Accident Socata TB20 Trinidad VH-HBB, 09 Nov 2012
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ASN Wikibase Occurrence # 150589
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Type:Silhouette image of generic TB20 model; specific model in this crash may look slightly different    
Socata TB20 Trinidad
Registration: VH-HBB
MSN: 1730
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:Near the Bruxner Highway, South Gundurimbra, near Lismore, NSW -   Australia
Phase: Approach
Departure airport:Coolangatta, Gold Coast, Queensland (YBCG)
Destination airport:Lismore Airport, NSW (YLIS)
Investigating agency: ATSB
Confidence Rating: Accident investigation report completed and information captured
On 9 November 2012, a student and instructor departed Gold Coast Airport, Queensland for a training flight in a SOCATA TB 20, registered VH-HBB, to Lismore Airport, New South Wales. This included circuit training as part of the student’s conversion to the aircraft type. On their fifth circuit, and while making a left turn from downwind to base, the aircraft aerodynamically stalled and the left wing dropped steeply. A recovery was commenced, but the aircraft collided with terrain in a paddock to the east of the Bruxner Highway, about 3 km south of Lismore Airport. Both occupants received fatal injuries and the aircraft was destroyed by the impact and an intense fuel-fed, post-impact fire.

The ATSB found that while making a left turn in the circuit, an aerodynamic stall occurred, resulting in a significant left-wing low and nose-down attitude in close proximity to the terrain. The instructor was unable to prevent the stall from occurring due to either insufficient warning or available time to react. Although it appeared that a stall recovery was commenced, the aircraft stalled at an altitude from which they were unable to fully recover to controlled flight before the aircraft collided with the terrain.

The ATSB also found that the aircraft’s engine contained crankcase through bolts from a different engine manufacturer that were installed in the engine prior to the aircraft’s importation into Australia and were probably unapproved for use in that engine. Although these bolts did not contribute to the accident, their installation meant that the continued safe operation of the engine could not be assured.



Accident investigation:
Investigating agency: ATSB
Status: Investigation completed
Download report: Final report

Revision history:

09-Nov-2012 01:16 gerard57 Added
09-Nov-2012 02:16 Petro Updated [Aircraft type, Registration, Departure airport, Destination airport]
09-Nov-2012 06:57 RobertMB Updated [Aircraft type, Cn]
11-Nov-2012 03:13 Anon. Updated [Phase, Narrative]
03-May-2014 18:54 Dr. John Smith Updated [Location, Departure airport, Destination airport, Source, Narrative]

Corrections or additions? ... Edit this accident description

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