ASN Wikibase Occurrence # 74027
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Date: | Wednesday 21 April 2010 |
Time: | 09:36 |
Type: | Airborne Edge XT-912-L |
Owner/operator: | Tedd's Flying Adventures |
Registration: | N34TH |
MSN: | XT-912-0335 |
Total airframe hrs: | 100 hours |
Engine model: | Rotax 912 UL |
Fatalities: | Fatalities: 2 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Kealakekua Bay, Hawaii -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Training |
Departure airport: | Kailua Kona, HI (KOA) |
Destination airport: | Kailua Kona, HI (KOA) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The flight was an introductory flight lesson in a weight-shift-controlled aircraft. Witnesses reported that they observed the aircraft maneuver over the ocean and approach a 450-foot cliff at a 45-degree angle. As the aircraft came close to the cliff, it banked steeply away and rolled inverted. Witnesses reported hearing a loud “pop” and the wings folded around the fuselage (pod). The aircraft descended in a spiraling corkscrew-like manner before impacting the water. The aircraft immediately sank and was never recovered. The pilot likely exceeded the manufacturer’s operating limitations for the aircraft, which specifies a maximum pitch limit of 45 degrees and a maximum bank angle of 60 degrees. Positive flight load factors are limited to 4G and negative loads are prohibited; flight loads between positive 1G and 0G should be avoided. The pilot’s operating handbook cautioned that negative G maneuvers can never be conducted safely and stated that these maneuvers put the aircraft outside of the pilot’s control.
Probable Cause: The pilot’s intentional in-flight maneuvers that exceeded the structural limits of the aircraft, which resulted in structural failure of the wings.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | WPR10FA211 |
Status: | Investigation completed |
Duration: | 1 year and 7 months |
Download report: | Final report |
|
Sources:
NTSB
Location
Revision history:
Date/time | Contributor | Updates |
21-Apr-2010 21:00 |
Geno |
Added |
22-Apr-2010 01:55 |
slowkid |
Updated [Aircraft type, Operator, Source] |
22-Apr-2010 02:13 |
RobertMB |
Updated [Time, Aircraft type, Operator, Nature, Departure airport, Destination airport, Source] |
21-Dec-2016 19:25 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
26-Nov-2017 16:34 |
ASN Update Bot |
Updated [Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Plane category] |
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