# NTSB investigations: Pratt & Whitney R-985 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 ANC24LA054](https://openairdocs.org/ntsb/ANC24LA054.md): Dehavilland Beaver DHC-2 MK.1 · Aleknagik, AK · Accident · No injuries · Class 4 · Limited · Final report · Jun 21, 2024 · N55WE · Substantial damage
  > The pilot’s failure to maintain pitch control of the airplane during initial climb.
- [NTSB ANC22LA050](https://openairdocs.org/ntsb/ANC22LA050.md): Dehavilland Beaver U-6A · Kokhanok, AK · Accident · No injuries · Class 4 · Limited · Final report · Jun 26, 2022 · N600NL · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff in gusting wind conditions which resulted in a loss of control and impact with the water.
- [NTSB WPR21FA170](https://openairdocs.org/ntsb/WPR21FA170.md): Consolidated Vultee BT-13A · Camas, WA · Accident · 1 fatal · Class 3 · Field · Final report · Apr 21, 2021 · N53331 · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack during an aborted landing, resulting in an aerodynamic stall and impact with terrain.
- [NTSB GAA20CA007](https://openairdocs.org/ntsb/GAA20CA007.md): De Havilland Beaver DHC 2 · Kodiak, AK · Accident · No injuries · Data collection · Final report · Oct 7, 2019 · N1544 · Substantial damage
  > The pilot's failure to maintain lateral control while landing on glassy water, which resulted in the left float touching the water, a loss of yaw control, and impact with a riverbank.
- [NTSB ERA17FA153](https://openairdocs.org/ntsb/ERA17FA153.md): Howard DGA 15P · Monongahela, PA · Accident · 1 fatal · Field investigation · Final report · Apr 12, 2017 · N4476N · Destroyed
  > The pilot's failure to maintain airplane control during an attempted go-around in gusting crosswind conditions, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent aerodynamic stall.
- [NTSB GAA16CA384](https://openairdocs.org/ntsb/GAA16CA384.md): Boeing A75 · St. James, MO · Accident · Minor injuries · Data collection · Final report · Jul 17, 2016 · N4558N · Substantial damage
  > The pilot's loss of control while performing an aerobatic maneuver resulting in an inadvertent spin and collision with trees and terrain.
- [NTSB GAA16CA146](https://openairdocs.org/ntsb/GAA16CA146.md): Beech D17 · Brighton, CO · Accident · Minor injuries · Data collection · Final report · Mar 11, 2016 · N9290H · Substantial damage
  > The pilot's failure to maintain the runway course during takeoff, resulting in the airplane drifting to the left and impacting a fence. A contributing factor to the accident was the pilot's diverted attention during the takeoff.
- [NTSB CEN13FA324](https://openairdocs.org/ntsb/CEN13FA324.md): Weatherly 620B · Ludlow, SD · Accident · 1 fatal · Field investigation · Final report · Jun 7, 2013 · N350WR · Substantial damage
  > The pilot’s failure to maintain control of the airplane while maneuvering, which resulted in an inadvertent stall. Contributing to the accident was task- and/or work-related fatigue.
- [NTSB ERA11FA274](https://openairdocs.org/ntsb/ERA11FA274.md): Beech E18S · Miami Gardens, FL · Accident · 1 fatal · Field investigation · Final report · May 2, 2011 · N18R · Substantial damage
  > The pilot’s improper response to a loss of power in the No. 2 engine and his failure to ensure that the airplane was airworthy. Contributing to the accident was the inadequate engine maintenance by the operator's maintenance personnel.
- [NTSB CEN10CA386](https://openairdocs.org/ntsb/CEN10CA386.md): Grumman Acft ENG Cor-Schweizer G-164B · Chillicothe, MO · Accident · No injuries · Data collection · Final report · Jul 9, 2010 · N6513K · Substantial damage
  > The pilot's failure to maintain aircraft control during takeoff.
- [NTSB CEN09FA518](https://openairdocs.org/ntsb/CEN09FA518.md): Beech E18S · Eden Prairie, MN · Accident · 2 fatal · Field investigation · Final report · Aug 12, 2009 · N3038C · Substantial damage
  > The pilot’s lack of experience flying the accident make and model of airplane, which led to a loss of control while maneuvering to return to the airport. Contributing to the accident was a partial loss of engine power for undetermined reasons.
- [NTSB DFW08CA168](https://openairdocs.org/ntsb/DFW08CA168.md): Grumman G-164 · Tallulah, LA · Accident · Minor injuries · Data collection · Final report · Jun 23, 2008 · N54229 · Substantial damage
  > The pilot's failure to maintain aircraft control. Contributing to the accident was the pilot's failure to maintain adequate airspeed.
- [NTSB LAX08CA082](https://openairdocs.org/ntsb/LAX08CA082.md): Grumman-Schweizer G-164B · Colfax, WA · Accident · No injuries · Data collection · Final report · Mar 22, 2008 · N63D · Substantial damage
  > The pilot's inadequate compensation for the wind conditions, failure to attain and maintain an adequate airspeed that resulted in a stall mush, and, the subsequent failure to maintain terrain and obstacle clearance during the takeoff initial climb.…

## 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 ('52008')
    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=52008

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