# NTSB investigations: Lycoming IGSO-540-B1A, 1979

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 LAX80FJA01](https://openairdocs.org/ntsb/LAX80FJA01.md): Beech 65-80 · Princeville, HI · Accident · No injuries · Closed · Oct 5, 1979 · N1590S · Substantial damage
- [NTSB IAD79IA066](https://openairdocs.org/ntsb/IAD79IA066.md): Beech 65-80 · Washington, DC · Incident · No injuries · Closed · Aug 7, 1979 · N99FA · Minor damage
- [NTSB LAX79FUJ77](https://openairdocs.org/ntsb/LAX79FUJ77.md): Aero Comdr 680-FL · Phoenix, AZ · Accident · Serious injuries · Closed · May 29, 1979 · N783EF · Substantial damage
- [NTSB OAK79IA023](https://openairdocs.org/ntsb/OAK79IA023.md): Beech 65-A80 · San Francisco, CA · Incident · No injuries · Closed · Apr 17, 1979 · N978Q · Minor damage
- [NTSB FTW79FA041](https://openairdocs.org/ntsb/FTW79FA041.md): Aero Comdr 680FP · El Reno, OK · Accident · 3 fatal · Closed · Jan 11, 1979 · N2177M · Destroyed

## 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") = 1979
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41535'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41535&year=1979

---
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.