ERSA (En Route Supplement Australia)

The En Route Supplement Australia (ERSA) is a mandatory publication published by Airservices Australia. It is an essential component of the Aeronautical Information Publication (AIP) suite and contains vital information required for flight planning and en-route operations within Australian airspace.

Inside the ERSA, pilots find detailed aerodrome directories including runway lengths, surface types, lighting configurations, and local traffic regulations. It also lists communication frequencies, navigation aid statuses, and specific procedures for operating at non-towered or controlled aerodromes.

Navigating and interpreting the ERSA is a core competency tested heavily in CASA RPL, PPL, and CPL exams. Candidates must be able to rapidly extract data regarding Emergency procedures, standard holding patterns, and aerodrome specific noise abatement procedures.