AD/CESSNA 150/21 - Wing Strut Attachment Strap

Overview

The Civil Aviation Regulations 1998, as amended by the legislative instrument F2006B04920, were enacted by the Commonwealth of Australia to ensure the safety and efficiency of civil aviation operations within Australian airspace. This legislation, managed by the Civil Aviation Safety Authority, aims to establish and enforce safety standards for all civil aviation activities, including the operation of aircraft, maintenance, and airworthiness directives. Specifically, the enactment addresses gaps in the regulatory framework that could potentially compromise the safety of aircraft operations. The policy objective of these regulations is to maintain the highest possible level of safety in civil aviation through rigorous oversight and compliance requirements. One example of such regulations is the Airworthiness Directive (AD) concerning Cessna 150, F150, 152, and F152 Series Aeroplanes. The AD/CESSNA 150/21, issued on 10/73, targets specific models and serial numbers of these aircraft. It mandates corrective action related to the wing strut attachment strap, requiring compliance within 100 hours of time in service after 24 September 1973. This directive is an embodiment of the broader policy objective to ensure that aircraft remain airworthy and safe to operate, thereby protecting passengers, crew, and the public.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105 concerning the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, mandates stringent safety standards for certain aircraft, including the Cessna 150, F150, 152, and F152 series aeroplanes. This directive, AD/CESSNA 150/21, pertains to the wing strut attachment strap and applies exclusively to Model 150 aircraft with serial numbers ranging from 15074635 to 15074799 and Model A150 aircraft with serial numbers from A1500415 to A1500427. This legislative instrument is designed to ensure that these specific models adhere to safety requirements that were established to address potential issues related to the wing strut attachment straps. Compliance with these regulations is mandatory and must be achieved within 100 hours of time in service after 24 September 1973. The directive ensures that the aircraft meet the specified safety standards, thereby safeguarding the integrity and operational safety of these aeroplanes within the Australian airspace.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39 - 105, contain Airworthiness Directives (AD) that are crucial for maintaining the safety standards of certain aircraft models. One such AD, AD/CESSNA 150/21, pertains to the wing strut attachment strap of Cessna 150, F150, 152 & F152 series aeroplanes. This directive applies to Model 150 with serial numbers (S/Nos) ranging from 15074635 to 15074799 and Model A150 with S/Nos. from A1500415 to A1500427 (Section 10/73). The primary requirement of this directive is that the action must be taken in accordance with Cessna Service Letter (SL) SE 73-20. This action must be completed within 100 hours of time in service after 24 September 1973. For the entities governed by this legislation, the obligations are clear and precise. They must ensure that the specified aircraft models undergo the required modification to the wing strut attachment strap as outlined in the Cessna SL SE 73-20. The compliance must be achieved within the stipulated timeframe of 100 hours after the directive's effective date, which is 24 September 1973. Failure to adhere to these requirements can result in serious safety implications, as the AD is designed to address potential hazards that could compromise the aircraft's airworthiness. In terms of consequences, the Civil Aviation Regulations 1998 do not explicitly state penalties for non-compliance with Airworthiness Directives in this section. However, non-compliance with such directives can lead to significant civil or criminal consequences under other provisions of the Civil Aviation Act 1988 and the Civil Aviation Regulations 1998. These can include fines, imprisonment, or other regulatory actions taken by the Civil Aviation Safety Authority (CASA). The seriousness of the consequences underscores the importance of adhering to the directives to maintain the highest safety standards in civil aviation.