# NTSB investigations: Lycoming GO-480 series, WY

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 SEA92LA155](https://openairdocs.org/ntsb/SEA92LA155.md): Helio H-295 · Laramie, WY · Accident · No injuries · Limited investigation · Final report · Jul 14, 1992 · N68857 · Substantial damage
  > The pilot's failure to maintain runway alignment, and an inadvertent ground-loop. Factors include crosswinds.
- [NTSB DEN88LA123](https://openairdocs.org/ntsb/DEN88LA123.md): Helio H-295 · Encampment, WY · Accident · Serious injuries · Limited investigation · Final report · Jun 5, 1988 · N6454V · Destroyed
  > The plt stated he calculated the density altitude to have been 11,300 ft at takeoff. He said the acft was near max gross wt and that the grass strip he departed from was approx 1,500 ft long. The plt stated 'I was on the on the back side of the pwr curve as…
- [NTSB DEN83LA080](https://openairdocs.org/ntsb/DEN83LA080.md): Helio H-295 · Baggs, WY · Accident · No injuries · Limited investigation · Final report · Mar 12, 1983 · N533LD · Substantial damage
  > The plt reported that he was hauling hay for his stranded horse. The plt was delivering hay, 5 bales per flt & dropping 1 bale at a time. On the 19th drop, after 4 hrs & 15 min of flt time since refueling, the eng lost power. During a forced landing in deep…
- [NTSB DEN78FA040](https://openairdocs.org/ntsb/DEN78FA040.md): Beech D50C · Wheatland, WY · Accident · 4 fatal · Closed · May 4, 1978 · N320Z · Destroyed
- [NTSB DEN78FA024](https://openairdocs.org/ntsb/DEN78FA024.md): Aero Comdr 560A · Glenrock, WY · Accident · 6 fatal · Closed · Feb 19, 1978 · N2639B · Destroyed
- [NTSB DEN73DTC26](https://openairdocs.org/ntsb/DEN73DTC26.md): Helio H-395 · Jackson, WY · Accident · No injuries · Closed · May 25, 1973 · N4198D · Substantial damage
- [NTSB DEN72FTC09](https://openairdocs.org/ntsb/DEN72FTC09.md): Helio H-395 · Jackson, WY · Accident · No injuries · Closed · Oct 6, 1971 · N4198D · Substantial damage
- [NTSB DEN71AD003](https://openairdocs.org/ntsb/DEN71AD003.md): Beech C50 · Kemmerer, WY · Accident · 1 fatal · Closed · Jul 31, 1970 · N7704 · Destroyed

## 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" = 'WY' 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 ('41527'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41527&state=WY

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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.