AD/SF340/54 Amdt 2 - Ceiling and Lavatory Lights

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105 Civil Aviation Safety Authority, introduced a schedule of airworthiness directives to ensure the safety of civil aviation operations within Australia. This legislation was enacted by the Australian Parliament and aims to mitigate risks associated with aircraft operations by issuing mandatory safety directives. One such directive, AD/SF340/54 Amendment 2, addresses issues related to the SAAB SF340 Series aeroplanes, particularly focusing on the ceiling and lavatory lights. The problem this directive targets is the charring of fluorescent lamp holders due to incorrect installation, which can lead to smoke emissions and potential fire hazards. The objective of this amendment is to ensure that corrective actions are taken to prevent such incidents by requiring inspections and necessary corrective actions on the affected aircraft models, thereby enhancing overall aviation safety. The directive mandates inspections and corrective actions on SAAB 340B aeroplanes with specific serial numbers, unless a particular modification has been incorporated. The requirement includes inspecting and correcting the installation of passenger compartment fluorescent lamps and holders, as well as ensuring the correct installation of any replaced or re-installed lamps. The directive was introduced following reports from the Swedish Aviation Safety Department about incidents related to incorrect lamp installations. The amendment became effective on 3 December 1998, providing an expanded range of affected aircraft and an optional terminating action for repetitive inspections after lamp replacements or reinstallation, thereby offering a more comprehensive safety measure.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, applies to Saab SF340 Series aeroplanes with specific serial numbers, namely those ranging from 342 to 460 inclusive, unless the Saab Aircraft AB Modification No 2936 (Service Bulletin SAAB 340-33-048) has been incorporated. This legislation mandates inspections and corrective actions on the passenger compartment fluorescent lamp installation and fluorescent lamp holders, as well as inspections of replaced or re-installed fluorescent lamps for correct installation. Compliance with these directives is required before 1 January 1999 and within one week from the date of replacement or reinstallation. The directive is applicable nationally, under the jurisdiction of the Commonwealth of Australia, and is intended to ensure the safety of air travel by addressing issues related to the installation of fluorescent lamps. The directive was amended to broaden the serial number range of affected aircraft and to provide an optional terminating action for repetitive inspections following replacement or reinstallation of the fluorescent lamps. This amendment is effective from 3 December 1998.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, contains the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, focusing on the SAAB SF340 series aeroplanes. One such directive, AD/SF340/54 Amendment 2, pertains to the ceiling and lavatory lights of the SAAB 340B series aeroplanes (section 1). This directive applies to aircraft with specific serial numbers, excluding those that have already incorporated SAAB Aircraft AB Modification No 2936 (section 2). The primary requirements of this directive involve inspecting the passenger compartment fluorescent lamp installation and holders and ensuring correct installation of fluorescent lamps after replacement or reinstallation (section 3). Compliance must be achieved by a certain date, with specific timelines provided for inspections and corrective actions (section 4). The directive notes that incorporation of the mentioned modification allows for optional terminating action for the repetitive inspections (section 5). The obligations under this directive are clear and must be adhered to by all relevant parties. Owners or operators of the specified SAAB 340B aeroplanes must ensure that the fluorescent lamp installations and holders are inspected and corrected as necessary according to the specified SAAB service bulletin (section 1). This involves thorough checks to prevent any issues arising from incorrect installation of the fluorescent lamps, which can lead to charring and smoke emissions (section 2). Additionally, any replaced or re-installed fluorescent lamps must be inspected for correct installation to prevent electrical arcing between the lamp and the holder, which can occur with both PAGE and BRUCE lamp holders (section 3). These inspections and corrective actions must be completed within specified timeframes to ensure compliance with the directive (section 4). Failure to comply with the provisions of this Airworthiness Directive can result in serious consequences. Non-compliance may lead to potential safety risks, including the risk of smoke emission due to charring of the fluorescent lamp holders, which can compromise the safety of passengers and crew (section 6). In cases of non-compliance, the Civil Aviation Safety Authority may take enforcement action, which could include fines, penalties, or other regulatory actions under the Civil Aviation Act 1988. The maximum penalties for breaches of airworthiness regulations can be substantial, reflecting the seriousness of ensuring compliance with safety directives (section 7).