Overview

The Civil Aviation Regulations 1998, which include the Airworthiness Directives, were enacted to ensure the safety and airworthiness of aircraft operating in Australia. One such directive, AD/B727/90, addresses the issue of hydraulic tube assemblies in Boeing 727 series aeroplanes. This directive was introduced to mitigate the risk of inadvertently cross-connecting ground spoiler up-line and down-line hydraulic tubes during maintenance, a problem identified by three overseas operators. The directive aims to ensure compliance with the Federal Aviation Administration's Amendment 39-4375 or Boeing Service Bulletin No. 727-27-202, Revision 1, thereby maintaining the integrity and safety of aircraft operations within Australia. The enactment of these regulations is overseen by the Civil Aviation Safety Authority, reflecting the policy objective to uphold stringent safety standards in the aviation sector.

Scope and Application

The Civil Aviation Regulations 1998, specifically under PART 39 - 105, govern the airworthiness directives for Boeing 727 Series aeroplanes, targeting the modification of ground spoiler hydraulic tube assemblies. This regulation applies to all models 727 with line numbers ranging from 1 to 1612, ensuring that the specified maintenance modifications are implemented to prevent the inadvertent cross-connection of ground spoiler hydraulic lines, a safety issue identified by three overseas operators. The directive mandates compliance with either FAA AD 82-10-03 Amendment 39-4375 or Boeing Service Bulletin No. 727-27-202, Revision 1, which outline the necessary modifications to address the identified safety risk. The regulation's scope is confined to civil aviation operations within Australia, enforcing adherence to these directives to maintain the safety standards required by the Civil Aviation Safety Authority.

Key Provisions

The Civil Aviation Regulations 1998, particularly in Part 39 - 105, establish the Civil Aviation Safety Authority’s (CASA) schedule of airworthiness directives. Section 39 - 105 pertains to airworthiness directives for specific aircraft types and models, such as the Boeing 727 series aeroplanes. Section 39 - 105(1) identifies the specific airworthiness directive, AD/B727/90, which mandates modifications to the ground spoiler hydraulic tube assemblies. This directive applies to all models 727 with line numbers 1 to 1612. The directive requires compliance with either FAA AD 82-10-03 Amendment 39-4375 or Boeing Service Bulletin No. 727-27-202, Revision 1. Compliance must be achieved in line with the specified requirements document (section 39 - 105(2)). Entities governed by these regulations, specifically those operating Boeing 727 series aeroplanes, must ensure adherence to the airworthiness directives outlined in section 39 - 105. Operators must conduct necessary modifications to the ground spoiler hydraulic tube assemblies as per the specified documents. The obligations include ensuring that all modifications are performed by qualified personnel and that the aircraft are inspected to confirm compliance. This is crucial to prevent issues such as inadvertently cross-connecting a ground spoiler up-line with a ground spoiler-down line, which has been reported by overseas operators during routine maintenance (section 39 - 105(3)). Failure to comply with the airworthiness directives under section 39 - 105 may result in significant civil and criminal consequences. Operators found non-compliant may face penalties, which could include substantial fines or other administrative actions. The exact penalties are not specified in the text but are typically governed by broader aviation safety laws, which can include imprisonment or fines under Australian law. It is essential for operators to ensure strict adherence to these directives to avoid any legal repercussions (section 39 - 105(4)).