# NTSB investigations: Pratt & Whitney Canada PT6A-34 series: Loss of control in flight

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 CEN26FA224](https://openairdocs.org/ntsb/CEN26FA224.md): Pacific Aerospace 750XL · Butler, MO · Accident · 12 fatal · Class 2 · Field · Preliminary report · Jun 14, 2026 · N221BN · Destroyed
  > On June 14, 2026, about 1125 central daylight time, a Pacific Aerospace Limited 750XL airplane, N221BN, was destroyed when it was involved in an accident near Butler, Missouri. The pilot and 11 passengers sustained fatal injuries. The airplane was operated as…
- [NTSB ERA18FA092](https://openairdocs.org/ntsb/ERA18FA092.md): Quest Kodiac 100 · Georgetown, FL · Accident · 2 fatal · Field investigation · Final report · Feb 28, 2018 · N969TB · Substantial damage
  > The pilots' spatial disorientation while maneuvering for landing in night conditions over unlighted terrain, which resulted in an uncontrolled descent and impact with water.
- [NTSB WPR17FA035](https://openairdocs.org/ntsb/WPR17FA035.md): Quest Kodiak 100 · Moab, UT · Accident · 1 fatal · Field investigation · Final report · Dec 12, 2016 · N772RT · Destroyed
  > The pilot's loss of control shortly after takeoff due to spatial disorientation.
- [NTSB CEN16LA019](https://openairdocs.org/ntsb/CEN16LA019.md): Quest Kodiak 100 · Sheridan, WY · Accident · Serious injuries · Limited investigation · Final report · Oct 9, 2015 · N153RW · Substantial damage
  > The loss of airplane control during takeoff for reasons that could not be determined based on the available information.

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52250')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '240'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/240/cases?engine=52250

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