# NTSB investigations: Lycoming IO-720 series: Loss of engine power(total) - mech failure/malf

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 CHI97LA105](https://openairdocs.org/ntsb/CHI97LA105.md): Piper PA-24 · Elk Falls, KS · Accident · No injuries · Limited investigation · Final report · Apr 12, 1997 · N8739P · Substantial damage
  > fracture of the fuel selector assembly which resulted in fuel starvation.
- [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 MIA86LA179](https://openairdocs.org/ntsb/MIA86LA179.md): Piper PA-24-400 · St.Augustine, FL · Accident · No injuries · Limited investigation · Final report · Jun 11, 1986 · N8495P · Substantial damage
  > A forced ldg was made after the eng failed while cruising at 8000 ft. an exam of the eng revealed that the top of the crankcase was cracked & a hole was in the top of the case at the no. 2 cylinder. The bottom of the cap of the no. 2 connecting rod had broken…
- [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 c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41546')
    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" = 351))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41546&occurrence=351

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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.