# NTSB investigations: Lycoming IO-720 series, OR

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 LAX07LA280](https://openairdocs.org/ntsb/LAX07LA280.md): Root Sherpa · Scappoose, OR · Accident · Serious injuries · Limited investigation · Final report · Sep 18, 2007 · N1415B · Substantial damage
  > A loss of aircraft pitch control due to the fatigue failure of the fuselage tube structure at the flight control stick gimbal mechanism due to an incomplete weld penetration at the root of the weld.
- [NTSB SEA04LA178](https://openairdocs.org/ntsb/SEA04LA178.md): Helio H800 · Fossil, OR · Accident · Serious injuries · Limited investigation · Final report · Sep 1, 2004 · N4033G · Destroyed
  > The pilot's failure to remove the aileron wing gust locks prior to flight, which resulted in a loss of control during the descent/emergency landing. A factor contributing to the accident was the pilot's inadequate preflight.
- [NTSB SEA87LA016](https://openairdocs.org/ntsb/SEA87LA016.md): Piper PA-24-400 · Oregon City, OR · Accident · Minor injuries · Limited investigation · Final report · Nov 2, 1986 · N8419P · Substantial damage
  > Shortly after takeoff, an eng failure occurred. The plt elected to make a forced lndg on a freeway. During the landing, the acft collided with two vehicles. An inspection revealed an eng oil line had ruptured which led to oil exhaustion. Evidence indicated…
- [NTSB SEA75FYC38](https://openairdocs.org/ntsb/SEA75FYC38.md): Piper PA-24 · Enterprise, OR · Accident · No injuries · Closed · May 20, 1975 · N8487P · 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" = 'OR' 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 ('41546'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41546&state=OR

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