# Final NTSB investigations: Pratt & Whitney PT6A series, ND

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 CEN23LA377](https://openairdocs.org/ntsb/CEN23LA377.md): Air Tractor AT-502 · Great Bend, ND · Accident · No injuries · Class 3 · Limited · Final report · Aug 15, 2023 · N9082C · Substantial damage
  > The pilot’s hard landing on a road and subsequent loss of control, resulting in the airplane impacting a ditch.
- [NTSB WPR18LA234](https://openairdocs.org/ntsb/WPR18LA234.md): Air Tractor AT 400 · Grand Forks, ND · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 21, 2018 · N7300M · Substantial damage
  > The loss of engine power while maneuvering due to the failure of the power turbine blade assembly for reasons that could not be determined based on available evidence.
- [NTSB CEN18LA249](https://openairdocs.org/ntsb/CEN18LA249.md): Air Tractor AT502 · Tappen, ND · Accident · No injuries · Limited investigation · Final report · Jun 28, 2018 · N502S · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN16LA089](https://openairdocs.org/ntsb/CEN16LA089.md): Cessna 208B · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Nov 11, 2015 · N617ST · Substantial damage
  > The pilot's failure to properly calculate the airplane's weight and balance and center of gravity, which resulted in the tail striking the ground.
- [NTSB CEN13LA353](https://openairdocs.org/ntsb/CEN13LA353.md): Air Tractor AT-802A · Minot, ND · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 2013 · N8522S · Substantial damage
  > The pilot’s failure to maintain adequate clearance from trees during an aerial application flight.
- [NTSB CEN11LA593](https://openairdocs.org/ntsb/CEN11LA593.md): Air Tractor AT-400 · Monango, ND · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 2011 · N23720 · Substantial damage
  > The pilot did not maintain adequate separation from a tree during the aerial-application flight.
- [NTSB CHI08CA201](https://openairdocs.org/ntsb/CHI08CA201.md): Grumman G-164D · Esmond, ND · Accident · Minor injuries · Data collection · Final report · Jul 21, 2008 · N996QC · Substantial damage
  > The pilot's delay in advancing the throttle during the takeoff which resulted in inadequate airspeed and the subsequent stall/mush. Factors associated with the accident were the leaking hopper, the pilot continuing to operate the airplane with the known…
- [NTSB CHI04LA278](https://openairdocs.org/ntsb/CHI04LA278.md): Cessna 208B · Gwinner, ND · Accident · Serious injuries · Limited investigation · Final report · Sep 24, 2004 · N7392B · Substantial damage
  > The pilot's failure to maintain altitude during the circling maneuver. Contributing factors were the pilot's improper decision to execute the approach when weather conditions were below minimums and the low light (dark night) conditions.
- [NTSB CHI00LA177](https://openairdocs.org/ntsb/CHI00LA177.md): Air Tractor AT-502 · Portland, ND · Accident · No injuries · Limited investigation · Final report · Jun 29, 2000 · N91891 · Substantial damage
  > the pilot intentionally operated the airplane with known damage on the left wing which resulted in the pilot's inability to maintain control of the airplane during takeoff.
- [NTSB CHI98LA243](https://openairdocs.org/ntsb/CHI98LA243.md): Air Tractor AT-502 · Minto, ND · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 1998 · N9185C · Substantial damage
  > the pilot's selection of unsuitable terrain for takeoff. Factors were wet and soft runway conditions, and a ditch and the end of the overrun area.

## 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."eventStateOrRegion" = 'ND' AND c."eventCountry" = 'USA'
  AND c."completionStatus" = 'Completed'
  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&state=ND&status=final

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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.