ASN Wikibase Occurrence # 297682
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| Date: | Wednesday 9 January 2002 |
| Time: | 11:10 LT |
| Type: |  Cessna 210L |
| Owner/operator: | Sletton Construction Co. |
| Registration: | N1713X |
| MSN: | 21060735 |
| Total airframe hrs: | 4487 hours |
| Engine model: | Continental IO-520-L8B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Great Falls, Montana -
 United States of America
|
| Phase: | Unknown |
| Nature: | Executive |
| Departure airport: | Great Falls International Airport, MT (GTF/KGTF) |
| Cheyenne Airport, WY (CYS/KCYS) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While attempting to fly through an area of mountainous/hilly terrain, the pilot encountered lowering ceilings and snow, and as he continued, got off of his planned course. Although he was initially able to remain below the clouds, he eventually entered an area where his attempts to maintain clearance from the terrain resulted in the aircraft entering the bottom portion of the cloud layer. Because he was having difficulty keeping visual contact with the terrain, he initiated a course-reversal turn. During the turn, the aircraft clipped a tree top, and then impacted a number of other trees. Prior to his departure, the pilot received two weather briefings. The briefing he received earlier in the day indicated his planned route would be VFR at the time of his departure. The briefing he received about 90 minutes prior to departure indicated that the route would be mostly VFR, but that there was an update that showed areas of possible mountain obscuration.
Probable Cause: The pilot's intentional continuation of a visual flight rules (VFR) flight into instrument meteorological conditions (IMC), and his failure to maintain clearance from the terrain. Factors include low ceilings, snow, mountainous/hilly terrain, and trees.
Accident investigation:
 |
|
Sources:
NTSB SEA02LA025
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Oct-2022 07:14 | ASN Update Bot | Added |
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