# NTSB investigations: Hughes Helicopters HUGHES 369D, 2001

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 LAX02LA007](https://openairdocs.org/ntsb/LAX02LA007.md): Hughes 369D · Kahoolawe Isle, HI · Accident · Serious injuries · Limited investigation · Final report · Oct 10, 2001 · N622WA · No damage
  > Inadequate visual surveillance by the pilot before takeoff resulting in liftoff with a deplaning passenger still partially aboard the helicopter. A factor in the accident was the operator's inadequate procedures.
- [NTSB LAX01LA305](https://openairdocs.org/ntsb/LAX01LA305.md): Hughes 369D · Carlsbad, CA · Accident · No injuries · Limited investigation · Final report · Sep 23, 2001 · N268ST · Substantial damage
  > A hard landing due to the dual student's failure to maintain main rotor speed, his improper landing flare, and the flight control interference by the flight instructor.
- [NTSB SEA01TA143](https://openairdocs.org/ntsb/SEA01TA143.md): Boeing Helicopters Div. H500D · Union Gap, WA · Accident · No injuries · Final report · Jul 24, 2001 · N8964T · Substantial damage
  > The complete loss of engine power at cruise for undetermined reasons. Factors include a landing area that was restricted/confined due to adjacent trees, and an intentional abrupt flare resulting in a hard landing.
- [NTSB IAD01TA051](https://openairdocs.org/ntsb/IAD01TA051.md): Hughes 369D · Taylorsville, KY · Accident · Minor injuries · Final report · Apr 29, 2001 · N50AP · Substantial damage
  > the flight instructor's inadequate aircraft control during a practice autorotation which resulted in a hard landing.
- [NTSB CHI01LA119](https://openairdocs.org/ntsb/CHI01LA119.md): Hughes 369D · Du Quoin, IL · Accident · Minor injuries · Limited investigation · Final report · Apr 18, 2001 · N713HT · Destroyed
  > loss of engine power for undetermined reasons, the pilot operating the helicopter outside of the height-velocity curve, and the pilot's failure to maintain control of the helicopter during the emergency landing. Factors relating to the accident were the…
- [NTSB FTW01LA073](https://openairdocs.org/ntsb/FTW01LA073.md): Hughes 369D · Canadian, TX · Accident · No injuries · Limited investigation · Final report · Mar 2, 2001 · N8356F · Substantial damage
  > the helicopter's encounter with loss of tail rotor effectiveness while hovering out-of-ground effect, and the pilot's failure to maintain control. A contributing factor was the soft terrain condition.
- [NTSB LAX01LA079](https://openairdocs.org/ntsb/LAX01LA079.md): Hughes 369D · Ely, NV · Accident · No injuries · Limited investigation · Final report · Jan 23, 2001 · N8353F · Substantial damage
  > The mechanic's inadvertent activation of the bleed valve, which resulted in a loss of engine oil and loss of engine power while in cruise flight.

## 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") = 2001
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470706'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4470706&year=2001

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