AD/MSR/10 - Firewall Sealing - Modification

Overview

The Civil Aviation Regulations 1998, specifically PART 39 - 105, establish a schedule of airworthiness directives that aim to ensure the safety of aircraft in Australian airspace. Enacted by the Parliament of Australia, these regulations were designed to address the need for consistent and stringent safety standards across the aviation industry. One such directive is AD/MSR/10 concerning the Aerospatiale Rallye series aeroplanes, focusing on the critical issue of firewall sealing. This directive was introduced to mitigate the risk of fire within the aircraft by mandating the replacement of existing firewall sealant with a fireproof alternative or compliance with the FAA AD 70-17-6 standard. The objective of this regulation is to enhance the safety of flight operations by preventing potential fire hazards that could compromise the integrity of the aircraft and the safety of its occupants. Compliance with these airworthiness directives is mandatory within 100 hours of time in service after the specified date of 30 October 1970.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105 under the Civil Aviation Safety Authority Schedule of Airworthiness Directives, pertains to Aerospatiale Rallye Series Aeroplanes and mandates modifications to ensure continued airworthiness. This regulation applies to all models 880B, 885, 893A, and 894A within the Aerospatiale Rallye Series, encompassing aircraft that are registered and operated within the Commonwealth of Australia. The directive requires operators to replace the existing firewall sealant with a fireproof sealant or comply with FAA AD 70-17-6, within 100 hours of time in service following 30 October 1970. The scope of the regulation extends to any entity or individual operating these specified aircraft models in Australia, thereby ensuring adherence to safety standards set by the Civil Aviation Safety Authority. There are no explicit exclusions or exemptions mentioned in the text, suggesting that all qualifying aircraft must comply with the directive. The regulation's application may be further detailed or extended through subordinate instruments, although these are not elaborated upon in the provided excerpt.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998, Part 39 - 105, focus on ensuring the airworthiness of Aerospatiale Rallye Series Aeroplanes through specific safety directives. Section 10/70 specifically addresses the firewall sealing for models 880B, 885, 893A, and 894A. This section requires that the existing firewall sealant be replaced with a fireproof sealant, or alternatively, that the measures outlined in FAA AD 70-17-6 be implemented (Section 10/70). These requirements are designed to enhance the safety of the aircraft by ensuring that the firewall is adequately sealed to prevent the spread of fire in the event of an emergency. The compliance period stipulated in the regulations is within 100 hours of time in service after 30 October 1970 (Section 10/70). The obligations imposed by this legislation on the parties or entities it governs are clear and specific. Operators of Aerospatiale Rallye Series Aeroplanes must ensure that the mandated modifications are carried out within the prescribed timeframe. This includes either replacing the existing firewall sealant with a fireproof sealant or implementing the alternative measures specified in FAA AD 70-17-6. Failure to adhere to these requirements can result in the aircraft not being deemed airworthy, which could lead to operational restrictions or grounding of the aircraft until compliance is achieved. Failure to comply with the airworthiness directives outlined in the Civil Aviation Regulations 1998 can have serious consequences. While specific penalties are not detailed in the text, breaches of airworthiness requirements can lead to both civil and criminal penalties under Australian law. Civil penalties may include fines, and in severe cases, criminal charges could result in imprisonment. Additionally, non-compliance can result in the suspension or revocation of the aircraft's certificate of airworthiness, leading to significant operational disruptions for the operators.