# NTSB investigations: Cessna U206G: Loss of engine power(total) - 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 CHI98FA106](https://openairdocs.org/ntsb/CHI98FA106.md): Cessna U206G · Grain Valley, MO · Accident · 6 fatal · Field investigation · Final report · Mar 21, 1998 · N506SD · Destroyed
  > Pilot's inadequate preflight, the partial loss of oil and the resulting rod failure. A factor was the pilot's failure to maintain flying speed.
- [NTSB ANC97LA112](https://openairdocs.org/ntsb/ANC97LA112.md): Cessna 206 · Palmer, AK · Accident · Serious injuries · Limited investigation · Final report · Jul 26, 1997 · N9412Z · Substantial damage
  > A fatigue failure of the engine crankshaft, and an inadequate engine cylinder replacement by maintenance personnel. A factor in the accident was unsuitable terrain for a forced landing.
- [NTSB ANC94LA097](https://openairdocs.org/ntsb/ANC94LA097.md): Cessna 206 · Mosquito Flats, AK · Accident · No injuries · Limited investigation · Final report · Aug 5, 1994 · N5200X · Substantial damage
  > The missing number 6 cylinder piston pin cap and the subsequent failure of the number 6 cylinder connecting rod cap. Also, the lack of suitable landing area for the forced landing.
- [NTSB ATL92LA072](https://openairdocs.org/ntsb/ATL92LA072.md): Cessna U206G · Lafayette, TN · Accident · No injuries · Limited investigation · Final report · Mar 29, 1992 · N9679G · Substantial damage
  > The pilot's inadequate preflight inspections which resulted in oil starvation and eventual failure of the engine. A factor was the rough terrain where the airplane was force landed.
- [NTSB ANC89FA041](https://openairdocs.org/ntsb/ANC89FA041.md): Cessna U206G · Fairbanks, AK · Accident · 1 fatal · Field investigation · Final report · Feb 9, 1989 · N756EA · Destroyed
  > Separation of the torsional vibration dampers from the crankshaft boss.
- [NTSB FTW87FA190](https://openairdocs.org/ntsb/FTW87FA190.md): Cessna 206G · Georgetown, TX · Accident · No injuries · Field investigation · Final report · Aug 7, 1987 · N8873Q · Substantial damage
  > Teardown of the aircraft engine revealed that the engine counterweight vibration damper assembly was out of tolerance. This allowed excessive engine vibration which resulted in failure of the camshaft drive gear and total engine failure. The pilot executed a…
- [NTSB ANC85LA073](https://openairdocs.org/ntsb/ANC85LA073.md): Cessna 206 · Seward, AK · Accident · No injuries · Limited investigation · Final report · Apr 26, 1985 · N4863C · Substantial damage
  > The plt stated the acft was in cruise flt when the engine quit. The plt attempted an emergency landing on the beach but crashed in the water. The acft engine was not located for several days after the accident. According to the operator the engine failure was…
- [NTSB ANC82FA094](https://openairdocs.org/ntsb/ANC82FA094.md): Cessna U206 G · Near Kotzebue, AK · Accident · 4 fatal · Field investigation · Final report · Sep 21, 1982 · N5331X
  > Aircraft engine lost power over water of hotham inlet on an air taxi flight. Due to low altitude pilot had to ditch the aircraft. Aircraft sank almost immediately. Because of pilot's radio call two passengers were rescued.

## 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 ('2073356', '2073315', '2073314')
    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" = 351))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=2073356&occurrence=351

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