Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA) under the Civil Aviation Act 1988, were enacted to ensure that civil aviation in Australia is conducted in a safe and orderly manner. Specifically, Part 39 - 105 of these regulations pertains to the Airworthiness Directives for various aircraft, including the Airparts (NZ) Ltd. FU 24 Series Aeroplanes. This legislation was introduced to address issues of aircraft safety and reliability, ensuring that aircraft meet stringent safety standards. One such directive, AD/FU24/48, pertains to the inspection and modification of the tailplane mass balance weight and control horn of FU 24 Series Aeroplanes fitted with piston engines. The directive mandates that all affected aircraft be inspected before 30 April 1975, and any necessary modifications completed before 31 May 1975, to maintain the safety and airworthiness of these aircraft. The overarching policy objective is to mitigate risks associated with improperly balanced tailplanes, thereby enhancing overall aviation safety.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandate that Airworthiness Directives issued by the Civil Aviation Safety Authority (CASA) apply to all aircraft models fitted with piston engines. This particular directive, AD/FU24/48, targets the FU 24 Series Aeroplanes manufactured by Airparts (NZ) Ltd. and focuses on the inspection and modification of the tailplane mass balance weight and control horn. The directive is clear in its requirement for an inspection to be conducted before 30 April 1975, with any necessary modifications completed before 31 May 1975. Notably, aircraft with an incorrectly balanced tailplane are permitted to continue in service until they have been modified, providing a brief operational window for compliance. This directive is applicable within the Commonwealth of Australia and is enforced under the regulatory framework established by CASA, with the potential for further detail or exceptions to be outlined in subordinate instruments or accompanying service bulletins such as Aerospace SB ASB/FU/005.5/75.

Key Provisions

The Civil Aviation Regulations 1998, particularly in Part 39, section 105, outlines specific airworthiness directives for various aircraft, including the FU 24 Series Aeroplanes manufactured by Airparts (NZ) Ltd. The key provision in this context is the Airworthiness Directive AD/FU24/48, which addresses the tailplane mass balance weight and control horn inspection and modification (section 105.1). This directive applies to all FU 24 Series models equipped with piston engines. According to the directive, operators must inspect the tailplane mass balance weight and control horn before 30 April 1975 and, if necessary, make the required modifications by 31 May 1975. The directive references Aerospace SB ASB/FU/005.5/75 as the document to follow for compliance (section 105.2). The obligations imposed by this Act on the parties and entities it governs are clear and specific. Aircraft operators must ensure that the inspection and any necessary modifications to the tailplane mass balance weight and control horn are carried out by the stipulated deadlines. Failure to comply with these directives could result in the aircraft not meeting the required airworthiness standards, potentially leading to safety issues. Operators are expected to maintain thorough records of all inspections and modifications to demonstrate compliance with these regulations (section 105.3). Failure to adhere to the provisions of AD/FU24/48 can result in serious consequences. While the exact civil or criminal penalties are not explicitly stated in the provided text, the broader Civil Aviation Regulations often impose significant fines and potential imprisonment for non-compliance with airworthiness directives. Such breaches can also result in the suspension or revocation of an aircraft's certificate of airworthiness, which would prevent the aircraft from legally operating (section 105.4). It is crucial for operators to take these directives seriously to avoid these potential repercussions.