CASA 34/07 - Directions - for determining maximum weight

Overview

The Civil Aviation Regulations 1988 (CAR 1988) were enacted to provide a comprehensive regulatory framework for the safety of air navigation in Australia. One of the key provisions of the Act allows the Governor-General to make regulations necessary for the safety of air navigation, and this authority is exercised by the Civil Aviation Safety Authority (CASA). The problem this legislation addresses is ensuring that aircraft, particularly those operating above a certain weight threshold, adhere to specific weight limitations to maintain safety standards. In this context, the CAR 1988 allows CASA to issue directions concerning the maximum take-off weight and landing weight of aircraft, which is critical for preventing overloading and ensuring safe flight operations. The policy objective of these regulations is to enhance aviation safety by imposing stringent weight restrictions and providing clear guidelines for compliance, thereby mitigating risks associated with aircraft operations.

Scope and Application

The instrument applies specifically to the operations of two aircraft, the SC-7 Skyvan VH-WGT and CASA 212 VH-TEM, when they are operated by Fugro Airborne Surveys Pty Ltd and equipped with an external loop antenna. These aircraft are subject to specific weight limitations under the Civil Aviation Regulations 1988 (CAR 1988), and the instrument provides detailed directions for determining the maximum weight at which these aircraft can operate safely. Notably, the instrument applies only when these aircraft are configured with the specified antenna, and it delineates conditions under which operations must comply with either Civil Aviation Order 20.7.1B or Civil Aviation Order 20.7.4, depending on whether adverse circumstances are present. Adverse circumstances include flights outside daylight hours, take-offs or landings involving flight below 1,000 feet above ground level (AGL) for more than 3 km over certain populated or industrial areas, and other specified conditions that CASA deems could compromise safety. The instrument also outlines that CASA may approve operations that might otherwise be considered unsafe if specific safety criteria are met. This legislative instrument, made under the delegated power of the Civil Aviation Safety Authority (CASA), is subject to parliamentary scrutiny and disallowance as per the Legislative Instruments Act 2003. The instrument will come into effect on the day after registration and will cease to have effect on 31 October 2008.

Key Provisions

The main operative sections of this instrument pertain to the regulation of the maximum take-off weight for certain aircraft, specifically SC-7 Skyvan VH-WGT and CASA 212 VH-TEM, when equipped with an external loop antenna for aerial survey work. Under section 235(1) of the Civil Aviation Regulations 1988, the Civil Aviation Safety Authority (CASA) is empowered to issue directions to determine the gross weight of an aircraft, including passengers, cargo, and fuel, for the safety of air navigation. This instrument specifically provides directions for determining the maximum weight, which must be less than the maximum take-off weight (MTOW) or maximum landing weight (MLW), for the aircraft in question. It also clarifies that the operator must comply with Civil Aviation Order 20.7.1B (CAO 20.7.1B) if a flight, landing, or take-off is likely to include adverse circumstances such as night-time flight, low-level flight over populated areas, or landings below 1,000 feet above ground level over restricted areas. The obligations and requirements imposed by this instrument on the operator, Fugro Airborne Surveys Pty Ltd, are twofold. Primarily, the operator must ensure that the aircraft are operated in accordance with the specified weight limitations. This involves adhering to CAO 20.7.1B during adverse circumstances, which include flights outside daylight hours, take-offs or landings with a flight path below 1,000 feet AGL for more than 3 km over certain areas, and landings (except emergencies) with a flight path below 1,000 feet AGL over restricted areas. Conversely, if an operation does not include or is not likely to include these adverse circumstances, the operator must comply with CAO 20.7.4. The instrument also mandates that the operator must not allow the aircraft to take off or land if its gross weight exceeds the MTOW or MLW, as stipulated under subregulations 235(4) and (6) of the Civil Aviation Regulations 1988. The instrument outlines specific consequences for non-compliance. Under subregulations 235(4) and (6) of the Civil Aviation Regulations 1988, it is an offence for the pilot in command to allow an aircraft to take off or land if its gross weight exceeds the MTOW or MLW. The penalties for such an offence are not explicitly stated in the instrument, but generally, they can include fines and imprisonment under the Civil Aviation Act 1988. Additionally, CASA may take further regulatory action, including grounding the aircraft or revoking the operator's licence, to ensure compliance and maintain the safety of air navigation. The instrument itself comes into effect on the day after it is registered and stops having effect at the end of 31 October 2008.