CASA 528/08 – Directions - for determining maximum weight

Overview

The Civil Aviation Regulations 1988, enacted to provide a regulatory framework for civil aviation in Australia, address the safety concerns associated with aircraft weight limitations during operations, particularly for aircraft above 5,700 kg equipped with an external loop antenna for aerial survey work. This regulation allows the Civil Aviation Safety Authority (CASA) to issue specific directions for determining the maximum weight that an aircraft's gross weight must not exceed during flight, landing, or take-off. The policy objective is to ensure the safety of air navigation by preventing aircraft from exceeding their maximum take-off or landing weight, as stipulated in their certificates of airworthiness or flight manuals. The instrument, made under the authority delegated by the Parliament under the Legislative Instruments Act 2003, applies only when the aircraft in question are operated by a particular operator and are equipped with the specified antenna. This instrument, which is a legislative instrument subject to tabling and disallowance in Parliament, aims to regulate the operations of these aircraft under specific circumstances, ensuring compliance with safety standards, particularly in adverse conditions such as night flights or flights below 1,000 feet over certain areas.

Scope and Application

The Civil Aviation Regulations 1988, as amended, apply to all aircraft operating within Australia and regulate various aspects of aviation safety, including the maximum weight of an aircraft for take-off and landing. Specifically, the instrument CASA 528/08 pertains to the operations of the SC-7 Skyvan VH-WGT and CASA 212 VH-TEM aircraft when equipped with an external loop antenna, operated by Fugro Airborne Surveys Pty Ltd. This instrument, which came into effect on 1 November 2008 and ceased on 31 October 2009, directs that operations of these aircraft must comply with CAO 20.7.1B if they include or are likely to include adverse circumstances such as night flights or low-level flights over restricted areas. Conversely, if the flights do not involve such adverse circumstances, they must comply with CAO 20.7.4. The instrument is a legislative instrument under the Legislative Instruments Act 2003, subject to the requirements of tabling and disallowance in Parliament, although consultation was deemed unnecessary due to the specific nature of the instrument.

Key Provisions

The primary sections of the legislation under discussion are Section 98 of the Civil Aviation Act 1988 and the associated Civil Aviation Regulations 1988, particularly subregulations 235(1), 235(4), and 235(6). Section 98 of the Act allows the Governor-General to create regulations concerning aviation safety, while subregulation 235(1) empowers the Civil Aviation Safety Authority (CASA) to issue directions for estimating the gross weight of an aircraft. Subregulations 235(4) and 235(6) make it an offence for the pilot in command to allow an aircraft to take off or land if its gross weight exceeds its maximum take-off weight (MTOW) or maximum landing weight (MLW). The obligations and requirements imposed by the legislation on the parties involved, particularly the operator of the aircraft, are stringent. The operator must adhere to the maximum weight limitations set out in the Civil Aviation Orders (CAO) 20.7.1B and 20.7.4. Specifically, the operator of the SC-7 Skyvan VH-WGT and CASA 212 VH-TEM must ensure that the aircraft do not exceed the specified weights when equipped with an external loop antenna. The operator must also comply with the conditions set out in the instrument CASA 34/07, which dictates that flights must adhere to CAO 20.7.1B if they involve adverse circumstances such as night flights, flights below 1,000 feet AGL over restricted areas, or landings involving such flights. Conversely, if the flight does not involve these adverse circumstances, compliance with CAO 20.7.4 is required. The legislation imposes clear penalties and consequences for non-compliance. Under subregulations 235(4) and 235(6), allowing an aircraft to take off or land in excess of its specified weight limits constitutes an offence. The maximum penalties for such breaches are not explicitly stated in the document but are generally severe, reflecting the critical importance of adhering to these safety standards. Additionally, the instrument CASA 34/07, which is a legislative instrument under the Legislative Instruments Act 2003, is subject to parliamentary oversight and disallowance, adding a layer of accountability and review to the regulatory process. The instrument CASA 528/08, which took effect on 1 November 2008 and ceased on 31 October 2009, was issued under the delegated power of CASA as stipulated in subregulation 7(1) of the Civil Aviation Regulations 1988. This instrument is a legislative instrument, as defined under the Legislative Instruments Act 2003, and it required tabling and disallowance in Parliament. Notably, consultation under section 17 of the LIA was deemed unnecessary due to the specific and technical nature of the instrument, which was a renewal of a previous instrument, CASA 34/07. The stringent regulatory framework underscores the importance of adhering to these safety directives to prevent any compromise in the safety of air navigation.