# NTSB investigations: Lycoming IO-720 series, CA

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 WPR21LA343](https://openairdocs.org/ntsb/WPR21LA343.md): Piper PA-24-400 · Fullerton, CA · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 30, 2021 · N8501P · Substantial damage
  > The pilot’s failure to monitor the environment and maintain a proper glidepath on approach which, resulted in a collision with the airport perimeter fence.
- [NTSB LAX08CA188](https://openairdocs.org/ntsb/LAX08CA188.md): Piper PA-36-375 · Lodi, CA · Accident · Minor injuries · Data collection · Final report · Jun 19, 2008 · N3859E · Substantial damage
  > The pilot's inadequate in-flight decision to continue the flight into an area of obscured visibility and his failure to maintain clearance above obstacles.
- [NTSB LAX03LA129](https://openairdocs.org/ntsb/LAX03LA129.md): Piper PA-36-375 · Herald, CA · Accident · No injuries · Limited investigation · Final report · Apr 5, 2003 · N3859E · 2 aircraft · Minor damage
  > the inadequate visual lookout for other aircraft by both pilots that resulted in a midair collision.
- [NTSB LAX90LA120](https://openairdocs.org/ntsb/LAX90LA120.md): Cessna 414 · Ramona, CA · Accident · No injuries · Limited investigation · Final report · Mar 16, 1990 · N711AG · Destroyed
  > Right main gear scissors assemlby becoming disconnected during landing roll, allowing the right run landing gear to collapse; scissor assembly washers not being replaced as recommended in Cessna aircraft service bulletin ME83-37..
- [NTSB SEA88LA174](https://openairdocs.org/ntsb/SEA88LA174.md): Piper PA-24-400 · Gasquet, CA · Accident · No injuries · Limited investigation · Final report · Sep 9, 1988 · N8541P · Substantial damage
  > The pilot stated that as he turned final approach, intense sunglare was encountered. The plt executed a go-around 'in the blind,' and collided with trees in approach path. The acft remained flyable and the pilot diverted to medford, Oregon.
- [NTSB LAX85FA122](https://openairdocs.org/ntsb/LAX85FA122.md): Piper PA-24-400 · Helendale, CA · Accident · Minor injuries · Field investigation · Final report · Jan 24, 1985 · N3983D · Substantial damage
  > Shortly after initiating an enroute letdown, the acft experienced a catastrophic engine failure at about 4,500 ft MSL. Plt selected a road for an attempted emergency landing, but a car turned onto the road in front of him and forced a diversion to a nearby…
- [NTSB OAK75FVD52](https://openairdocs.org/ntsb/OAK75FVD52.md): Dehavilland DH-104 · Garberville, CA · Accident · Minor injuries · Closed · May 23, 1975 · N153PC · Substantial damage
- [NTSB OAK74IP062](https://openairdocs.org/ntsb/OAK74IP062.md): Dehavilland DH.104 · S.Francisco, CA · Incident · No injuries · Closed · May 16, 1974 · N153PC · Minor damage
- [NTSB LAX71FUA66](https://openairdocs.org/ntsb/LAX71FUA66.md): Piper PA-24 · San Clmente, CA · Accident · No injuries · Closed · Jun 11, 1971 · N8466P · 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" = 'CA' 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=CA

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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.