ASN Wikibase Occurrence # 154762
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| Date: | Monday 1 April 2013 |
| Time: | 12:10 |
| Type: |  Mooney M20E Super 21 |
| Owner/operator: | Private |
| Registration: | N9330M |
| MSN: | 1262 |
| Year of manufacture: | 1973 |
| Total airframe hrs: | 2054 hours |
| Engine model: | Lycoming IO360 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | 4NM NW of Guyman, OK -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Guymon, CO (GUY) |
| Peyton, CO (FLY) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A witness reported that, after landing for an en-route fuel stop, the noninstrument-rated pilot checked the weather and then departed for a cross-country flight; instrument meteorological conditions prevailed at the time of departure. The burned wreckage was found 2 days later in a remote unpopulated area about 6 miles northwest of the departure airport. Examination of the accident site revealed ground scars and airplane damage consistent with a nearly vertical nose-down collision with terrain. Examination of the wreckage revealed no evidence of any preimpact mechanical malfunctions or failures, although the definitive operational status of the vacuum-driven instruments could not be determined. The weather information, which was corroborated by a witness, depicted deteriorating weather conditions with a lowering variable ceiling and the lack of a visible horizon in the area at the time of the accident. The low-visibility conditions were conducive to the noninstrument-rated pilot’s development of spatial disorientation, and the airplane's near-vertical descent is consistent with the pilot's loss of airplane control due to spatial disorientation.
Probable Cause: The noninstrument-rated pilot's encounter with instrument meteorological conditions, which resulted in spatial disorientation and his subsequent loss of airplane control. Contributing to the accident was the pilot's decision to take off in deteriorating weather conditions.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Apr-2013 11:16 | gerard57 | Added |
| 03-Apr-2013 17:16 | harro | Updated [Aircraft type, Cn] |
| 04-Apr-2013 00:26 | Anon. | Updated [Location, Departure airport, Destination airport, Source, Damage, Narrative] |
| 04-Apr-2013 06:17 | Geno | Updated [Time, Total fatalities, Total occupants, Other fatalities, Location, Departure airport, Destination airport, Source, Narrative] |
| 04-Apr-2013 06:20 | gerard57 | Updated [Total fatalities, Total occupants, Other fatalities] |
| 12-Oct-2013 11:07 | Alpine Flight | Updated [Time, Aircraft type, Location] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 28-Nov-2017 14:31 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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