# NTSB investigations: Franklin 6A4150 series: Loss of engine power (partial)

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 ANC21LA068](https://openairdocs.org/ntsb/ANC21LA068.md): Stinson 108-1 · Sterling, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 2, 2021 · N8656K · Substantial damage
  > Insufficient available power as a result of low compression in three engine cylinders. Contributing to the accident was the pilot’s decision to takeoff with a slight quartering tailwind.
- [NTSB ERA15LA201](https://openairdocs.org/ntsb/ERA15LA201.md): Universal Stinson 108-1 · Macon, MS · Accident · No injuries · Limited investigation · Final report · Apr 16, 2015 · N9799G · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available information.
- [NTSB ERA13LA269](https://openairdocs.org/ntsb/ERA13LA269.md): Stinson 108 · Elkton, KY · Accident · Minor injuries · Limited investigation · Final report · Jun 4, 2013 · N97592 · Substantial damage
  > The pilot's failure to use carburetor heat during the approach to landing, which resulted in carburetor icing and a partial loss of engine power during a subsequent initial climb.
- [NTSB WPR09LA022](https://openairdocs.org/ntsb/WPR09LA022.md): Stinson 108-1 · Concrete, WA · Accident · 1 fatal · Limited investigation · Final report · Oct 23, 2008 · N97946 · Substantial damage
  > The loss of engine power during initial climb due to the pilot's improper exhaust system maintenance, which resulted in restriction of the carburetor's air intake.

## 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 ('27024')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '342'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/342/cases?engine=27024

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