# NTSB investigations: Stinson 108-3: 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 CEN26LA087](https://openairdocs.org/ntsb/CEN26LA087.md): Stinson 108-3 · Gypsum, CO · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Jan 11, 2026 · N6725M · Substantial damage
  > On January 11, 2026, at 1408 mountain standard time, a Stinson 108-3 airplane, N6725M, sustained substantial damage when it was involved in an accident near Gypsum, Colorado. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of…
- [NTSB CEN19LA281](https://openairdocs.org/ntsb/CEN19LA281.md): Stinson 108 · Grand Rapids, MN · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 21, 2019 · N647C · Substantial damage
  > A loss of engine power after takeoff for undetermined reasons.
- [NTSB WPR19LA207](https://openairdocs.org/ntsb/WPR19LA207.md): Stinson 108 · Klamath Falls, OR · Accident · No injuries · Class 3 · Limited · Final report · Jul 9, 2019 · N6642M · Substantial damage
  > The mechanic’s failure to identify an engine performance issue, which led to a partial loss of engine power. Contributing to the accident was the pilot’s decision to operate the airplane with a known mechanical deficiency.
- [NTSB WPR15LA223](https://openairdocs.org/ntsb/WPR15LA223.md): Stinson 108 - 3 · North Las Vegas, NV · Accident · No injuries · Limited investigation · Final report · Jul 25, 2015 · N6152M · Substantial damage
  > The partial loss of engine power due to a degraded cylinder exhaust valve seal, which resulted in low cylinder compression.
- [NTSB WPR13LA320](https://openairdocs.org/ntsb/WPR13LA320.md): Stinson 108-3 · Blackfoot, ID · Accident · No injuries · Limited investigation · Final report · Jul 10, 2013 · N703C · Substantial damage
  > A partial loss of engine power during cruise flight for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN13LA305](https://openairdocs.org/ntsb/CEN13LA305.md): Stinson 108-3 · Beaumont, TX · Accident · Minor injuries · Limited investigation · Final report · May 23, 2013 · N121CM · Substantial damage
  > The lack of a forward clamp on the carburetor heat box rubber boot, which allowed the boot to be ingested into the inlet of the carburetor heat box, restricting the airflow and leading to a subsequent partial loss of engine power.

## 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.aircraft_model_code IN ('9230408')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '342' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/342/sequence?model=9230408

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