# NTSB investigations: Schweizer 269C, MD

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 ERA11LA428](https://openairdocs.org/ntsb/ERA11LA428.md): Schweizer 269C · Darlington, MD · Accident · Minor injuries · Limited investigation · Final report · Jul 29, 2011 · N39SH · Substantial damage
  > Inadequate maintenance of the helicopter's landing gear dampers, which resulted in a main rotor out-of-balance condition and ground resonance encounter.
- [NTSB IAD99GA013](https://openairdocs.org/ntsb/IAD99GA013.md): Schweizer 269C · Baltimore, MD · Accident · 1 fatal · Final report · Nov 4, 1998 · N2100B · Destroyed
  > inadequate assembly instructions from the engine manufacturer which resulted in improper engine assembly, and subsequent power loss over unsuitable terrain, with insufficient altitude for a successful autorotation.
- [NTSB NYC97GA148](https://openairdocs.org/ntsb/NYC97GA148.md): Schweizer 269C · Baltimore, MD · Accident · Serious injuries · Final report · Jul 18, 1997 · N6129Q · Destroyed
  > A total loss of engine power which was a result of incomplete and improper engine overhaul by company maintenance personnel. A factor in the accident was the unsuitable forced landing area terrain.
- [NTSB NYC95TA190](https://openairdocs.org/ntsb/NYC95TA190.md): Schweizer 269C · Baltimore, MD · Accident · Minor injuries · Final report · Aug 12, 1995 · N7511E · Substantial damage
  > The pilot's failure to maintain adequate terrain clearance which resulted in an inflight collision with the ground.
- [NTSB NYC93GA025](https://openairdocs.org/ntsb/NYC93GA025.md): Schweizer 269C · Baltimore, MD · Accident · Serious injuries · Final report · Oct 19, 1992 · N6132E · Substantial damage
  > A power loss of undetermined origin. Factors related to the accident were the night conditions, the lack of a suitable landing area, and the inability of the pilot to maintain rotor RPM while maneuvering to avoid obstacles.

## 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" = 'MD' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('8059502'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=8059502&state=MD

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