The En Route Supplement Australia (ERSA) is a vital aeronautical publication produced by Airservices Australia. 

It serves as the primary reference for pilots and flight planners for both pre-flight preparation and in-flight operations within Australian airspace.

 

Core Components

The ERSA is not just one document but a suite of categorized information:

• Aerodrome & Facilities Directory (FAC): The "heart" of the product. It provides alphabetical listings of all licensed (and some unlicensed) aerodromes and helicopter landing sites. Each entry includes:
  • Pictorial aerodrome layouts (runway configurations, taxiways, and aprons).
  • Physical characteristics (surface type, elevation, coordinates).
  • Hours of operation for services (Tower, Fuel, Ground Handling).
  • Lighting and Visual Ground Aids.
  • Communication frequencies (CTAF, AWIS, FIA).
    
    
• Runway Distance Supplement (RDS): Optional extra with the ERSA, this provides critical take-off and landing distance data required for performance calculations.
  
  
• General Information (GEN): Contains conversion tables, time zones, emergency procedures, and contact details for aviation authorities.
  
  
• Special Procedures: Information on noise abatement, bird hazards, and specific local traffic regulations.

 

Technical Specifications

Amendment Cycle	Updated every 12 weeks (AIRAC cycle).
Primary Formats	Spiral Bound & Loose Leaf (for binders)
Effective Date	The current version is effective as of November 2025, with the next amedment current as of March 19, 2026.