AD/AC/47 - Front Seat Restraint Installation - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia's Parliament, serve to ensure the safety and regulation of civil aviation within Australia. Within this comprehensive regulatory framework, Part 39 focuses on maintaining the airworthiness of aircraft, with the objective of preventing accidents and incidents by ensuring that all aircraft meet necessary safety standards. The specific Airworthiness Directive AD/AC/47 pertains to the modification of front seat restraint installations in Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600, and 700) series aeroplanes, requiring the fitting of safety harnesses to enhance pilot safety. This directive was introduced to address the gap in safety measures for pilots in these aircraft models, ensuring compliance with airworthiness standards and mitigating potential risks associated with inadequate restraint systems.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandates the installation of safety harnesses in the front seat restraint systems of Twin Commander (Gulfstream/Rockwell/Aerocommander 500, 600 and 700) series aeroplanes. This directive applies universally to all models of these aeroplanes within the Commonwealth of Australia. The requirement necessitates the modification of each front seat restraint installation to incorporate a safety harness, which must be in accordance with a scheme approved by the Secretary. Compliance with these airworthiness directives must be achieved before 1 August 1973. The regulation's scope is thus limited to ensuring the safety of the front seat occupants in these specific aircraft models through the specified modification, and its application is enforced by the Civil Aviation Safety Authority. The regulation does not detail any exclusions, exemptions, or thresholds, and any further specifics or extensions to its application are likely to be addressed in subordinate instruments issued by the relevant authorities.

Key Provisions

The key provisions of the Civil Aviation Regulations 1998, specifically under PART 39 - 105, involve the Civil Aviation Safety Authority (CASA) issuing an Airworthiness Directive (AD) for Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) series aeroplanes. The AD, numbered AD/AC/47, mandates the modification of each front seat restraint installation by fitting a safety harness that must be approved by the Secretary (section 8/72). This requirement applies to all models within the specified series of aeroplanes. Under these regulations, the primary obligation for aircraft operators and owners is to ensure that the modification to the front seat restraint installation is carried out as stipulated in the AD. This involves installing an approved safety harness in each front seat of the aircraft to meet the safety standards set forth by CASA. The compliance date for these modifications is set before 1 August 1973, meaning operators must complete the required modifications by this date to remain compliant with the regulations. Failure to comply with the requirements of this AD may result in significant consequences. While the specific penalties or consequences for non-compliance are not detailed in the provided excerpt, it is generally understood that non-compliance with CASA directives can lead to severe penalties under the Civil Aviation Act 1988. This can include fines, suspension or revocation of the aircraft's certificate of airworthiness, and potential criminal charges against the operators or owners. The exact penalties would depend on the severity of the non-compliance and any additional factors deemed relevant by CASA or a court of law.