Cessna TU206A accident near Juneau, Alaska, October 1, 2006
On October 1, 2006, a Cessna TU206A, registered N206AK, was substantially damaged in an accident near Juneau, Alaska. It was a positioning flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The separation of the number 6 cylinder assembly from the engine during cruise flight, which resulted in a hard forced landing in rough ocean swells. A factor contributing to the accident was the rough ocean swells.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- October 1, 2006
- Place
- Juneau, Alaska · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna TU206A · all TU206As on the register
- Registration
- N206AK · no longer on the register · serial U2060521
- Damage
- Substantial damage
- Flight
- Positioning flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The commercial certificated pilot was on a cross-country positioning flight under Title 14, CFR Part 91, in a float-equipped airplane, when the number 6 engine cylinder separated from the engine through the engine cowling. The pilot made a hard emergency landing in steep ocean swells, and was able to beach the airplane. The airplane received structural damage to the wings and fuselage during the landing. An examination of the eight studs holding the number 6 cylinder to the engine case, revealed they were either broken or their threads were stripped. An examination of maintenance logbooks did not reveal any unresolved preaccident mechanical anomalies.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot, flight instructor
- Ratings: multi-engine land; multi-engine sea; single-engine land; single-engine sea; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
- Flight time: 4,165 hours in all; 1,000 in this make and model; 30 in the last 90 days; 15 in the last 30 days; 1,000 on instruments
- Last flight review: August 1, 2006
- Medical certificate: Class 2 (without waivers/limitations)
- Seat: left
- Injury: no injuries
The aircraft
- Airframe total time: 2,950.7 hours
- Last inspection: annual inspection, September 1, 2006
- Maximum gross weight: 3,600 lb
- Seats: 6
- Landing gear: fixed
- Engine: Continental TSIO 520C (piston); 0 hours total
The flight
- Departed from: CKU Cordova Seaplan AK at 1:00 pm
- Destination: 5Z1 Juneau AK
- Flight plan: VFR
Weather at the time
- Light: daylight
- Wind: from 240° at 15 knots, gusting 25
- Visibility: 10 statute miles
- Sky: overcast at 2,000 ft; clear
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.