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ASN Wikibase Occurrence # 70328
Last updated: 1 February 2020
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Date:07-DEC-2009
Time:11:34
Type:Silhouette image of generic P46T model; specific model in this crash may look slightly different
Piper PA-46-500TP Malibu Meridian
Owner/operator:Private
Registration: N600YE
C/n / msn: 4697250
Fatalities:Fatalities: 2 / Occupants: 2
Aircraft damage: Substantial
Category:Accident
Location:nr Lockhart, Caldwell County, TX -   United States of America
Phase: En route
Nature:Private
Departure airport:Rockport, TX (RKP)
Destination airport:Austin, TX (AUS)
Investigating agency: NTSB
Narrative:
***This report was modified on May 22, 2014. Please see the docket for this accident to view the original report.***

The pilot was established on the localizer portion of the instrument landing system approach outside the final approach fix in visual meteorological conditions above clouds. He was then given vectors away from the localizer course by an air traffic controller. The vectors were close together and included a left 90-degree turn, a descent, and a 180-degree right turn back toward the localizer course. During the right turn and descent, the airplane continued turning with increasing bank and subsequently impacted the ground. According to a pilot weather report and flight path data the pilot entered clouds as he was starting the right turn toward the localizer. The combination of descending turns while entering instrument conditions were conducive to spatial disorientation. Further, the heading changes issued by the air traffic controller were rapid, of large magnitude, and, in combination with a descent clearance, likely contributed to the pilot's disorientation.Diphenhydramine, a drug that may impair mental and/or physical abilities, was found in the pilot's toxicological test results. While the exact effect of the drug at the time of the accident could not be determined, it may have contributed to the development of spatial disorientation.
Probable Cause: ***This report was modified on May 22, 2014. Please see the docket for this accident to view the original report.***

The pilot's spatial disorientation, which resulted in his loss of airplane control. Contributing to the pilot's spatial disorientation was the sequence and timing of the instructions issued by the air traffic controller. The pilot's operation of the airplane after using impairing medication may also have contributed.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20091207X51809&key=1
http://spectrumlocalnews.com/tx/austin?ArID=260579
https://www.statesman.com/news/mediahub/media/slideshow/index.jsp?tId=204999
https://www.kvue.com/article/news/local/Plane-crashes-in-Caldwell-County-78698252.html_
https://flightaware.com/live/flight/N600YE


Revision history:

Date/timeContributorUpdates
07-Dec-2009 11:16 harro Added
07-Dec-2009 11:23 harro Updated
07-Dec-2009 14:37 RobertMB Updated
08-Dec-2009 00:20 TB Updated
08-Dec-2009 06:29 RobertMB Updated
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
02-Dec-2017 17:59 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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