COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Short SD3-30 Series Aeroplanes
AD/SD3-30/42 Electrical Wiring and Hydraulic Pipelines 7/2001
Applicability: All SD3-30 aeroplanes.
Requirement: 1. Inspect electrical wiring harnesses and the hydraulic pipelines servicing the 7P panel for fouling and, if necessary, re-route the wiring harnesses, install additionally supporting clips and sleeving in accordance with Bombardier Aerospace, Short Brothers PLC Service Bulletin (SB) SD330-24-29 dated 30 April 2001.
2. If adequate clearance between the harnesses and the main pressure hydraulic pipeline cannot be achieved during the Requirement 1 re-routing of the electrical wiring harnesses, replace the pipeline with new rerouted pipeline in accordance with SB SD330-24-29.
Note: This Service Bulletin has been classified as mandatory by the CAA(UK).
Compliance: For Requirement 1 - At the next ‘B’ Check, but no later than 90 days after the effective date of this Directive.
For Requirement 2 - Before further flight, after completion of Requirement 1 This Airworthiness Directive becomes effective on 12 July 2001.
Background: This Directive is intended to ensure that adequate clearance exists between electrical wiring and pipelines containing combustible fluids. These measures are designed to reduce the likelihood of fouling and/or chaffing, with the resultant risk of an in-flight fire.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 28 May 2001
The above AD is notified in the Commonwealth of Australia Gazette on 13 June 2001.
Overview
The Civil Aviation Regulations 1998 (CAR 1998) were enacted to provide a comprehensive regulatory framework for civil aviation in Australia. These regulations aim to ensure the safety and efficiency of civil aviation operations, including the maintenance and airworthiness of aircraft. Among the many provisions, Part 39, specifically addressing airworthiness directives, plays a crucial role in maintaining aircraft safety by addressing identified hazards. The Civil Aviation Safety Authority (CASA), acting as the delegate of the Commonwealth of Australia, issues these directives to mandate corrective actions for unsafe conditions. One such directive, AD/SD3-30/42, issued on 7 July 2001, targets SD3-30 Series Aeroplanes, requiring inspections and corrective measures to prevent electrical wiring and hydraulic pipeline fouling, thus reducing the risk of in-flight fires. This directive underscores the policy objective of maintaining stringent safety standards in civil aviation.
Scope and Application
The Civil Aviation Regulations 1998, specifically under Part 39 - 105, encompasses Airworthiness Directives issued by the Civil Aviation Safety Authority (CASA) to ensure the safe operation of aircraft within Australian airspace. The scope of this particular Airworthiness Directive (AD/SD3-30/42) applies to all SD3-30 series aeroplanes, mandating specific safety measures related to electrical wiring harnesses and hydraulic pipelines. The directive requires inspection and necessary adjustments or replacements to prevent potential fouling and consequent risks such as in-flight fires. The directive is effective from 12 July 2001 and mandates compliance by specific timelines, with inspections and corrective actions to be carried out at the next 'B' Check within 90 days from the directive's effective date, and any required pipeline replacement before further flight after the initial inspection. This AD is a legislative instrument under the Commonwealth of Australia, extending its jurisdictional reach to ensure compliance across all relevant entities operating within Australia.
Key Provisions
The Airworthiness Directive (AD) AD/SD3-30/42 issued under the Civil Aviation Regulations 1998 (CAR 1998) pertains specifically to Short SD3-30 Series aeroplanes and mandates certain actions regarding their electrical wiring and hydraulic pipelines. As per Section 39.1(1) of CAR 1998, the AD requires that all SD3-30 aeroplanes must undergo inspections of their electrical wiring harnesses and hydraulic pipelines servicing the 7P panel (Section 1). This inspection is necessary to check for any instances of fouling, and if necessary, re-routing of the electrical wiring harnesses, installation of additional supporting clips, and sleeving must be carried out in accordance with the instructions given in Bombardier Aerospace, Short Brothers PLC Service Bulletin (SB) SD330-24-29 dated 30 April 2001. If adequate clearance between the harnesses and the main pressure hydraulic pipeline cannot be achieved during the re-routing of the electrical wiring harnesses, the hydraulic pipeline must be replaced with a new rerouted pipeline, also in accordance with the aforementioned service bulletin.
The obligations imposed by this AD require aircraft owners, operators, and maintenance personnel to ensure that these specified inspections and corrective actions are completed within the stipulated timeframes. Specifically, Requirement 1 must be carried out at the next 'B' Check, but no later than 90 days after the effective date of the AD, while Requirement 2 must be completed before further flight, subsequent to Requirement 1. Compliance with these requirements is mandatory, and failure to adhere to the specified actions and timelines may result in serious safety hazards, including the risk of in-flight fires due to fouling and/or chaffing of electrical wiring and hydraulic pipelines.
The AD further outlines the consequences of non-compliance. Any breaches of the AD, such as failure to inspect and address electrical wiring and hydraulic pipeline issues, may lead to significant safety risks. While the AD does not explicitly state civil or criminal penalties, non-compliance with such safety directives can result in severe repercussions, including aircraft grounding, potential revocation of airworthiness certificates, and possible legal action under the CAR 1998 or other relevant legislation. The severity of these consequences underscores the importance of strict adherence to the requirements outlined in the AD to ensure the safety and airworthiness of the affected aircraft.