AD/CESSNA 310/40 - Pre-Certification Requirements - Modifications

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, aim to ensure the safety and efficiency of civil aviation within the country. Part 39, specifically under Schedule of Airworthiness Directives, addresses modifications and pre-certification requirements for certain aircraft models, such as the Cessna 310 Series Aeroplanes. This legislation was introduced to fill critical gaps in ensuring that aircraft meet specific safety and operational standards. The policy objective is to maintain a high level of safety in civil aviation by mandating precise modifications to aircraft systems and equipment, ensuring they comply with the relevant Australian civil aviation regulations and standards. The specific Airworthiness Directive AD/CESSNA 310/40 mandates several modifications for model 310R aircraft, including the installation of placards prohibiting smoking, ensuring proper fuelling equipment bonding, providing external earthing points, modifying the turn coordinator failure warning system, and preventing the connection of reversed polarity or phase sequence power to the aircraft's electrical system. These directives are intended to enhance the overall safety and reliability of the aircraft, aligning with the overarching goal of the Civil Aviation Regulations to safeguard the public and maintain the integrity of civil aviation operations.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, applies to all model 310R aircraft, encompassing both persons and entities involved in the operation and maintenance of these aircraft. The regulation is applicable within the Commonwealth of Australia, enforcing standards that ensure the safety and airworthiness of the Cessna 310 Series Aeroplanes. The scope of the Act is limited to modifications and requirements that must be met by these aircraft, including the installation of placards prohibiting smoking in the cabin, specific modifications to the aircraft’s fuelling equipment and bonding points, alterations to the turn co-ordinator failure warning system, and changes to the external electrical power system to prevent reversed polarity or phase sequence. Compliance with these directives is mandatory and must be achieved before 30 September 1975. The regulations do not specify any exclusions or exemptions, and their application is extended through subordinate instruments that detail the approved schemes for modifications and compliance.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, which concerns the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, includes a directive for Cessna 310 Series Aeroplanes, identified as AD/CESSNA 310/40. Section 9/75 of this directive applies to all model 310R aircraft and mandates several modifications to ensure compliance with safety standards. Primarily, it requires the installation of a placard in the cabin indicating the periods when smoking is prohibited (section 1). This is a safety measure to mitigate the risk of in-flight fires. Secondly, the directive necessitates the installation of fuelling equipment bonding points at each fuel filling point and external earthing points for ground connections, either on each main undercarriage assembly or on the nose gear (section 2). These modifications are crucial for preventing static electricity discharges during fuelling, which could lead to hazardous situations. Additionally, the directive calls for a modification to the turn co-ordinator failure warning system to continuously monitor the instrument power supply, following a scheme approved by the Secretary (section 3). This ensures that any failure in the turn co-ordinator is promptly detected, enhancing flight safety. Finally, the directive requires the aircraft's external electrical power system to be modified to prevent a power supply of reversed polarity or phase sequence from being connected to the aircraft electrical system, also to a scheme approved by the Secretary (section 4). This prevents potential electrical failures that could compromise the aircraft's systems. The obligations imposed by this directive are clear and specific. Owners or operators of model 310R Cessna aircraft must ensure that the mandated modifications are carried out by a certified individual or entity before the deadline of 30 September 1975 (section 9/75). This includes the installation of placards, fuelling equipment bonding points, external earthing points, and the modification of both the turn co-ordinator failure warning system and the external electrical power system. The modifications must adhere to the schemes approved by the Secretary, ensuring that all safety protocols are met. Documentation of these modifications must be kept on file and be available for inspection by the Civil Aviation Safety Authority upon request. Failure to comply with the requirements of this directive can result in serious consequences. While the specific penalties are not detailed within the directive, non-compliance with Civil Aviation Regulations can lead to significant civil and criminal penalties. For civil aviation offences, penalties can include substantial fines, and in severe cases, the suspension or revocation of the aircraft's certificate of airworthiness. Criminal penalties can also apply, potentially resulting in imprisonment for individuals found guilty of violating the regulations. It is imperative for aircraft operators to adhere strictly to the directive to avoid these severe repercussions.