# NTSB investigations: Yakovlev YAK 52: 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 WPR18LA127](https://openairdocs.org/ntsb/WPR18LA127.md): Yakovlev YAK 52 · Hillsboro, OR · Accident · Serious injuries · Limited investigation · Final report · Apr 26, 2018 · N2YK · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or failures that would have precluded normal operation. Contributing to the accident was…
- [NTSB WPR17LA094](https://openairdocs.org/ntsb/WPR17LA094.md): Yakovlev YAK 52 · Porterville, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 29, 2017 · N132MD · Substantial damage
  > A partial loss of engine power due to contaminants in the fuel system that decreased the fuel flow, the source of which could not be determined.

## 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.aircraft_model_code IN ('9830220')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '342' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/342/sequence?model=9830220

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