# Final NTSB investigations: Lycoming HIO-360 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 CEN21LA081](https://openairdocs.org/ntsb/CEN21LA081.md): Schweizer 269C · Rhame, ND · Accident · No injuries · Class 4 · Limited · Final report · Nov 7, 2020 · N2081G · Substantial damage
  > The pilot landed the helicopter on unsuitable terrain, which resulted in a rollover.
- [NTSB CEN14CA513](https://openairdocs.org/ntsb/CEN14CA513.md): Schweizer 269C · Grand Forks, ND · Accident · No injuries · Data collection · Final report · Sep 22, 2014 · N1675U · Substantial damage
  > The flight instructor's inadequate supervision and delayed remedial action during a practice autorotation, which resulted in a tail rotor strike.
- [NTSB CEN11LA397](https://openairdocs.org/ntsb/CEN11LA397.md): Schweizer 269C · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Jun 15, 2011 · N2077E · Substantial damage
  > The student pilot's inadequate recovery from an autorotation and the CFI's delayed remedial action.
- [NTSB CHI06CA168](https://openairdocs.org/ntsb/CHI06CA168.md): Schweizer 269C · Grand Forks, ND · Accident · No injuries · Data collection · Final report · Jun 17, 2006 · N1675U · Substantial damage
  > The dual student's failure to maintain rotor speed during the recovery from the intentional autorotation and the flight instructor's delayed remedial action. Contributing factors were the flight crew's intentional autorotation and dual student's misjudged…
- [NTSB CHI98LA021](https://openairdocs.org/ntsb/CHI98LA021.md): Schweizer 269C · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Oct 15, 1997 · N557DC · Substantial damage
  > the pilot's inadequate preflight planning which resulted in a low fuel state, and his inability to see the wire which the helicopter contacted. Factors associated to the accident were the precautionary landing, the dark night conditions, and the wire which…
- [NTSB CHI94LA316](https://openairdocs.org/ntsb/CHI94LA316.md): Schweizer 269C · Grand Forks, ND · Accident · No injuries · Limited investigation · Final report · Sep 7, 1994 · N61245 · Substantial damage
  > the pilot-in-command's (CFI) delayed recovery from a practice autorotation. A factor associated with the accident was the student pilot's improper autorotation.
- [NTSB CHI94LA138](https://openairdocs.org/ntsb/CHI94LA138.md): Schweizer 269C · Fargo, ND · Accident · Minor injuries · Limited investigation · Final report · Apr 21, 1994 · N3623Y · Substantial damage
  > the pilot in command's improper autorotation technique. A factor associated with the accident is the FAA Inspector's delayed remedial action.
- [NTSB CHI93LA208](https://openairdocs.org/ntsb/CHI93LA208.md): Hughes 269 · Valley City, ND · Accident · No injuries · Limited investigation · Final report · Jun 15, 1993 · N213MS · Substantial damage
  > the pilot-in-command's failure to maintain clearance from a tree during an aerial application manuever.

## 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 ('41524'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41524&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.