ASN Wikibase Occurrence # 121028
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| Date: | Tuesday 8 March 2011 |
| Time: | 16:28 |
| Type: |  Douglas A-1D (AD-4NA) Skyraider |
| Owner/operator: | Private |
| Registration: | N2088G |
| MSN: | 126935 |
| Total airframe hrs: | 564 hours |
| Engine model: | Wright R3350 SERIES |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Sawtooth mountains (Idaho) -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Wendover, UT (ENV) |
| Idaho Falls, ID (IDA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The non-instrument-rated pilot was on a cross-country flight when the airplane impacted terrain. According to limited radar data, after departure the flight proceeded northwest and climbed to 6,500 feet mean sea level (msl). Only segments of the flight were visible due to the low altitude range of the radar. The flight track continued northeast to its last target at an altitude of 7,900 feet msl and about 0.25 mile from the accident site. Terrain elevation at the accident site was about 6,600 feet msl.
A postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation. Ground scar analysis, impact signatures, and wreckage fragmentation patterns indicated that the airplane impacted terrain in a steep, nose-down attitude with high forward velocity.
Analysis of available weather information indicated that conditions likely produced restricted visibility in the area at the time of the accident. The restricted visibility conditions would have been conducive to the development of spatial disorientation.
Probable Cause: The non-instrument-rated pilot’s encounter with localized instrument meteorological conditions, which resulted in spatial disorientation and a loss of airplane control.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Mar-2011 08:36 | transylvhwp | Added |
| 10-Mar-2011 09:30 | bizjets101 | Updated [Aircraft type, Registration, Cn, Operator, Phase, Nature, Departure airport, Destination airport, Source, Damage, Narrative, Plane category, ] |
| 10-Mar-2011 15:10 | RobertMB | Updated [Aircraft type, Cn, Narrative] |
| 03-Apr-2011 06:37 | ThW | Updated [Source, Narrative] |
| 31-Mar-2013 17:52 | Uli Elch | Updated [Aircraft type, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 16:45 | ASN Update Bot | Updated [Cn, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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