# Final NTSB investigations: Piper PA-44-180, 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 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 CEN12LA444](https://openairdocs.org/ntsb/CEN12LA444.md): Piper PA-44-180 · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Jul 15, 2012 · N580ND · Substantial damage
  > The pilot receiving instruction's failure to extend the landing gear and the flight instructor's failure to adequately monitor his student's actions during the approach.
- [NTSB CEN10CA026](https://openairdocs.org/ntsb/CEN10CA026.md): Piper PA-44-180 · Grand Forks, ND · Accident · No injuries · Data collection · Final report · Oct 22, 2009 · N593ND · Substantial damage
  > The flight instructor's failure to ensure the landing gear was extended prior to landing.
- [NTSB CHI96LA202](https://openairdocs.org/ntsb/CHI96LA202.md): Piper PA-44 · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Jun 14, 1996 · N853ND · Substantial damage
  > the instructor pilot used an improper procedure when he demonstrated a rejected takeoff and he misjudged the flare.
- [NTSB CHI95LA046](https://openairdocs.org/ntsb/CHI95LA046.md): Piper PA-44-180 · Dickinson, ND · Accident · No injuries · Limited investigation · Final report · Nov 26, 1994 · N2127D · Substantial damage
  > The flight instructor (CFI) misjudged the flare, which resulted in a hard landing. Factors related to the accident were: the adverse weather (icing) condition, structural ice, windshield ice, darkness, and the lack of visual cues for the pilot to land.
- [NTSB CHI94LA087](https://openairdocs.org/ntsb/CHI94LA087.md): Piper PA-44-180 · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Feb 13, 1994 · N190ND · Substantial damage
  > the improper maintenance installation (cotter pin) by other maintenance personnel. Factors were main landing gear scissors not safetied properly and extension of landing gear not possible by pilot-in-command (CFI).

## 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.aircraft_model_code IN ('7104402', '7104406'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=7104402&state=ND&status=final

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