Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, serve as a foundational regulatory framework governing all aspects of civil aviation within the country. This legislation was introduced to ensure that aviation safety standards are met, addressing any gaps in the regulatory environment to protect the public and enhance the safety of civil aviation. The regulations are administered by the Civil Aviation Safety Authority (CASA), which is tasked with enforcing compliance and setting safety standards in the industry. One particular area of focus within these regulations is the issuance of Airworthiness Directives, which are mandatory orders aimed at ensuring the continued airworthiness of aircraft. These directives are designed to address specific safety concerns that may arise over time as aircraft are operated. The policy objective behind these regulations and directives is to maintain the highest possible safety standards in the civil aviation sector, thereby protecting passengers, crew, and the general public from aviation-related risks.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, concerns the Civil Aviation Safety Authority's schedule of airworthiness directives for aircraft. This regulation applies to all Cessna 441 model aircraft with serial numbers ranging from 441-0001 to -0106 and -0109. The requirement outlined in AD/CESSNA 441/70 focuses on the modification of the elevator horn inboard tip rib to prevent foreign material from entering or exiting the elevator tip rib. This modification is crucial for ensuring the safety and airworthiness of these specific aircraft. The compliance deadline is set for 25 hours of time in service after 28 February 1980, unless the modification has already been completed. This regulation operates under the jurisdictional reach of the Commonwealth of Australia and is overseen by the Civil Aviation Safety Authority. The regulation does not explicitly state any exclusions, exemptions, or thresholds, but it is reinforced by the Propjet SIL No. PJ79-32.4/80, indicating the importance of adhering to the specified modifications. The scope of the directive is limited to the specified models and serial numbers of Cessna 441 aircraft, ensuring that only those aircraft within the prescribed range are subject to the regulation.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 - 105, outlines the Airworthiness Directive (AD) concerning the Cessna 400 series aeroplanes. This AD, identified as AD/CESSNA 400/70, mandates a modification to the elevator horn inboard tip rib. This directive applies to all Cessna model 441 with serial numbers ranging from 441-0001 to 441-0106 and 441-0109. The modification is detailed in Cessna Propjet Service Letter No. PJ79-32.4/80. According to this directive, the required modification must be completed unless it has already been accomplished, within 25 hours of time in service after 28 February 1980. The primary obligation imposed by this AD is that the specified Cessna 400 series aircraft must undergo a modification to the elevator horn inboard tip rib. This modification is critical to prevent the ingress or egress of foreign material into the elevator tip rib. The objective is to ensure the continued airworthiness and safety of the aircraft by mitigating potential risks associated with such foreign material. Compliance with this directive is mandatory for the specified aircraft, and it must be performed within the stipulated timeframe to ensure adherence to safety standards. Failure to comply with the requirements of AD/CESSNA 400/70 could result in serious safety implications. The Civil Aviation Safety Authority (CASA) has the authority to enforce compliance with these regulations. Non-compliance may lead to enforcement actions, including potential grounding of the aircraft until the required modifications are completed. Such actions are taken to uphold the highest safety standards in civil aviation and to protect the integrity of the aircraft's operational capability. In terms of penalties and consequences, the Civil Aviation Regulations 1998 do not explicitly detail the penalties for non-compliance with this specific AD in the provided text. However, generally, non-compliance with CASA directives can lead to significant civil and criminal penalties. These may include fines, enforcement actions, and potential criminal charges for individuals or entities found to be in breach of the regulations. The severity of the penalties can depend on the nature and extent of the non-compliance, and CASA has the discretion to impose appropriate measures to ensure compliance and safety.