# NTSB investigations: Lycoming IGSO-540-B1A, 1977

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 ANC78DA006](https://openairdocs.org/ntsb/ANC78DA006.md): Beech 65-A80 · Allakaket, AK · Accident · No injuries · Closed · Dec 23, 1977 · N140RH · Substantial damage
- [NTSB OAK78FVD06](https://openairdocs.org/ntsb/OAK78FVD06.md): Beech 65-80 · Concord, CA · Accident · No injuries · Closed · Oct 26, 1977 · N711DE · Substantial damage
- [NTSB MIA77FA080](https://openairdocs.org/ntsb/MIA77FA080.md): Beech 65-80 · Vancleave, MS · Accident · 3 fatal · Closed · Aug 13, 1977 · N6DG · Destroyed
- [NTSB CHI77FEX30](https://openairdocs.org/ntsb/CHI77FEX30.md): Aero Comdr 680FL · Indianapolis, IN · Accident · No injuries · Closed · May 28, 1977 · N277R · Substantial damage
- [NTSB MIA77DKT56](https://openairdocs.org/ntsb/MIA77DKT56.md): Beech 65 · W.Palm Beach, FL · Accident · No injuries · Closed · Mar 29, 1977 · N580CA · Substantial damage
- [NTSB NYC77FGT07](https://openairdocs.org/ntsb/NYC77FGT07.md): Aero Comdr 680F · Neffsville, PA · Accident · No injuries · Closed · Jan 15, 1977 · N1666C · 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 year(c."eventDate") = 1977
  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=1977

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