ATI Brief on Australia's RNP Transition
Australia’s move away from ground based NAVAIDS has achieved a significant milestone. New requirements for foreign operators take effect 26 May 2016. In 2014 the Australian Civil Aviation Safety Authority (CASA) published a Civil Aviation Order 20.91 beginning the transition away from VORs. In 2016 CASA released two Aeronautical Information Circulars, AIC 10/16 and AIC 11/16, detailing the next critical phase of this process. AIC 10/16 identifies new Performance Based Navigation requirements and AIC 11/16 identifies the decommissioning of 179 VORs.
CASA’s goal is to achieve full implementation of RNP 1 and RNP 2 standards by 31 January 2018.
The stated intent is that these standards will require State of Registry authorization; an Ops Spec or LOA. The language of AIC 10/16 instructs operators who currently do not possess an authorization for RNP 1 and RNP 2 to have a State of Registry authorization for RNAV 1 and RNAV 2 systems based on GPS, and submit for a waiver utilizing CASA Form 0667. The waiver will allow operations with RNAV 1 and RNAV 2 Authorizations until 31 January 2018 when the RNP1 and RNP 2 Authorizations will be required.
The PBN requirement is further detailed in a separate CASA document providing “General Guidance”. The requirements as stated in AIC 10/16 will adversely effect and limit operations of many foreign operators and has resulted in IBAC responding directly to the CASA authorities requesting clarification. The “General Guidance” has consequently been revised 6 times and was rereleased as version 6 on May 16th 2016 with considerably less restrictive language.
ATI conducted a Webinar on worldwide regional PBN transitions and addressed the Australian transition as a part of the Webinar. Links to the CASA General Guidance and the Waiver form are provided to assist operators in reviewing the requirements.
Advisory Circular 90-105A was issued by the FAA on March 7th. It effectively places all RNP guidance in a single advisor circular. Advisory Circular 90-105 was rescinded and FAA Orders 8400.12C and 8400.33 have been replaced. The information now regarding equipment requirements, operational procedures, and approvals as required is contained in the newly issued Advisory Circular relative the following RNP operations:
FAA issues Advisory Circular 90-105A - Approval Guidance for RNP Operations and Barometric Vertical Navigation is the U.S. National Airspace System and in Oceanic and Remote Continental Airspace
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