 2020 · N129AY · Substantial damage
  > A total loss of engine power due to oil starvation of the No. 1 cylinder. Contributing to the accident was the pinched No. 1 cylinder oil injection line.

## 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."eventStateOrRegion" = 'NH' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('55566'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=55566&state=NH

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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.