ASN Wikibase Occurrence # 162060
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| Date: | Monday 11 November 2013 |
| Time: | 00:56 |
| Type: |  Beechcraft B36TC Bonanza |
| Owner/operator: | Private |
| Registration: | N4245D |
| MSN: | EA-645 |
| Year of manufacture: | 1999 |
| Total airframe hrs: | 1439 hours |
| Engine model: | Continental IO-550-B |
| Fatalities: | Fatalities: 3 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Near Rick Husband Amarillo Int'l Airport - KAMA, Amarillo, TX -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Lubbock, TX (LBB) |
| Amarillo, TX (AMA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The noninstrument-rated private pilot filed an instrument flight plan to an airport that was reporting night instrument meteorological conditions (IMC), which included ¼-mile visibility, fog, sky obscuration, and 100-foot vertical visibility. Radar track data showed that, upon arrival at the airport, the pilot flew the instrument lighting system approach and then attempted to execute a missed approach. During the missed approach, radar contact was lost and the airplane impacted the terrain. The postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.
The pilot’s toxicology report indicated that gabapentin and duloxetine were found in the pilot’s system, and both are disqualifying drugs for flight. The pilot did not report either of these disqualifying medications on his last medical certification examination. While both medications are sedating, a witness reported that the pilot was alert and energetic before the flight and showed no signs of sedation. Witness reports and findings from the wreckage examination are consistent with a loss of control event, and, based on the degraded visual reference conditions present about the time of the accident, it is likely that the pilot experienced spatial disorientation. Although it could not be determined what effect the use of the medications had on the pilot’s performance during the high-workload IMC flight, their use could increase the chance of experiencing and responding inappropriately to spatial disorientation.
Probable Cause: The noninstrument-rated pilot’s improper decision to fly a night instrument approach in instrument meteorological conditions, which resulted in the pilot’s spatial disorientation and loss of control of the airplane during an attempted missed approach.
Accident investigation:
 |
|
Sources:
NTSB
https://flightaware.com/live/flight/N4245D
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=4245D
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Nov-2013 17:29 | Geno | Added |
| 11-Nov-2013 17:36 | Geno | Updated [Source] |
| 11-Nov-2013 20:52 | Anon. | Updated [Date] |
| 12-Nov-2013 04:32 | Geno | Updated [Operator, Source] |
| 14-Nov-2013 16:29 | Alpine Flight | Updated [Aircraft type, Location, Departure airport, Destination airport, Narrative] |
| 20-Nov-2013 00:20 | Geno | Updated [Time, Nature, Source, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 09:24 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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