AD/SF340/32 - Fuel Tank Access Door Area

Overview

The Civil Aviation Regulations 1998, as amended by the legislative instrument F2006B06961, was enacted to address the problem of corrosion in the fuel tank access door area of the SAAB SF340 series aeroplanes. The regulations were introduced by the Civil Aviation Safety Authority (CASA) to ensure the safety and airworthiness of these aircraft, which are critical for ensuring the safety of passengers and crew. The regulations aim to mitigate the risk of corrosion, which can compromise the structural integrity of the aircraft, potentially leading to fuel leaks and other safety hazards. By mandating specific actions and compliance timelines for inspections, corrosion removal, and surface treatments, as well as the installation of protective plates, the legislation seeks to prevent structural failures and enhance the operational safety of the affected aircraft models. The policy objective behind these regulations is to mandate timely and effective corrective measures to address known safety issues, ensuring that the SAAB SF340 series aeroplanes meet the necessary safety standards. The regulations specifically target the corrosion issue in the fuel tank access door area by requiring adherence to SAAB Scania AB Service Bulletin SAAB 340-57-020, which provides detailed guidance on the necessary actions to be taken. This legislative measure reflects the commitment of CASA to proactive safety management and the enforcement of stringent airworthiness standards to protect the aviation industry and the public.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, mandates specific actions for Saab SF340 series aeroplanes. This regulation applies to Saab SF340A aeroplanes with serial numbers ranging from 004 to 159 inclusive, as well as Saab 340B aeroplanes with serial numbers from 160 to 299 inclusive. The directive mandates compliance with SAAB Scania AB Service Bulletin SAAB 340-57-020, addressing issues identified by Swedish (LFV) AD 1-052. The directive requires inspections, corrosion removal, surface treatment, and the installation of protective plates to mitigate the risk of structural weakness and potential fuel leakage in the fuel tank access door area, with specific compliance deadlines set prior to 2 October 1992 for the inspection, corrosion removal, and surface treatment, and prior to 2 April 1993 for the installation of protective plates. This legislation ensures that affected aircraft are maintained to the required safety standards, thereby enhancing the overall safety of civil aviation operations within Australia and its territories.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998 pertaining to the SAAB SF340 Series Aeroplanes are outlined in Part 39 - 105, specifically AD/SF340/32. This section mandates actions for models SF340A with serial numbers 004 through 159, and models 340B with serial numbers 160 through 299. The requirement is for compliance with SAAB Scania AB Service Bulletin SAAB 340-57-020, referencing Swedish (LFV) AD 1-052. The directive necessitates actions to address corrosion issues in the fuel tank access door area, including inspection, corrosion removal, surface treatment, and the installation of protective plates. The compliance deadlines set forth in the Swedish AD have been extended by about two months for Australian operations. The Civil Aviation Regulations impose several obligations on the operators and maintainers of the specified SAAB SF340 models. Primarily, these include conducting thorough inspections to identify and address corrosion in the fuel tank access door area. Operators must ensure that corrosion removal and surface treatment are completed before 2 October 1992. Additionally, the installation of protective plates must be completed before 2 April 1993. Compliance with these directives is essential to prevent potential reductions in wing strength and the risk of fuel leakage, ensuring the continued airworthiness and safety of the aircraft. Failure to comply with the provisions of the Civil Aviation Regulations regarding SAAB SF340 models can lead to significant consequences. Although the specific penalties are not detailed within the legislative instrument, non-compliance with airworthiness directives generally can result in severe penalties under Australian aviation law. These may include fines, enforcement actions, and potential grounding of the aircraft. Furthermore, operators could face civil or criminal liability if non-compliance leads to accidents or incidents, further underscoring the importance of adhering to the stipulated timelines and requirements. The legislative instrument underscores the importance of maintaining the structural integrity of the aircraft, particularly in areas prone to corrosion. The requirement for inspections and corrective actions before specific dates ensures that these vulnerabilities are addressed in a timely manner. Operators must ensure that all personnel involved in the maintenance and inspection processes are adequately trained and that all procedures are meticulously followed to avoid any lapses in compliance. Ensuring compliance not only maintains the safety standards set by the Civil Aviation Safety Authority but also upholds the operational reliability of the aircraft in service.