# Final NTSB investigations: Sikorsky CH-54A

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 LAX98FA236](https://openairdocs.org/ntsb/LAX98FA236.md): Sikorsky CH-54A · Yucca Valley, CA · Accident · 3 fatal · Field investigation · Final report · Jul 18, 1998 · N64KL · Destroyed
  > An in-flight main rotor blade spar separation as a result of the pilot-in-command's decision to continue to fly the aircraft after it had failed an AD directed BIM check. Factors were the failure of the operator's chief pilot to maintain proper supervision…
- [NTSB LAX95LA305](https://openairdocs.org/ntsb/LAX95LA305.md): Sikorsky CH-54A · Emigrant Gap, CA · Accident · No injuries · Limited investigation · Final report · Aug 26, 1995 · N64AR · Destroyed
  > a compressor stall in the right engine for an unknown reason, which resulted in a loss of power in that engine; and inadequate crew coordination between the pilot and copilot, which resulted in their failure to ensure that the external load was promptly…

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('8142501'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=8142501&status=final

---
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.