# Final NTSB investigations, ND: Not determined, general

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 CEN22LA102](https://openairdocs.org/ntsb/CEN22LA102.md): Piper PA-24-250 · Grand Forks, ND · Accident · No injuries · Class 3 · Limited · Final report · Jan 2, 2022 · N5844P · Substantial damage
  > Failure of the landing gear to properly extend before landing for reasons that could not be determined.
- [NTSB CEN22LA007](https://openairdocs.org/ntsb/CEN22LA007.md): Soneral L2 · Minot, ND · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 3, 2021 · N9115Y · Substantial damage
  > The pilot’s failure to maintain proper airspeed and exceedance of the airplane’s critical angle of attack on final landing approach, which resulted in an aerodynamic stall and hard landing. Contributing to the accident was the pilot’s inexperience with the…
- [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 CEN14FA400](https://openairdocs.org/ntsb/CEN14FA400.md): Larry Ketterling FEW P-51 Mustang · Lisbon, ND · Accident · 1 fatal · Field investigation · Final report · Aug 1, 2014 · N116LK · Destroyed
  > The partial loss of engine power for a reason that could not be determined because of extensive impact and postcrash fire damage, and the pilot's failure to maintain adequate airspeed, which resulted in the airplane's wing exceeding its critical…
- [NTSB CEN12LA516](https://openairdocs.org/ntsb/CEN12LA516.md): Piper PA-44-180 · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Aug 2, 2012 · N586ND · Substantial damage
  > The loss of directional control during landing roll, which resulted in a runway excursion. The reason for the loss of directional control could not be determined because postaccident examination did not reveal any malfunctions or anomalies that would have…
- [NTSB CEN12LA458](https://openairdocs.org/ntsb/CEN12LA458.md): Grumman G-164A · Egeland, ND · Accident · No injuries · Limited investigation · Final report · Jul 7, 2012 · N6583 · Substantial damage
  > The partial loss of engine power for reasons that could not be determined during postaccident examinations.
- [NTSB CEN11LA598](https://openairdocs.org/ntsb/CEN11LA598.md): Air Tractor AT-301 · Edgeley, ND · Accident · No injuries · Limited investigation · Final report · Aug 13, 2011 · N73071 · Substantial damage
  > The loss of engine power for reasons that could not be determined because postaccident examination of the airplane and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN11LA541](https://openairdocs.org/ntsb/CEN11LA541.md): Weatherly 620B · Hettinger, ND · Accident · No injuries · Limited investigation · Final report · Jul 30, 2011 · N90181 · Substantial damage
  > Internal failure of the engine for undetermined reasons.
- [NTSB CEN10CA228](https://openairdocs.org/ntsb/CEN10CA228.md): Piper PA-32R-300 · Jamestown, ND · Accident · No injuries · Data collection · Final report · Apr 26, 2010 · N5868V · Substantial damage
  > The pilot's failure to lower the landing gear, resulting in a gear-up landing.
- [NTSB CEN09CA452](https://openairdocs.org/ntsb/CEN09CA452.md): Weatherly 620B · New England, ND · Accident · Minor injuries · Data collection · Final report · Jul 21, 2009 · N2027K · Substantial damage
  > The loss of engine power for undetermined reasons while maneuvering at low altitude.

## 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '05000000'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/05000000/cases?state=ND&status=final

---
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.