# NTSB investigations: Lycoming IO-540-AB1A5, CA

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 ANC26FA039](https://openairdocs.org/ntsb/ANC26FA039.md): Cessna 182T · Armistead, CA · Accident · 2 fatal · Class 3 · Field · Preliminary report · May 7, 2026 · N227TF · Substantial damage
  > On May 7, 2026, about 1055 pacific daylight time (PDT), a Cessna 182T airplane, N227TF, was destroyed when it was involved in an accident near Armistead, California. The flight instructor and the pilot receiving instruction were fatally injured. The airplane…
- [NTSB WPR21FA048](https://openairdocs.org/ntsb/WPR21FA048.md): Cessna 182 · Los Angeles, CA · Accident · 1 fatal · Class 3 · Field · Final report · Nov 12, 2020 · N939CP · Destroyed
  > Maintenance personnel’s failure to properly secure the throttle control hardware during recent maintenance, which resulted in its disconnection and a subsequent loss of engine power on approach for landing.
- [NTSB GAA17CA048](https://openairdocs.org/ntsb/GAA17CA048.md): Cessna 182 · Palo Alto, CA · Accident · No injuries · Data collection · Final report · Oct 26, 2016 · N387CS · Substantial damage
  > The pilot's failure to perform a go-around when he recognized that the airplane was high and fast during the final approach, which resulted in an improper landing flare and a hard landing.
- [NTSB WPR13LA286](https://openairdocs.org/ntsb/WPR13LA286.md): Cessna 182T · San Diego, CA · Accident · No injuries · Limited investigation · Final report · Jun 24, 2013 · N411CP · 2 aircraft · Substantial damage
  > Both pilots’ failure to maintain a proper visual lookout while taxiing during nighttime conditions, which resulted in an on-ground collision.

## 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."eventStateOrRegion" = 'CA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41808'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41808&state=CA

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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.