# NTSB investigations: Lycoming T-53 series, 2022

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 WPR22LA339](https://openairdocs.org/ntsb/WPR22LA339.md): Bell 205A-1 · Cougar, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 7, 2022 · N66HJ · Substantial damage
  > The helicopter’s encounter with downdrafts during a low-altitude hovering maneuver while dipping for water.
- [NTSB ANC22FA047](https://openairdocs.org/ntsb/ANC22FA047.md): Bell UH1B · Clear, AK · Accident · 1 fatal · Class 3 · Field · Final report · Jun 27, 2022 · N9970F · Destroyed
  > A loss of control for reasons that could not be determined based on the available information.
- [NTSB WPR22LA084](https://openairdocs.org/ntsb/WPR22LA084.md): Bell UH-1E · Gustine, CA · Accident · No injuries · Class 3 · Limited · Final report · Jan 23, 2022 · N333XL · Substantial damage
  > Failure of the 90° gearbox due to the lack of lubricating oil, which resulted in a loss of rotational drive to the tail rotor and a subsequent loss of control of the helicopter.

## 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") = 2022
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41552', '41549', '41587'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41552&year=2022

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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.