# NTSB investigations, AZ: Fuel contamination

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 WPR23LA167](https://openairdocs.org/ntsb/WPR23LA167.md): Gates Learjet 35A · Page, AZ · Occurrence · No injuries · Class 3 · Limited · Final report · Apr 24, 2023 · N135SH · No damage
  > The fueler’s inadvertent addition of diesel exhaust fluid (DEF) to the FSII reservoir on the fuel truck, and its subsequent mixture with the JET A that was used to fuel the airplane, resulting in a total loss of power to the right engine and a partial loss of…
- [NTSB WPR16FA176](https://openairdocs.org/ntsb/WPR16FA176.md): Cessna 310N · Wickenburg, AZ · Accident · Serious injuries · Field investigation · Final report · Sep 9, 2016 · N126P · Substantial damage
  > Total loss of power to the right engine during takeoff due to a fuel contaminant, which blocked the fuel flow transducer and resulted in fuel starvation to the engine.
- [NTSB WPR14LA371](https://openairdocs.org/ntsb/WPR14LA371.md): Ayres S2R T34 · Buckeye, AZ · Accident · No injuries · Limited investigation · Final report · Sep 9, 2014 · N3097F · Substantial damage
  > A partial loss of engine power due to water contamination of the fuel.
- [NTSB WPR11FA331](https://openairdocs.org/ntsb/WPR11FA331.md): Mooney M20F · Winslow, AZ · Accident · 2 fatal · Field investigation · Final report · Jul 17, 2011 · N3534X · Substantial damage
  > A loss of engine power due to fuel system contamination, and the pilot’s subsequent failure to maintain an adequate airspeed, which resulted in a loss of control.
- [NTSB WPR09LA021](https://openairdocs.org/ntsb/WPR09LA021.md): Cessna 172A · Coolidge, AZ · Accident · Minor injuries · Limited investigation · Final report · Oct 23, 2008 · N7822T · Substantial damage
  > A total loss of engine power due to water contamination of the fuel system. Contributing to the accident was the pilot's inadequate preflight inspection.

## 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" = 'AZ' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '193' 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/193/sequence?state=AZ

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