# NTSB investigations, AR: Altitude deviation,uncontrolled

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 MKC90LA001](https://openairdocs.org/ntsb/MKC90LA001.md): Alon Aircoupe · Greers Ferry, AR · Accident · No injuries · Limited investigation · Final report · Oct 1, 1989 · CGODM · Substantial damage
  > The pilot's misjudgement of performance data which resulted in the inability to gain sufficient airspeed for takeoff.
- [NTSB MKC84LA265](https://openairdocs.org/ntsb/MKC84LA265.md): Hughes 269C · Witts Springs, AR · Accident · No injuries · Limited investigation · Final report · Aug 29, 1984 · N7487F · Substantial damage
  > While manuevering at an alt of 35 to 40 ft above tree the plt felt a shutter and low frequency shaking of the rotor disk. Rotor RPM and engine RPM decreased and the acft entered a shallow descent. The plt applied forward cyclic, reduced collective and…

## 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" = 'AR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 110)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=110&state=AR

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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.