Aviation safety investigations & reports

Glasflugel Standard Libelle, VH-GGV, Schleicher ASW15A, VH-GXY, Tungamar (13 km SSW of Yarrawonga) VIC, 20 January 1989

Investigation number:
198901530
Status: Completed
Investigation completed

Summary

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The pilots were competing in a triangular navigation exercise and were in the vicinity of the final turning point. The aircraft were orbiting in a thermal when they collided at a height of about 3500 feet above the ground. Both aircraft became uncontrollable and the pilots parachuted to safety. The investigation established that both aircraft were orbitting to the right when they collided. Examination of the wreckage showed that the right wing of VH-GXY hit the left wing of VH-GGV. The impact was on the leading edge of each wing. About two metres of the wing of VH-GXY was severed, and about one metre of the wing of VH-GGV. Neither pilot had been aware of the presence of the other aircraft in the thermal.

Download Final Report
[Download  PDF: 23KB]
 
 
 
General details
Date: 20 January 1989   Investigation status: Completed  
Time: 1600    
Location: Tungamar (13 km SSW of Yarrawonga)    
State: Victoria   Occurrence type: Airborne collision  
Release date: 27 June 1989   Occurrence category: Accident  
Report status: Final   Highest injury level: Serious  

Aircraft 1 details

Aircraft 1 details
Aircraft manufacturer Glasflugel  
Aircraft model 201  
Aircraft registration VH-GGV  
Serial number 574  
Type of operation Gliding  
Damage to aircraft Destroyed  
Departure point Corowa NSW  
Departure time N/K  
Destination Corowa NSW  

Aircraft 2 details

Aircraft 2 details
Aircraft manufacturer Alexander Schleicher Segelflugzeugbau  
Aircraft model ASW-15  
Aircraft registration VH-GXY  
Serial number 15030  
Type of operation Gliding  
Damage to aircraft Destroyed  
Departure point Corowa NSW