- Carriage of ADS-B avionics in foreign registered aircraft operating in Australian territory
In September 2011, CASA promulgated an amendment to CAO 20.18, mandating the carriage of serviceable ADS-B equipment in Australian-registered aircraft. The requirement stipulated that aircraft placed on the Australian Aircraft Register before 6 February 2014 must be equipped with ADS-B avionics by 2 February 2017 and aircraft first placed on the Australian Aircraft Register on/after 6 February 2014 must be equipped with ADS-B when registered.
The existing legislative instruments impose ADS-B mandates for flight at/above FL290 and prescribe standards for the equipment configuration used for ADS-B transmission. They are applicable to:
- all Australian aircraft (CAO 20.18)
- foreign registered aircraft when operating in Australian territory under an Air Operator's Certificate (CAOs 82.1, 82.3 and 82.5)
- foreign registered aircraft engaged in private operations in Australian territory (CASA legislative instrument 521/09).
CASA seeks to expand the requirement for ADS-B based electronic surveillance of aircraft to improve the safety and efficiency of ATM. This would be achieved by extending the requirement to include all IFR-capable aircraft that operate in Australia, allowing Airservices Australia to conduct greater levels of surveillance across Australia for en route IFR flight.
Globally, ADS-B is increasingly being used as the modern means of air-to-ground and air-to-air surveillance. Domestically, Airservices Australia is developing an extensive network of ADS-B ground stations to improve electronic surveillance capabilities. The infrastructure cost for each ADS-B ground station is about one-tenth of the cost to install a Mode S Secondary Surveillance Radar (SSR) ground station. Additionally, ADS-B is a superior technology in terms of accuracy and integrity, making it the preferred means of monitoring IFR aircraft in Australia. CASA’s case for change therefore combines improved safety requirements with optimum use of existing domestic/international surveillance infrastructure.
The number of foreign registered aircraft affected by the proposed mandate will be small in number (probably less than 100 aircraft). CASA expects that, at some point, these aircraft will most likely be subject to a similar ADS-B mandate in their own State of Registry. The primary impact for foreign registered aircraft would be related to meeting Australia's earlier compliance deadline rather than the imposition of a country-specific regulatory requirement.
How to respond
Comment period now closed.
Contact: Jan Goosen, Project Leader