In October 2026, the Civil Aviation Safety Authority (CASA) updated Advisory Circular AC 139.E-05, Obstacles (including wind farms) outside the vicinity of a CASA certified aerodrome.
The updated guidance provides information on assessing wind farm developments and other tall structures to help ensure appropriate measures are taken to protect aviation safety.
Wind turbines and other tall structures can present aviation safety considerations even when located outside the immediate vicinity of an airport. Developers and planning authorities need to consider potential impacts on aircraft operations, including low-level flying activities, and determine whether appropriate risk mitigation measures are required.
Aviation Projects supports renewable energy developers, planning authorities and infrastructure proponents through specialist aviation advice, including Aviation Impact Assessments, Obstacle Lighting Assessments and airspace safeguarding advice.
Our team helps clients identify aviation-related risks and navigate relevant regulatory considerations throughout the planning and development process.
Planning a wind farm or tall infrastructure development? Contact Aviation Projects to discuss how our aviation specialists can support your project from the earliest planning stages.
Tags: CASA, Wind Farms, Renewable Energy, Aviation Safeguarding, Aviation Projects
