# NTSB investigations: Franklin 6VS-335 series: Loss of engine power

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 NYC99LA146](https://openairdocs.org/ntsb/NYC99LA146.md): Hiller UH-12C · Delphos, OH · Accident · No injuries · Limited investigation · Final report · Jun 16, 1999 · N57CR · Substantial damage
  > A blocked fuel line, from an unknown object, that resulted in fuel starvation, and total loss of engine power. A factor in the accident was the pilot's failure to maintain rotor rpm during the autorotation.
- [NTSB SEA95LA022](https://openairdocs.org/ntsb/SEA95LA022.md): Hiller UH-12C · Twisp, WA · Accident · No injuries · Limited investigation · Final report · Nov 28, 1994 · N54594 · Substantial damage
  > An unexplained loss of power and the student pilot's delayed application of collective during the landing flare.
- [NTSB FTW94LA125](https://openairdocs.org/ntsb/FTW94LA125.md): Hiller UH-12 · Alvin, TX · Accident · Minor injuries · Limited investigation · Final report · Apr 16, 1994 · N41319 · Substantial damage
  > The pilot's failure to maintain rotor speed, delay of the flare, and the improper touchdown. A factor was the loss of engine power for undetermined reasons.
- [NTSB SEA83LA132](https://openairdocs.org/ntsb/SEA83LA132.md): Hiller UH-12B · Jerome, ID · Accident · No injuries · Limited investigation · Final report · Jun 23, 1983 · N245C · Substantial damage
  > The acft was destroyed by fire after a forced landing due to pwr loss. The pilot stated that he was en route home after an aerial application mission when the engine lost power. He made an auto-rotation downwind and after exiting the acft noticed an engine…

## 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 ('27040')
    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" = 350))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=27040&occurrence=350

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