ASN Wikibase Occurrence # 145700
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Date: | Thursday 17 May 2012 |
Time: | 16:02 |
Type: | Glasair III |
Owner/operator: | Private |
Registration: | N471B |
MSN: | 3380 |
Total airframe hrs: | 150 hours |
Engine model: | Lycoming I-540 |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Mile marker 1.2, West Fork Road, south of Darby, MT -
United States of America
|
Phase: | Landing |
Nature: | Ferry/positioning |
Departure airport: | Troutdale, OR (TTD) |
Destination airport: | Billings, MT (BIL) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot reported that, about 2 hours into a visual flight rules cross-country flight, he enriched the mixture due to indications of excessive cylinder head and exhaust gas temperatures. This resulted in a higher fuel burn than planned, so he changed the flight’s destination to a closer airport. While en route to his amended destination, he encountered instrument meteorological conditions. A subsequent buildup of ice resulted in a loss of 100 knots of airspeed as the airplane entered a controlled descent. The pilot executed a 180-degree turn and broke out of the clouds over a valley. During the next 50 minutes, he made several attempts to exit the valley; however, mountain peak obscuration and a thunderstorm prevented him from flying out of the valley. Now very close to fuel exhaustion, he elected to land on a two-lane highway. During the landing roll, the airplane veered off the side of the road, impacted a tree, slid backwards through a ditch, and collided with a concrete drainage culvert. The airplane sustained damage to the outboard sections of both wings.
Probable Cause: The pilot’s loss of directional control during an emergency landing on a paved highway.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | WPR12CA213 |
Status: | Investigation completed |
Duration: | 3 months |
Download report: | Final report |
|
Sources:
NTSB
History of this aircraft
Other occurrences involving this aircraft Location
Revision history:
Date/time | Contributor | Updates |
18-May-2012 10:47 |
Geno |
Added |
21-Dec-2016 19:28 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
19-Aug-2017 16:04 |
ASN Update Bot |
Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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