Overview

The Civil Aviation Regulations 1998, specifically within Part 39 - 105, establish the Civil Aviation Safety Authority’s Schedule of Airworthiness Directives, which is pivotal for ensuring the safety and airworthiness of aircraft. One such directive is AD/DC3/28, which pertains to the Douglas DC3 Series Aeroplanes. Enacted by the Commonwealth of Australia, this legislation aims to address the critical issue of ensuring hydraulic pressure availability during critical flight phases, particularly in the event of engine failure during take-off. This reissuance of the directive ensures that all models comply with the specified modifications to enhance safety, thereby fulfilling the policy objective of maintaining stringent safety standards within the civil aviation sector. The reissuance of AD/DC3/28 is a strategic measure to ensure continued compliance with safety protocols, emphasising the importance of timely modifications to the hydraulic system. This action underscores the Civil Aviation Safety Authority's commitment to proactive safety measures, ensuring that all aircraft maintain optimal operational integrity. The directive’s applicability across all models of the Douglas DC3 Series Aeroplanes highlights the regulatory body's dedication to uniformity in safety standards and the prevention of potential hazards during critical flight operations.

Scope and Application

The Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically Part 39 - 105, pertains to the maintenance and operational standards of the Douglas DC3 Series Aeroplanes. This legislative instrument applies to all models within this series, ensuring that any aircraft operator or entity utilising a Douglas DC3 must comply with the stipulated modifications and safety measures. The directive mandates that unless the required modifications have already been completed within 100 hours of time in service after 31 May 1984, operators must adhere to the specified hydraulic system modifications outlined in Douglas Service Bulletin No. 239. This ensures the availability of hydraulic pressure to raise the undercarriage in the event of an engine failure during the take-off phase. The directive is reissued with no changes to the requirement, thereby maintaining the same safety standards across the industry. The scope of the Act is limited to the aviation industry, particularly targeting aircraft operators and maintenance entities involved with Douglas DC3 Series Aeroplanes within the Commonwealth of Australia.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39 - 105, specifically address the airworthiness directives for the Douglas DC3 series aeroplanes. Within this framework, AD/DC3/28 is a significant reissuance focusing on modifications to the hydraulic system (Section 1/84). The directive mandates that all models of the Douglas DC3 series must comply with the requirements unless they have already been accomplished within 100 hours of time in service after 31 May 1984. The directive is reissued without any changes to the original requirement, underscoring its importance in ensuring aircraft safety. The modification aims to ensure the availability of hydraulic pressure to raise the undercarriage if necessary during an engine failure in the take-off phase. The obligations under AD/DC3/28 include ensuring that the hydraulic system modifications specified in Douglas SB No 239 are implemented. Operators of Douglas DC3 series aeroplanes must verify that these modifications are completed within the stipulated timeframe unless they have already been performed. The requirement is clear and applies universally to all models within this series, ensuring a standardised approach to safety compliance. Failure to comply with the provisions of AD/DC3/28 can result in significant consequences. While the specific penalties are not detailed in the text provided, it is understood that non-compliance with airworthiness directives can lead to enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions may include fines, suspension or revocation of airworthiness certificates, and potentially criminal charges. The severity of the penalties reflects the critical nature of these modifications in maintaining the safety and operational integrity of the aircraft.