Notice of Proposed Rule Making -
IFR Minima and Low Visibility Operations
To establish appropriate low visibility operational standards that are aligned among the
different components of the aviation system.
Key change proposals
- Align aircraft operational approvals and aerodrome infrastructure requirements around trigger visibility criteria of 800 metres, 550 metres and 350 metres.
- For future CASRs relating to air transport operations (such as Parts 121, 133 and 135), amend the existing proposal for approach bans to the effect that:
- the approach ban ‘limit’ would be standardised, for both precision and non-precision approaches, at the point the aircraft descends through 1,000 feet above aerodrome level; and
- a runway visibility assessment, in addition to an RVR or meteorological visibility report, may be used by a pilot to make the decision to continue or discontinue an approach.
- Adopt the revised International Civil Aviation Organization (ICAO) visibility minima for Precision Approach Category II, IIIA and IIIB.
- Establish closer alignment between Australian aerodrome infrastructure requirements and ICAO Standards and Recommended Practices (SARPs) with respect to operations in visibility conditions of less than 800 metres.
- Permit both Calvert and ALSF-2 approach light systems to be used in Australia.
- Adopt ICAO standards for runway touchdown zone and aiming point markings.
- Publish a Civil Aviation Advisory Publication (CAAP) to assist aircraft operators in applying for permission to conduct low visibility operations.
Comment period now closed.
Contact Jan Goosen, Low Visibility Operations Project Leader