Aviation safety investigations & reports

Near collision involving a de Havilland DHC-2, VH-AWD and a Gippsland Aeronautics GA-8, VH-NOQ, 16 km NNE of Hamilton Island Airport, Queensland on 31 October 2014

Investigation number:
AO-2014-175
Status: Completed
Investigation completed

Summary

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On 31 October 2014, the pilot of a de Havilland DHC-2 aircraft, registered VH-AWD (AWD), conducted a scenic charter flight from Hayman Island Water Landing Area, Queensland. The pilot of AWD broadcast on the common traffic advisory frequency (CTAF) when passing Pinnacle Point. The broadcast from AWD was heard by the pilot of a Gippsland Aeronautics GA-8 aircraft, registered VH-NOQ (NOQ), which had departed from Shute Harbour Airport for a scenic charter flight. Although he heard the broadcast, the pilot of NOQ did not know where Pinnacle Point was as it was not labelled on the visual terminal chart (VTC).

The pilot of NOQ broadcast on the CTAF after passing Tongue Point and heading south along Whitehaven Beach. The pilot of AWD heard a broadcast on the CTAF, possibly that of the pilot of NOQ at Tongue Point, but did not hear the contents of the broadcast. As he missed the broadcast, the pilot of AWD then broadcast his position and intentions, and did not receive a response.

NOQ tracked to the southern end of Whitehaven Beach, turned and headed north returning to Tongue Point. When just south of Tongue Point for the second time, the pilot of NOQ broadcast on the CTAF and advised that he was changing to Hamilton Island air traffic control (ATC) Tower frequency. The pilot then commenced a left turn, selected the Tower frequency and was no longer monitoring the CTAF.

At about 1354 Australian Eastern Standard Time, and 1,300 feet, when approaching Tongue Point from Dumbell Island, the pilot of AWD sighted NOQ on a reciprocal track and estimated the aircraft passed on his right about 50 m away and about 50 feet above AWD.

This incident highlights the importance of broadcasting radio calls on, and monitoring, the appropriate frequency, to alert pilots and assist in see-and-avoid practices. It serves as a reminder to keep a good lookout for other aircraft, particularly around high traffic areas and radio frequency zone boundaries.

 

Aviation Short Investigations Bulletin - Issue 38

Download Final Report
[Download  PDF: 254KB]
 
 
Alternate: [Download  DOCX: 1.7MB]
 
General details
Date: 31 October 2014   Investigation status: Completed  
Time: 1354 EST   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): 16 km NNE of Hamilton Island Airport    
State: Queensland   Occurrence type: Near collision  
Release date: 27 January 2015   Occurrence category: Serious Incident  
Report status: Final   Highest injury level: None  

Aircraft 1 details

Aircraft 1 details
Aircraft manufacturer de Havilland Canada  
Aircraft model DHC-2  
Aircraft registration VH-AWD  
Serial number 1066  
Type of operation Charter  
Sector Piston  
Damage to aircraft Nil  
Departure point Hayman Island, Qld  
Destination Whitehaven Beach, Qld  

Aircraft 2 details

Aircraft 2 details
Aircraft manufacturer Gippsland Aeronautics Pty Ltd  
Aircraft model GA-8  
Aircraft registration VH-NOQ  
Serial number GA8-07-127  
Type of operation Charter  
Sector Piston  
Damage to aircraft Nil  
Departure point Shute Harbour, Qld  
Destination Hamilton Island, Qld  
Last update 14 November 2018