ASN Wikibase Occurrence # 237650
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Date: | Friday 3 July 2020 |
Time: | 09:00 LT |
Type: | Sopwith 1½ Strutter |
Owner/operator: | Private |
Registration: | N5539 |
MSN: | 5539 |
Year of manufacture: | 2019 |
Total airframe hrs: | 19 hours |
Engine model: | CAMS Gnome |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | near Van Alstyne, TX -
United States of America
|
Phase: | Landing |
Nature: | Test |
Departure airport: | Van Alstyne, TX |
Destination airport: | Van Alstyne, TX |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:During a test flight the pilot moved the control stick fully to the right to roll out of a turn, but the airplane did not respond, and the pilot suspected a failure in the aileron controls. The airplane eventually rolled wings level and the pilot elected to perform an emergency landing to a corn field, during which the airplane hit a tree and descended into the field. The wings and fuselage were substantially damaged during impact.
The pilot, who was also the builder of the airplane, examined the wreckage and determined that a rocking tube that connected the front cockpit control stick to the rear control stick had moved rearward about 1 inch. The aileron cables connected to a horn affixed to this tube. The rearward movement of the rocking tube was sufficient for the front part of the tube to come loose from its socket, which likely affected the control authority of the ailerons and resulted in the pilot's inability to control the airplane. The pilot explained that there was nothing in the original design that prevented the rocking tube from sliding aft.
Probable Cause: An inflight loss of aileron control due to movement of a control connector.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CEN20LA259 |
Status: | Investigation completed |
Duration: | 1 year and 10 months |
Download report: | Final report |
|
Sources:
NTSB CEN20LA259
FAA register:
https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=5539 Location
Revision history:
Date/time | Contributor | Updates |
03-Jul-2020 19:40 |
Captain Adam |
Added |
03-Jul-2020 21:23 |
RobertMB |
Updated [Time, Source] |
25-Sep-2020 06:00 |
KipAero |
Updated [Source, Damage, Narrative] |
01-Jul-2022 09:07 |
ASN Update Bot |
Updated [Time, Cn, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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