# NTSB investigations: Lycoming GO-480 series: Loss of engine power

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 SEA07LA009](https://openairdocs.org/ntsb/SEA07LA009.md): Helio H-295 · Lake Isabel, WA · Accident · Serious injuries · Limited investigation · Final report · Oct 21, 2006 · N6471V · Substantial damage
  > The pilot's failure to maintain airspeed while maneuvering for a precautionary landing following a partial loss of engine power, which resulted in an inadvertent stall/mush and subsequent hard landing. A contributing factor was the partial loss of engine…
- [NTSB SEA96FA201](https://openairdocs.org/ntsb/SEA96FA201.md): Beech D50 · Seattle, WA · Accident · 1 fatal · Field investigation · Final report · Aug 24, 1996 · N567SF · Substantial damage
  > failure of the pilot to follow proper emergency procedures (properly configure the airplane and feather the appropriate propeller) after loosing power in one engine, which resulted in his inability to maintain altitude until reaching an airport. Factors…
- [NTSB NYC91LA195](https://openairdocs.org/ntsb/NYC91LA195.md): Beech C50 · Salem, OH · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1991 · N9674R · Substantial damage
  > Engine failure as a result of improper maintenance and failure of the propeller feathering system for an undetermined reason. Factors were aircraft poor climb performance as resulted of the unfeathered propeller and obstructions which prevented a return to…
- [NTSB ANC90LA138](https://openairdocs.org/ntsb/ANC90LA138.md): Helio HE-3/H-295 · Arctic Village, AK · Accident · No injuries · Limited investigation · Final report · Aug 9, 1990 · N6481V · Substantial damage
  > The pilot in commands improper flare during a forced landing resulting in a hard landing.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41527')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 350))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41527&occurrence=350

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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.