# NTSB investigations: Pratt & Whitney R-2800 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 WPR22FA331](https://openairdocs.org/ntsb/WPR22FA331.md): Yakovlev YAK-11 · Shafter, CA · Accident · 1 fatal · Class 3 · Field · Final report · Sep 2, 2022 · N5943 · Destroyed
  > The pilot’s exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and subsequent impact with terrain. Contributing to the accident was the loss of engine oil pressure shortly after takeoff.
- [NTSB CEN19MA312](https://openairdocs.org/ntsb/CEN19MA312.md): Convair 440 · Monclova, OH · Accident · 2 fatal · Class 3 · Major · Final report · Sep 11, 2019 · N24DR · Destroyed
  > The flight crew’s failure to maintain the proper airspeed on final approach, which resulted in an inadvertent aerodynamic stall and impact with trees, and terrain. Contributing to the accident was the flight crew’s fatigue due to the overnight flight schedule.
- [NTSB GAA17CA518](https://openairdocs.org/ntsb/GAA17CA518.md): Croft Robert C Kitfox Super Sport · Afton, WY · Accident · No injuries · Data collection · Final report · Sep 2, 2017 · N429NC · Substantial damage
  > The pilot’s failure to maintain bank control during an attempted go-around.
- [NTSB CEN12LA227](https://openairdocs.org/ntsb/CEN12LA227.md): Grumman F8F-1 · Breckenridge, TX · Accident · 1 fatal · Limited investigation · Final report · Apr 4, 2012 · N14HP · Substantial damage
  > The pilot's loss of airplane control during a low-altitude aerobatic maneuver.
- [NTSB DCA12FA051](https://openairdocs.org/ntsb/DCA12FA051.md): Convair 440 - NO Series · San Juan, PR · Accident · 2 fatal · Class 1 · Field · Final report · Mar 15, 2012 · N153JR · Destroyed
  > the flight crew's failure to maintain adequate airspeed after shutting down the right engine due to an in-flight fire in one of the right augmentors. The failure to maintain airspeed resulted in either an aerodynamic stall or a loss of directional control.
- [NTSB ANC10FA067](https://openairdocs.org/ntsb/ANC10FA067.md): Fairchild C-123K · McKinley Park, AK · Accident · 3 fatal · Field investigation · Final report · Aug 1, 2010 · N709RR · Substantial damage
  > The pilot's failure to maintain adequate airspeed to avoid a low altitude stall, resulting in a loss of control and collision with 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52026')
    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=52026

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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.