# NTSB investigations: Lycoming IO-540-G1C5

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 WPR25LA298](https://openairdocs.org/ntsb/WPR25LA298.md): Cessna 185A · Ilwaco, WA · Accident · No injuries · Class 4 · Limited · Final report · Sep 27, 2025 · N186X · Substantial damage
  > The pilot's inadequate preflight inspection, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB WPR10FA315](https://openairdocs.org/ntsb/WPR10FA315.md): Aero Commander CallAir · Salt Lake City, UT · Accident · 1 fatal · Field investigation · Final report · Jun 26, 2010 · N7700V · Substantial damage
  > The pilot’s failure to maintain airspeed, which resulted in a stall/spin to the ground.
- [NTSB SEA94LA138](https://openairdocs.org/ntsb/SEA94LA138.md): Siai-Marchetti SF.260B · Prospect, OR · Accident · No injuries · Limited investigation · Final report · Jun 6, 1994 · N943TA · Substantial damage
  > The fracture of a connecting rod. Factors include no suitable forced landing site, and a fence and irrigation system in the field where the forced landing took place.
- [NTSB FTW69F0081](https://openairdocs.org/ntsb/FTW69F0081.md): Callair A-9B · Coy, AR · Accident · Minor injuries · Closed · Jun 3, 1968 · N7273V · 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41643'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41643

---
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.