# NTSB investigations: Pratt & Whitney PT6A series, 2020

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 ERA21LA021](https://openairdocs.org/ntsb/ERA21LA021.md): Beech 99 · Waterville, ME · Accident · No injuries · Class 3 · Limited · Final report · Oct 14, 2020 · N499CZ · Substantial damage
  > A failure of the right main landing gear drag leg support fitting and angle bracket as a result of multiple areas of fatigue cracking.
- [NTSB CEN21LA005](https://openairdocs.org/ntsb/CEN21LA005.md): Air Tractor AT402 · Egypt, AR · Accident · No injuries · Class 4 · Limited · Final report · Oct 2, 2020 · N4540F · Substantial damage
  > The pilot’s failure to maintain clearance from a tree limb during a low-level aerial application flight.
- [NTSB CEN21LA004](https://openairdocs.org/ntsb/CEN21LA004.md): Piper PA46 · Lake Elmo, MN · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 2, 2020 · N62ZM · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB CEN20WA423](https://openairdocs.org/ntsb/CEN20WA423.md): Cessna 208B · Beef Island, British Virgin Islands · Incident · Class 5 · Foreign · Sep 23, 2020 · N967FE
- [NTSB WPR20CA312](https://openairdocs.org/ntsb/WPR20CA312.md): Beechcraft C90A · Fortuna, CA · Accident · No injuries · Class 4 · Data collection · Final report · Aug 31, 2020 · N982SB · Substantial damage
  > A collision with a deer while landing at night.
- [NTSB WPR20LA246](https://openairdocs.org/ntsb/WPR20LA246.md): Air Tractor AT802 · Elgin, NV · Accident · 2 fatal · Class 3 · Limited · Final report · Jul 30, 2020 · N8510M · 2 aircraft · Destroyed
  > The trailing pilot’s failure to maintain separation from the lead airplane during a fire retardant deployment flight, which resulted in the trailing airplane flying through a plume of retardant and the trailing pilot’s subsequent loss of visibility that led…
- [NTSB CEN20LA279](https://openairdocs.org/ntsb/CEN20LA279.md): Air Tractor AT502 · Dalhart, TX · Accident · No injuries · Class 3 · Limited · Final report · Jul 10, 2020 · N61315 · Substantial damage
  > The total loss of engine power due to a failed fuel control unit bearing.
- [NTSB CEN20LA234](https://openairdocs.org/ntsb/CEN20LA234.md): Air Tractor AT402 · Pine Bluff, AR · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 17, 2020 · N1532H · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack, which led to an aerodynamic stall and a loss of airplane control. Contributing was a partial loss of engine power for undetermined reasons.
- [NTSB CEN20CA221](https://openairdocs.org/ntsb/CEN20CA221.md): Air Tractor AT502 · Hiawatha, KS · Accident · No injuries · Class 4 · Data collection · Final report · Jun 8, 2020 · N5092J · Substantial damage
  > The pilot’s decision to attempt the takeoff with a tailwind in high density altitude conditions.
- [NTSB CEN20CA190](https://openairdocs.org/ntsb/CEN20CA190.md): Air Tractor AT502 · Bunkie, LA · Accident · Minor injuries · Class 4 · Data collection · Final report · May 23, 2020 · N571LA · Substantial damage
  > The pilot's failure to maintain directional control during takeoff.
- [NTSB CEN20CA153](https://openairdocs.org/ntsb/CEN20CA153.md): Air Tractor AT 602 · Mamou, LA · Accident · No injuries · Data collection · Final report · Apr 21, 2020 · N653LA · Substantial damage
  > The airplane's encounter with a sunken area during takeoff from a turf runway, which resulted in the airplane becoming prematurely airborne and impacting a tree and then terrain.
- [NTSB WPR20LA128](https://openairdocs.org/ntsb/WPR20LA128.md): Piper PA31T · Billings, MT · Accident · 1 fatal · Class 3 · Limited · Final report · Apr 20, 2020 · N926K · Destroyed
  > The degraded airplane performance after takeoff for reasons that could not be determined from available evidence.
- [NTSB CEN20LA143](https://openairdocs.org/ntsb/CEN20LA143.md): Air Tractor AT 502 · Pecan Gap, TX · Accident · 1 fatal · Class 3 · Limited · Final report · Apr 8, 2020 · N9185D · Destroyed
  > The pilot did not maintain adequate clearance from tree, which resulted in a collision with a tree and subsequent impact with terrain.
- [NTSB CEN20LA122](https://openairdocs.org/ntsb/CEN20LA122.md): Cessna 208 · LaCrosse, KS · Accident · 1 fatal · Class 3 · Limited · Final report · Mar 17, 2020 · N274PM · Destroyed
  > An infight loss of control as a result of pilot impairment, the cause of which could not be determined.
- [NTSB CEN20CA103](https://openairdocs.org/ntsb/CEN20CA103.md): Air Tractor AT 602 · Bunkie, LA · Accident · No injuries · Data collection · Final report · Feb 22, 2020 · N602BK · Substantial damage
  > The pilot's failure to lock the tailwheel before landing, which resulted in his loss of directional control during the landing roll, a runway excursion onto soft ground, and a subsequent ground loop.
- [NTSB CEN20LA083](https://openairdocs.org/ntsb/CEN20LA083.md): Piaggio P180 · Broomfield, CO · Accident · No injuries · Class 3 · Limited · Final report · Feb 13, 2020 · N677P · Substantial damage
  > The pilot’s loss of directional control on the snow-covered runway, which resulted in a runway excursion.
- [NTSB CEN20LA084](https://openairdocs.org/ntsb/CEN20LA084.md): Beech 200 · St Louis, MO · Accident · No injuries · Class 3 · Limited · Final report · Feb 6, 2020 · N405PT · Substantial damage
  > The pilot’s loss of directional control and the subsequent nose landing gear collapse of for undetermined reasons.
- [NTSB ANC20LA020](https://openairdocs.org/ntsb/ANC20LA020.md): Cessna 208 · Hooper Bay, AK · Accident · No injuries · Class 3 · Limited · Final report · Feb 5, 2020 · N454SF · Substantial damage
  > The pilot’s decision to depart from a contaminated runway, and his failure to make a timely decision to abort the takeoff when the airplane was not accelerating as expected. Contributing to the accident was the pilot’s decision to depart in limited visibility…
- [NTSB ANC20LA015](https://openairdocs.org/ntsb/ANC20LA015.md): Beech 200 · Unalaska, AK · Accident · Serious injuries · Class 3 · Limited · Final report · Jan 16, 2020 · N547LM · Substantial damage
  > The pilot’s improper decision to takeoff downwind and to load the airplane beyond its allowable gross weight and center of gravity limits, which resulted in an aerodynamic stall and loss of control. Contributing to the accident was the inadequacy of the…

## 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 year(c."eventDate") = 2020
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52032', '52034'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52032&year=2020

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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.