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ASN Wikibase Occurrence # 157853
Last updated: 2 December 2021
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Date:29-JUL-2013
Time:13:20
Type:Silhouette image of generic GNAT model; specific model in this crash may look slightly different
Folland Gnat T1
Owner/operator:Foogair Inc
Registration: N18GT
MSN: XS105
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:about 100 yards off Highway 17, S of Georgetown Airport, South Carolin -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Private
Departure airport:Charleston, WV (CRW)
Destination airport:Georgetown, SC (GGE)
Investigating agency: NTSB
Narrative:
Witnesses at the airport reported that the pilot radioed them while on approach to let them know he was coming in to land, and they went outside to view the landing. The airplane crossed over the midfield of the airport and entered a right downwind. The airplane then made a high-speed flyby over the runway between 100 and 200 ft above ground level. At the end of the runway, the airplane pitched up about 30 degrees and began rolling left. According to the witnesses, the first 180 degrees of the aileron roll was “perfect,” but, when the airplane reached about the 190-degree point, it abruptly pitched down to the right and collided with the ground. A postcrash fire ensued.
Postcrash fire damage precluded a determination of whether a hydraulic system failure led to the loss of the tailplane/elevator pitch control. However, examination of the two switches on the control stick that operate the electric standby tailplane trim system, which can be used in the event of a hydraulic failure, revealed that the nose-down side of the right switch was inoperative. If a hydraulic failure occurred and this switch was inoperative, the pilot would not have had full tailplane authority during his aerobatic flight maneuver. Although the airplane was equipped with an additional, independent switch that would have allowed control of the tailplane/elevator in the event that this switch failed, the functionality of this switch could not be determined due to damage. Regardless of whether a mechanical problem initiated the pitch anomaly, the low altitude at which the pilot performed the flight maneuver allowed insufficient time for him to regain airplane control before the airplane impacted the ground.

Probable Cause: The loss of airplane control for reasons that could not be determined due to postcrash fire damage. Contributing to the accident was the pilot’s decision to perform an aerobatic maneuver at low altitude, which did not allow sufficient time for him to regain airplane control.


Sources:

NTSB
3. https://flightaware.com/live/flight/N18GT

FAA register: 5. http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=18GT

Accident investigation:
cover
  
Investigating agency: NTSB
Status: Investigation completed
Duration:
Download report: Final report
Location


Revision history:

Date/timeContributorUpdates
29-Jul-2013 15:09 gerard57 Added
29-Jul-2013 19:47 harro Updated [Aircraft type]
29-Jul-2013 19:49 harro Updated [Registration, Operator, Source]
29-Jul-2013 19:52 harro Updated [Cn, Location, Departure airport, Destination airport, Narrative]
08-Aug-2013 01:40 Geno Updated [Time, Phase, Source, Narrative]
02-Aug-2015 21:19 Dr. John Smith Updated [Time, Location, Source, Embed code, Narrative]
02-Aug-2015 21:19 Dr. John Smith Updated [Narrative]
02-Aug-2015 21:22 Dr. John Smith Updated [Embed code]
02-Aug-2015 21:28 Dr. John Smith Updated [Location]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
29-Nov-2017 08:50 ASN Update Bot Updated [Cn, Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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