ASN Wikibase Occurrence # 41355
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| Date: | Monday 11 August 1997 |
| Time: | 17:00 LT |
| Type: |  Cessna U206G |
| Owner/operator: | Alain M. Reiser |
| Registration: | N756AD |
| MSN: | U2063928 |
| Year of manufacture: | 1977 |
| Total airframe hrs: | 4490 hours |
| Engine model: | Continental IO-520F62B |
| Fatalities: | Fatalities: 3 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Lesuire Lake, 4 miles S of Halibut Cove, Alaska -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Leisure Lake, AK |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The float-equipped airplane departed from water into gusting winds downwind of high, steep terrain. Witnesses said the airplane did not climb above 200 feet agl, which was insufficient to clear terrain at the upwind end of the lake. The airplane entered a steep left bank and turned within the confines of the upwind end of the lake. This turn was in a downwind direction, directly downwind of a 2,600-foot high peak. The airplane abruptly pitched nose down, impacted the water in a vertical attitude, and immediately sank. Postaccident inspection disclosed the flaps were extended to 25 degrees. The propeller separated from its mounting studs, leaving metal deposited in the majority of threads. No evidence of preimpact mechanical anomalies was discovered with the airplane. An air taxi pilot who arrived at the lake immediately after the accident reported gusts and turbulence too strong to attempt to land. He reported winds at the lake as 30 knots, stronger above, with gusts visible on the water.
Probable Cause: The pilot's improper evaluation of the weather conditions which led the pilot to maneuver within the confines of the lake to avoid surrounding terrain and a subsequent inadvertent stall. Factors were the terrain-induced turbulence and gusts.
Accident investigation:
 |
|
Sources:
NTSB ANC97FA121
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=756AD
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Dec-2016 18:11 | Dr. John Smith | Updated [Time, Cn, Operator, Location, Departure airport, Destination airport, Source, Narrative] |
| 08-Apr-2024 13:33 | ASN Update Bot | Updated [Time, Cn, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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