Aviation safety investigations & reports

Precautionary landing involving Cessna 150, VH-TDZ, and Cessna 152, VH-KTL, 22 km WSW of Exmouth (ALA), Western Australia, 3 July 2016

Investigation number:
Status: Completed
Investigation completed

Final Report

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On the morning of 3 July 2016, a Cessna 150M aircraft, registered VH-TDZ, and a Cessna 152 aircraft, registered VH-KTL, departed from the Exmouth aircraft landing area (ALA), Western Australia, to conduct whale shark spotting on the western side of the Exmouth peninsula.

At about 1145, the cloud base lowered and visibility reduced on the western side of the peninsula, and the pilots collectively agreed to return to Exmouth. However, the pilots were unable to navigate back to the Exmouth ALA in visual meteorological conditions and both conducted precautionary landings on a road on the west coast of the peninsula. The aircraft did not sustain any damage and the pilots were not injured.

As a result of this incident, both aircraft operators have amended their operations manuals to highlight the need for their pilots to make early decisions to return to the Exmouth ALA when weather conditions are deteriorating and to maintain an alternate plan.

This incident highlights the need for pilots to interpret the weather forecast within the context of their planned operation. There are several key factors for a VFR pilot to consider to avoid inadvertently entering IMC, which include:

  • thorough pre-flight planning
  • having alternate plans in the event of deteriorating weather
  • making timely decisions to turn back or divert.


Aviation Short Investigations Bulletin- Issue 52

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General details
Date: 03 July 2016   Investigation status: Completed  
Time: 13:00 WST   Investigation level: Short - click for an explanation of investigation levels  
Location   (show map): 22 km WSW of Exmouth (ALA) (Yardie Creek Rd, Cape Range National Park)    
State: Western Australia   Occurrence type: Unforecast weather  
Release date: 28 September 2016   Occurrence category: Incident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Cessna Aircraft Company  
Aircraft model 150M  
Aircraft registration VH-TDZ  
Serial number 15075794  
Type of operation Aerial Work  
Sector Piston  
Damage to aircraft Nil  
Departure point Exmouth, WA  
Destination Exmouth WA  
Last update 14 November 2018