NPRM 1209AS – New precision instrument approach operations
In 2007, the Civil Aviation Safety Authority (CASA) commenced Project AS 07/13 – Regulation of Low Visibility Operations – to review low visibility operations in Australia and to develop appropriate requirements and guidelines for the conduct of low visibility operations. CASA published a Discussion Paper (DP) 0805AS in August 2008, and a Notice of Proposed Rule Making Notice of Proposed Rule Making (NPRM) 0906AS in December 2009. Following consultation and review, CASA released Notice of Final Rule Making (NFRM) 0906AS in July 2011 in which CASA introduced a number of changes to aircraft operation, aerodrome, air traffic control, and instrument flight procedure design relating to low visibility operations.
Part of the original scope of Project AS 07/13 was to consider the introduction of instrument approach procedures which enable reduced operating minima through the use of Head Up Display (HUD) systems. Following an initial review, CASA informed industry in Discussion Paper (DP) 0805AS that HUD standards would not be included in the initial change program because of uncertainty about the development of international standards for such operations. However, it was indicated that CASA would be amenable to aircraft operators submitting proposals to CASA that demonstrated HUD operations could be safely conducted.
Following the release of final rules under the low visibility project, there has been continued interest from industry on the HUD issue. In addition, the International Civil Aviation Organization (ICAO) also introduced changes to ICAO Annex 6 (Operation of Aircraft), Parts I, II and III – which allow States to approve the use of HUD to gain operational benefit.
Therefore CASA has decided to progress the development of suitable standards for the use of HUD and other aircraft systems for operational advantage.
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