# NTSB investigations: Oxygen system, general

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 ERA23FA256](https://openairdocs.org/ntsb/ERA23FA256.md): Cessna 560 · Montebello, VA · Accident · 4 fatal · Class 3 · Field · Final report · Jun 4, 2023 · N611VG · Destroyed
  > Pilot incapacitation due to loss of cabin pressure for undetermined reasons. Contributing to the accident was the pilot’s and owner/operator’s decision to operate the airplane without supplemental oxygen.
- [NTSB CEN22FA021](https://openairdocs.org/ntsb/CEN22FA021.md): Beech B36TC · Lena, WI · Accident · 1 fatal · Class 3 · Field · Final report · Oct 27, 2021 · N75RM · Substantial damage
  > Impairment and subsequent incapacitation of the pilot for reasons that could not be determined. The incapacitation resulted in a loss of engine power due to fuel starvation. Likely contributing was pilot hypoxia due to altitude exposure, possibly worsened by…
- [NTSB ERA15LA349](https://openairdocs.org/ntsb/ERA15LA349.md): Mooney M20TN · Atlantic City (Atlantic Ocean) · Accident · 1 fatal · Limited investigation · Final report · Sep 10, 2015 · N370MM · Substantial damage
  > A loose oxygen line, which was not detected by maintenance personnel during a recent annual inspection, that allowed oxygen to escape and drain the oxygen canister more quickly than the pilot expected. This reduced the pilot's availability of supplemental…
- [NTSB ERA09FA429](https://openairdocs.org/ntsb/ERA09FA429.md): Cirrus SR-22 · Ravenswood, WV · Accident · 1 fatal · Field investigation · Final report · Jul 31, 2009 · N581DS · Destroyed
  > The pilot's improper modification of the certified, on-board oxygen system, which resulted in incapacitation due to hypoxia, and the airplane's subsequent uncontrolled descent into terrain.

## 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01023500'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01023500/cases

---
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.