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On 10 November 2013, the flight instructor and student pilot of a Cessna 152 aircraft, registered VH‑TNV (TNV), were conducting circuits at Tyabb aerodrome, Victoria. The pilot of a Jabiru J160 aircraft, registered 19-4430 (Jabiru), taxied for a local flight with one passenger on board. The pilot broadcast a taxi call on the CTAF and taxied towards the runway 17 holding point. The pilot stopped the aircraft short of the holding point and turned at an angle to maximise his view of the base and final legs of the circuit.

When on a close downwind leg, in-line with the runway 17 threshold, the pilot of TNV commenced a glide approach. He broadcast turning base for a glide approach, and commenced a continuous turn towards runway 17.

The pilot of the Jabiru heard the broadcast and looked for TNV but was unable to sight the aircraft. He then broadcast that he was lining up and rolling on runway 17, and commenced the take-off run. TNV was on a high close final, and the pilot reported broadcasting turning final. Neither pilot heard the other pilot’s broadcast.

The student pilot of TNV continued the glide approach, aiming to touch down about half way along the runway. As the Jabiru became airborne, at about 15 ft above ground level, the pilot saw the underside of TNV appear from above and was overtaking the Jabiru very slowly and descending. TNV descended onto the Jabiru and the elevator trim tab impacted the fin of the Jabiru. The Jabiru landed and skidded along the runway.

The pilot of TNV heard a loud bang but did not see the Jabiru and commenced a go-around. The aircraft required full back pressure on the control column and full back trim to climb, so he conducted a low level circuit and returned for landing. The Jabiru was substantially damaged and TNV sustained damage to the right elevator and trim tab.


Aviation Short Investigation Bulletin - Issue 25

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General details
Date: 10 November 2013 Investigation status: Completed 
Time: 1130 EDT  
Location   (show map):Tyabb aerodrome Investigation type: Occurrence Investigation 
State: Victoria Occurrence type: Airborne collision 
Release date: 20 January 2014 Occurrence class: Airspace 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft 1 details
Aircraft manufacturer: Jabiru Aircraft Pty Ltd 
Aircraft model: J160 
Aircraft registration: 19-4430 
Type of operation: Private 
Sector: Piston 
Damage to aircraft: Substantial 
Departure point:Tyabb, Vic.
Destination:Tyabb, Vic.
Aircraft 2 details
Aircraft manufacturer: Cessna Aircraft Company 
Aircraft model: 152 
Aircraft registration: VH-TNV 
Serial number: 15281560 
Type of operation: Flying Training 
Sector: Piston 
Damage to aircraft: Minor 
Departure point:Tyabb, Vic.
Destination:Tyabb, Vic.
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Last update 06 June 2014