# NTSB investigations: Pratt & Whitney R1340 series, LA: 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 DFW05CA186](https://openairdocs.org/ntsb/DFW05CA186.md): Grumman-Schweizer G-164A · Tallulah, LA · Accident · Minor injuries · Data collection · Final report · Jul 21, 2005 · N8891H · Substantial damage
  > The partial loss of engine power as result of the fracture of the number five-cylinder exhaust valve rocker arm mounting boss. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW04LA176](https://openairdocs.org/ntsb/FTW04LA176.md): Rockwell S-2R · Jonesville, LA · Accident · Minor injuries · Limited investigation · Final report · Jul 6, 2004 · N8486V · Substantial damage
  > The pilot's failure to maintain clearance with the power lines.
- [NTSB FTW96LA388](https://openairdocs.org/ntsb/FTW96LA388.md): Schweizer G-164B · Ferriday, LA · Accident · No injuries · Limited investigation · Final report · Sep 17, 1996 · N8498K · Substantial damage
  > The partial loss of engine power due to a cracked cylinder head. Factors were the oil leak which restricted the pilot's visual lookout and the lack of suitable terrain for the forced landing.
- [NTSB FTW90DRD07](https://openairdocs.org/ntsb/FTW90DRD07.md): Grumman G-164A · Ville Platte, LA · Accident · No injuries · Final report · May 2, 1990 · N8938H · Destroyed
  > Partial loss of engine power due to a cracked number four cylinder intake rocker box housing. The lack of a suitable forced landing site was a related factor.
- [NTSB FTW84LA253](https://openairdocs.org/ntsb/FTW84LA253.md): Grumman G-164A · Kinder, LA · Accident · No injuries · Limited investigation · Final report · May 26, 1984 · N9693 · Substantial damage
  > The plt reported after the accident that he was dispensing fertilizer and had just flown through a heavy rain shower when the engine began to lose power. A forced landing was made in a flooded rice field and the acft nosed over. The pilot stated that he was…
- [NTSB FTW84LA185](https://openairdocs.org/ntsb/FTW84LA185.md): Grumman G-164A · Eunice, LA · Accident · No injuries · Limited investigation · Final report · Apr 4, 1984 · N9936 · Substantial damage
  > The plt reported that the engine lost power on takeoff and return to the rwy was not possible, so he landed on the edge of a pond. A post accident investigaiton revealed a crack in the #7 cyl head between the spark plug holes. The engine had just gotten a…

## 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" = 'LA' 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=LA

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