Cessna 207 N70076
18 November 1995 · Aniak, Alaska, United States · No injuries
Summary
On 18 November 1995 at about 17:30 local time, a Cessna 207 registered N70076 was involved in an accident near Aniak, 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 17:30
- Classification
- Accident
- Location
- Aniak, Alaska, United States
- Coordinates
- 61.1993, -158.6003
- Aircraft
- Cessna 207
- Registration
- N70076
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Positioning
- Phase of flight
- Not recorded
- Route
- Bethel → Anchorage
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- ANC96LA017
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
fatigue failure of the engine crankshaft at the number 2 main bearing journal, where rubbing contact had occurred with the number 2 main bearing. A factor relating to the accident was: the lack of suitable terrain for an emergency landing.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
During cruise flight, the pilot noted a loss in engine RPM and oil pressure at the same time. He performed an emergency landing on a frozen lake. During the landing roll, the right wingtip struck a spruce tree, and the airplane was substantially damaged. During an examination, the accessory section of the engine did not rotate, when the propeller was turned by hand. A teardown of the engine revealed that the crankshaft was fractured at the number 3 short cheek, between the number 2 rod bearing and the number 2 main bearing. The engine contained numerous fragments from the number 2 main bearing. The number 2 bearing saddle was severely worn and deformed. Other bearing saddles exhibited scoring. A metallurgical examination of the crankshaft revealed a fatigue failure at the aft radius of the number 2 main bearing journal adjacent to heavy rubbing marks from the number 2 main bearing.
Quoted verbatim from the NTSB record.
Other Cessna 207 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 25 Feb 1995 | Cessna 207A | Kotzebue, Alaska, United States | Yute Air Alaska | Fatal | 1 |
| 4 Jan 1995 | Cessna 207 | Akiak, Alaska, United States | Arctic Circle Air Service | No injuries | - |
| 10 Mar 1995 | Cessna 207A | Ketchikan, Alaska, United States | - | Serious injuries | - |
| 20 Mar 1995 | Cessna 207A | Bethel, Alaska, United States | - | No injuries | - |
| 26 Apr 1995 | Cessna 207 | Old Harbor, Alaska, United States | - | Serious injuries | - |
| 23 Jul 1995 | Cessna 207 | Shishmaref, Alaska, United States | Bering Air | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 15 Apr 1995 | Cessna 180B | Cantwell, Alaska, United States | - | Fatal | 2 |
| 21 May 1995 | Cessna 150 | Wasilla, Alaska, United States | Alaska Air Academy | Fatal | 1 |
| 3 Jun 1995 | Piper J3C-65 | Palmer, Alaska, United States | - | Serious injuries | - |
| 8 May 1995 | Piper PA-18 | Chugiak, Alaska, United States | Peter J. Kust | Fatal | 2 |
| 21 Jun 1995 | De Havilland DHC-2 | Nondalton, Alaska, United States | - | Fatal | 5 |
| 25 Jun 1995 | Piper PA-31 | Valdez, Alaska, United States | - | Fatal | 4 |