# NTSB investigations: Hughes 269B, 1986

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 ANC87LA008](https://openairdocs.org/ntsb/ANC87LA008.md): Hughes 300-269B · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Oct 22, 1986 · N9332F · Substantial damage
  > The helicopter exhausted its fuel supply during climbout. During the ensuing autorotation landing, the rotor speed was allosed to decay and the helcopter spun at touchdown. It rolled over and failed the rotor blades.
- [NTSB CHI86LA236](https://openairdocs.org/ntsb/CHI86LA236.md): Hughes 269B · Baldwin, WI · Accident · No injuries · Limited investigation · Final report · Sep 26, 1986 · N9427F · Substantial damage
  > After picking up his passenger at williams pipeline, minneapolis, Minnesota, the plt flew eastward along interstate 90 enroute to a pipeline near wausau, Wisconsin. While flying at approximatelly 400 feet, the plt and passenger stated that the engine started…
- [NTSB ATL86LA069](https://openairdocs.org/ntsb/ATL86LA069.md): Hughes 269B · Council, NC · Accident · Serious injuries · Limited investigation · Final report · Feb 4, 1986 · N9374F · Destroyed
  > During a control burning operation, the plt experienced a complete eng failure. The plt entered an autorotation and collided with trees. The eng examination disclosed that the #4 connecting rod had failed. The failure was determined to have resulted from…

## 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") = 1986
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4470502'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=4470502&year=1986

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