Cessna U206C N29137
9 June 2014 · Chitina, Alaska, United States · No injuries
Summary
On 9 June 2014 at about 21:05 local time, a Cessna U206C registered N29137, operated by Copper Valley Air Service, was involved in an accident near Chitina, Alaska, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 21:05
- Classification
- Accident
- Location
- Chitina, Alaska, United States
- Coordinates
- 61.5156, -144.4403
- Aircraft
- Cessna U206C
- Registration
- N29137
- Category
- Airplane
- Year built
- 1968
- Engines
- 1
- Operator
- Copper Valley Air Service
- Operating rule
- Part 135: Air Taxi & Commuter
- Phase of flight
- Not recorded
- Route
- Gulkana → McCarthy
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- ANC14LA040
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
The failure of the engine’s No. 1 piston connecting rod retaining bolts due to fatigue, which resulted in a total loss of engine power during cruise flight.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
While in level cruise on the scheduled passenger flight, the airline transport pilot heard a loud "bang," followed by a quieter "bang" and a total loss of engine power. He conducted a forced landing to a densely-wooded area, during which the airplane nosed over, resulting in substantial damage to the wings and horizontal stabilizer. A visual examination of the engine revealed a crack in the crankcase. A subsequent examination of the No. 1 piston assembly revealed fatigue fractures in both connecting rod retaining bolts. Additional internal damage to the engine was found to be consistent with damage caused by the release of the connecting rod from the crankcase.
Quoted verbatim from the NTSB record.
Other Cessna U206C accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 2 Apr 2011 | Cessna U206C | Bridgeport, Connecticut, United States | Hagerstown Aircraft Services Inc | No injuries | - |
| 25 May 2009 | Cessna U206C | Brainerd, Minnesota, United States | - | No injuries | - |
| 9 Apr 2008 | Cessna U206C | Nazca, Peru | Aero Ica | Fatal | 5 |
| 8 Jun 2008 | Cessna U206C | Fremont, Ohio, United States | - | Fatal | 6 |
| 1 Oct 2008 | Cessna U206C | Anchorage, Alaska, United States | Blake Thomas K | Fatal | 2 |
| 20 Sep 2023 | Cessna U206C | Challis, Idaho, United States | Middle Fork Aviation Inc | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 6 Sep 2014 | Cessna U206B | Gustavus, Alaska, United States | Fjord Flying Service | No injuries | - |
| 11 Jun 2014 | Airbus/Eurocopter AS 350 B3 | Anchorage, Alaska, United States | Can See Aviation LLC | No injuries | - |
| 22 Apr 2014 | Piper PA 18A 150 | Kenai, Alaska, United States | - | No injuries | - |
| 6 Feb 2014 | Craig C Walls SNOWYRIVER SPECIAL | Wasilla, Alaska, United States | - | Minor injuries | - |
| 7 Sep 2014 | Cessna 185 | Gakona, Alaska, United States | Copper Valley Air Service LLC | No injuries | - |
| 13 Sep 2014 | Cessna 180H | Nenana, Alaska, United States | - | No injuries | - |