# NTSB investigations: Lycoming IO-720 series, 1985

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 FTW85FRD03](https://openairdocs.org/ntsb/FTW85FRD03.md): Advanced Technology Predator 480 · Welsh, LA · Accident · Minor injuries · Final report · Aug 21, 1985 · N480AG · Destroyed
  > The acft impacted the terrain in an uncontrolled descent during the initial takeoff climb. The plt reported that after takeoff at an alt of aprx 20 ft AGL, the acft rolled 20 to 25 degs to the right. After correcting for the roll, the plt stated, the acft…
- [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…

## 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 year(c."eventDate") = 1985
  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&year=1985

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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.