# NTSB investigations: Lycoming GO-480 series, WA

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 WPR10LA069](https://openairdocs.org/ntsb/WPR10LA069.md): Mahre Starduster SA300 · Zillah, WA · Accident · Serious injuries · Limited investigation · Final report · Nov 29, 2009 · N480DM · Substantial damage
  > The pilot’s failure to maintain aircraft control during a low-altitude maneuver.
- [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 SEA01LA067](https://openairdocs.org/ntsb/SEA01LA067.md): Republic RC-3 · Carr Inlet, WA · Accident · No injuries · Limited investigation · Final report · Mar 23, 2001 · N6295K · Substantial damage
  > Fatigue fracture of the propeller attaching bolts resulting in the total separation of the propeller assembly from the crankshaft flange.
- [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 SEA91LA244](https://openairdocs.org/ntsb/SEA91LA244.md): Grumman G-44 · Metaline Falls, WA · Accident · No injuries · Limited investigation · Final report · Sep 7, 1991 · N63350 · Substantial damage
  > The pilot's inadvertent use of the parking brake. A factor contributing to the accident was the absence of the parking brake on the landing checklist.
- [NTSB SEA91LA034](https://openairdocs.org/ntsb/SEA91LA034.md): Beech D50C · Snohomish, WA · Accident · 1 fatal · Limited investigation · Final report · Dec 15, 1990 · N833Q · Substantial damage
  > The obstruction (protruding door support bracket) in the doorway of the aircraft; failure of the company/operator personnel, the pilot, and the skydivers to assure that the doorway was clear of obstructions; and subsequent snagging of the d-ring, which…
- [NTSB SEA80FYE19](https://openairdocs.org/ntsb/SEA80FYE19.md): Republic RC-3 · Mckenna, WA · Accident · Serious injuries · Closed · Feb 28, 1980 · N87576 · Substantial damage
- [NTSB SEA70FWD20](https://openairdocs.org/ntsb/SEA70FWD20.md): Aero Comdr 560 · Bellevue, WA · Accident · No injuries · Closed · Jun 19, 1970 · N2661R · 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" = 'WA' 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=WA

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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.