# NTSB investigations: Pratt & Whitney R1340 series, 1997: Loss of engine power(partial) - mech failure/malf

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 ATL97LA127](https://openairdocs.org/ntsb/ATL97LA127.md): Air Tractor AT-301 · Clewiston, FL · Accident · No injuries · Limited investigation · Final report · Aug 29, 1997 · N7307C · Substantial damage
  > The crack in the #8 cylinder head which led to the loss of power. A factor was the soft terrain.
- [NTSB FTW97LA322](https://openairdocs.org/ntsb/FTW97LA322.md): Rockwell S-2R · Columbus, NM · Accident · Serious injuries · Limited investigation · Final report · Aug 21, 1997 · N4893X · Substantial damage
  > a loss of engine power due to failure of an exhaust side rocker box and valve mechanism, and pilot incapacitation due to loss of consciousness after being struck in the head by parts separating from the engine.
- [NTSB MIA97LA190](https://openairdocs.org/ntsb/MIA97LA190.md): Schweizer G-164B · Edwards, MS · Accident · No injuries · Limited investigation · Final report · Jun 20, 1997 · N6816Q · Substantial damage
  > failure of the distributor drive gear in the right magneto, resulting in loss of engine power and a forced landing. The lack of suitable terrain for a forced landing was a related factor.

## 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") = 1997
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52016')
    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" = 352))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52016&occurrence=352&year=1997

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