# NTSB investigations: Lycoming TIO-540-AJ1A: Loss of engine power (partial)

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 CEN26LA223](https://openairdocs.org/ntsb/CEN26LA223.md): Cessna T206H · Bryant, AR · Accident · No injuries · Class 3 · Limited · Preliminary report · Jun 11, 2026 · N72RK · Substantial damage
  > On June 10, 2026, about 1223 central daylight time, a Cessna T206H airplane, N72RK, was substantially damaged when it was involved in an accident near Bryant, Arkansas. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal…
- [NTSB ERA14LA389](https://openairdocs.org/ntsb/ERA14LA389.md): Cessna T206H · Wiggins, MS · Accident · Minor injuries · Limited investigation · Final report · Aug 14, 2014 · N1229M · Substantial damage
  > A loosening of the engine throttle cable from its support clamp during flight, which resulted in a loss of throttle control.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('42004')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '342'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/342/cases?engine=42004

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