# NTSB investigations: Pratt & Whitney R1340 series, FL: 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 MIA93LA104](https://openairdocs.org/ntsb/MIA93LA104.md): Air Tractor AT-401 · Fort Pierce, FL · Accident · Minor injuries · Limited investigation · Final report · Apr 17, 1993 · N7316L · Destroyed
  > Failure of the no. 2 cylinder in fatigue for undetermined reasons, over unsuitable terrain. The lack of suitale terrain for the forced landing was a factor.
- [NTSB MIA91LA158](https://openairdocs.org/ntsb/MIA91LA158.md): Air Tractor AT-301 · High Springs, FL · Accident · No injuries · Limited investigation · Final report · Jun 2, 1991 · N8841S · Substantial damage
  > Loss of engine power due to disintegration of the impeller caused by a worn impeller bearing.
- [NTSB MIA88LA147](https://openairdocs.org/ntsb/MIA88LA147.md): Air Tractor AT-301 · Hastings, FL · Accident · Minor injuries · Limited investigation · Final report · Apr 14, 1988 · N8841S · Substantial damage
  > While on an aerial application flt shortly after takeoff, the eng lost power. The plt then dumped the load of fertilizer & landed the acft in a field. After touchdown it nosed over & came to rest. Examination of the eng revealed that the no. four cylinder…

## 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" = 'FL' 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 ('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&state=FL

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