# NTSB investigations: Pratt & Whitney PT6A66D: 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 ERA21LA003](https://openairdocs.org/ntsb/ERA21LA003.md): Socata TBM700 · Corfu, NY · Accident · 2 fatal · Class 3 · Limited · Final report · Oct 2, 2020 · N965DM · Destroyed
  > The pilot’s failure to maintain control of the airplane for undetermined reasons during the descent to the destination airport.
- [NTSB GAA20CA013](https://openairdocs.org/ntsb/GAA20CA013.md): Socata TBM700 · Breckenridge, TX · Accident · No injuries · Data collection · Final report · Oct 14, 2019 · N850NK · Substantial damage
  > The pilot's failure to maintain bank control and adequate altitude during the approach, which resulted in his failure to maintain the runway heading and a subsequent collision with trees and terrain.
- [NTSB CEN13WA480](https://openairdocs.org/ntsb/CEN13WA480.md): Socata TBM-700 · Vertaizon, France · Accident · 3 fatal · Foreign investigation · Aug 8, 2013 · N850GC · Substantial damage
- [NTSB CEN12LA153](https://openairdocs.org/ntsb/CEN12LA153.md): Socata TBM 700 · Madison, WI · Accident · Minor injuries · Limited investigation · Final report · Feb 10, 2012 · N850LM · Substantial damage
  > The pilot’s failure to ensure that ice and snow were removed from the airplane’s surfaces during the preflight inspection, which resulted in an inadvertent aerodynamic stall after takeoff and loss of control of the airplane.
- [NTSB CHI08FA150](https://openairdocs.org/ntsb/CHI08FA150.md): Socata TBM 700 (850) · Iowa City, IA · Accident · 1 fatal · Field investigation · Final report · Jun 3, 2008 · N849MA · Substantial damage
  > The pilot's improper decision to depart with a preexisting tailwind and failure to abort takeoff. Contributing to the severity of the injuries was the failure to properly restrain (FAA-required) the child passenger.

## 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 ('52281')
    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=52281

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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.