# NTSB investigations: Pratt & Whitney R-2800 series: Loss of engine power(partial) - nonmechanical

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 CHI93FA296](https://openairdocs.org/ntsb/CHI93FA296.md): Grumman G58A · Oshkosh, WI · Accident · Serious injuries · Field investigation · Final report · Aug 1, 1993 · N3025 · Substantial damage
  > The pilot-in-command's inadvertent use of the mixture resulting in a lean mixture.
- [NTSB LAX85LA235](https://openairdocs.org/ntsb/LAX85LA235.md): Lockheed PV-2 · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · May 1, 1985 · N7415C · Substantial damage
  > Following a dural engine chang, the plt test flew the acft. On initial climb, at about 500 ft AGL, both engines began backfiring violently & lost power. According to the plt, power sufficient for flt could not be obtained, & a forced ldg was made about 0.75…

## 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 ('52026')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 354))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52026&occurrence=354

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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.