# NTSB investigations: Lycoming HIO-360 series, TN

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 GAA19CA463](https://openairdocs.org/ntsb/GAA19CA463.md): Hughes 269A · Springfield, TN · Accident · No injuries · Data collection · Final report · Jul 24, 2019 · N269RR · Substantial damage
  > The pilot’s failure to maintain helicopter control and a loss of tail rotor effectiveness while hover-taxiing and turning toward a taxiway in gusting crosswind conditions, which resulted in a dynamic rollover.
- [NTSB ERA12LA368](https://openairdocs.org/ntsb/ERA12LA368.md): Schweizer 269C · Piney Flats, TN · Accident · No injuries · Limited investigation · Final report · May 24, 2012 · N760DA · Substantial damage
  > The mechanic’s improper maintenance of the main transmission aft pinion nut and belt drive system, which resulted in the uncoupling of the tail rotor driveshaft and the subsequent loss of helicopter control.
- [NTSB ATL97LA114](https://openairdocs.org/ntsb/ATL97LA114.md): Hughes 269A · Dandridge, TN · Accident · No injuries · Limited investigation · Final report · Aug 10, 1997 · N7050D · Substantial damage
  > the pilot's failure to properly plan the approach for landing, which led to a loss of tail rotor authority and directional control, while close to the ground. The tailwind was a related factor.
- [NTSB ATL81FLT08](https://openairdocs.org/ntsb/ATL81FLT08.md): Hughes 269C · Ridgely, TN · Accident · No injuries · Closed · May 3, 1981 · N7487F · Substantial damage
- [NTSB ATL80FLT07](https://openairdocs.org/ntsb/ATL80FLT07.md): Hughes 269C · Martin, TN · Accident · No injuries · Closed · May 3, 1980 · N9665F · Substantial damage

## 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" = 'TN' AND c."eventCountry" = 'USA'
  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=TN

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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.