AD/GAF-N22/52 - Stub Wing Upper Front Spar Cap

Overview

The Civil Aviation Regulations 1998, as part of their continuous commitment to aviation safety, introduced specific directives through the Civil Aviation Safety Authority to address safety concerns identified in certain aircraft models. One such directive is the AD/GAF-N22/52 concerning the stub wing upper front spar cap of the GAF N22 and N24 series aeroplanes. This directive was enacted to mitigate risks identified through fatigue testing, which indicated potential structural weaknesses in the specified area of the aircraft. The policy objective behind this regulation is to ensure that the aircraft maintain their airworthiness by adhering to the manufacturer's recommendations and ensuring that any critical inspections and repairs are performed with the requisite expertise and equipment, thus preventing potential in-flight failures. The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority, aim to enforce these directives to safeguard the integrity and reliability of civil aviation operations within Australia. This directive specifically targets all models of the GAF N22 and N24 series aeroplanes, requiring compliance with the detailed actions outlined in Nomad Service Bulletin NMD-53-6 and leveraging the manufacturer's resources as needed, as specified in Nomad Product Support Information Letter No. IL86-07. By doing so, the regulations seek to maintain a high standard of aviation safety and operational reliability, ensuring that all aircraft meet stringent safety criteria before they are allowed to continue service.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, govern the airworthiness directives for aircraft in Australia, with this particular legislation focusing on the GAF N22 and N24 series aeroplanes. This directive applies to all models within these series, mandating adherence to the requirements set forth in the Nomad Service Bulletin NMD-53-6. This directive pertains to the inspection of critical fastener holes in the stub wing upper front spar cap, near the wing strut attachment, based on findings from full-scale fatigue tests conducted by the manufacturer. It is imperative for operators to comply with these directives to ensure the continued airworthiness of their aircraft. Notably, due to the complexity of the required actions, operators are encouraged to consider the manufacturer's offer of specialist personnel and equipment, as detailed in the Nomad Product Support Information Letter No. IL86-07. The scope of this legislation extends to all operators of GAF N22 and N24 series aeroplanes within Australia, aligning with the broader regulatory framework established by the Civil Aviation Safety Authority. While the directive is comprehensive, it does not explicitly outline exclusions or exemptions, implying that all applicable aircraft must comply with the stated requirements. The application of this directive is not limited by geographic boundaries within Australia, covering both domestic and international flights where these aircraft are operated under Australian jurisdiction. This regulation is instrumental in maintaining safety standards and is subject to enforcement through the Civil Aviation Regulations 1998, with potential extensions or restrictions being addressed via subordinate instruments as necessary.

Key Provisions

The main operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 105, detail the Airworthiness Directives for GAF N22 and N24 series aeroplanes. Section AD/GAF-N22/52 concerns the stub wing upper front spar cap, requiring compliance with the Nomad Service Bulletin NMD-53-6. This section applies to all models of the specified aircraft (1/87). The directive mandates that actions must be taken in accordance with the aforementioned service bulletin. It is recommended that operators consider the manufacturer's offer of specialist personnel and equipment, as outlined in Nomad Product Support Information Letter No. IL86-07, due to the particular difficulties associated with fastener removal and the critical nature of the operation. The obligations and requirements imposed by this Act on the parties or entities it governs include the necessity to inspect critical fastener holes in the stub wing upper front spar cap, near the wing strut attachment. The inspection must be performed according to the instructions provided in the Nomad Service Bulletin NMD-53-6. Operators are also encouraged to consider utilising the manufacturer's specialist personnel and equipment, which are detailed in the Nomad Product Support Information Letter No. IL86-07. Compliance with these directives is essential to ensure the continued airworthiness of the aircraft and to mitigate any potential risks associated with the identified issues. There are no explicit offences, penalties, or civil/criminal consequences mentioned within this specific Airworthiness Directive (AD/GAF-N22/52). However, non-compliance with airworthiness directives can result in severe consequences, including the grounding of the aircraft, potential fines, and legal action by the Civil Aviation Safety Authority (CASA). The maximum penalties for non-compliance with civil aviation regulations are not specified in this particular directive but could include fines and imprisonment under general aviation safety laws. Overall, this directive is aimed at ensuring the structural integrity of the GAF N22 and N24 series aeroplanes by requiring regular inspections of critical components. By adhering to the specified requirements and recommendations, operators can help maintain the safety and airworthiness of their aircraft.