AD/DHA-3/24 Amdt 1 - Tailplane Spar and Elevator Hinge Stiffener Bracket - Inspection

Overview

The Civil Aviation Regulations 1998, as amended by the Legislative instrument F2006B08981, were enacted to ensure the safety and reliability of civil aviation in Australia. This legislative instrument introduces specific airworthiness directives aimed at maintaining the highest standards of aircraft operation. One such directive, AD/DHA-3/24, pertains to the inspection of tailplane spar and elevator hinge stiffener bracket on DHA-3 (Drover) series aeroplanes, specifically models Mk. 2, 3, and 3A, to ensure they are compliant with safety standards at intervals not exceeding 500 hours of service. The policy objective of these regulations, overseen by the Civil Aviation Safety Authority, is to mitigate risks associated with aircraft operation by enforcing regular inspections and compliance checks. This is achieved through the enactment of specific airworthiness directives that mandate regular maintenance and inspection of critical components to ensure the continued safety and airworthiness of aircraft operating within Australian airspace.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to the DHA-3 (Drover) series aeroplanes, namely models Mk. 2, 3, and 3A, and mandates inspections of the tailplane spar and elevator hinge stiffener bracket at intervals not exceeding 500 hours of time in service. This regulation is enforced under the authority of the Civil Aviation Safety Authority and pertains to all operators of the specified aircraft models, ensuring adherence to safety standards set forth in the legislative instrument. The scope of this legislation is national, given the Commonwealth jurisdiction of the Civil Aviation Regulations, and it extends uniformly across Australia. While the regulation itself does not specify exclusions or exemptions, any potential exclusions or variations in application would be addressed through subordinate instruments or specific administrative guidelines. This comprehensive approach ensures that the safety directives are consistently applied to maintain the airworthiness of the specified aircraft models within the Australian aviation industry.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39, include detailed provisions under the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives (ADs). For the DHA-3 (Drover) Series Aeroplanes, AD/DHA-3/24 Amendment 1 addresses the inspection of the tailplane spar and elevator hinge stiffener bracket. This directive applies to all models Mk. 2, 3, and 3A (section 39-105). The directive mandates that these components be inspected at intervals not exceeding 500 hours of time in service (section 39-105). Compliance with AD/DHA-3/24 Amendment 1 is critical for maintaining the airworthiness of the specified Drover Series Aeroplanes. Operators of these aircraft must ensure that the inspection of the tailplane spar and elevator hinge stiffener bracket is conducted as per the outlined intervals. Failure to comply with this directive could result in the aircraft being deemed unairworthy, which could lead to grounding and potential legal repercussions (section 39-105). Under the Civil Aviation Regulations, non-compliance with ADs can lead to serious consequences. Operators who fail to adhere to the inspection requirements set forth in AD/DHA-3/24 Amendment 1 may face enforcement actions from CASA. These actions can include fines, suspension or revocation of the aircraft's airworthiness certificate, and potential criminal charges if the non-compliance results in an aviation incident or accident (section 39-105). The maximum penalties for breaches of these regulations can be substantial, reflecting the importance of strict adherence to airworthiness directives to ensure the safety of air travel.