COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes
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.
AD/DHC-8/74 Oxygen - Deletion of Selector Stop
on Flow Control Valve
11/2000
Applicability: DHC-8 aircraft Models 102, 103, 106, 201, 202, 301, 311, 314, and 315, serial numbers 003 to 468 inclusive and 472 with all-passenger oxygen configurations CR 835CH00009, CR 835CH00011, CR 835CH02001, CSI 82279 or CSI 82093
installed.
Requirement: Incorporate Bombardier Modification 8/2989 (Deletion of Selector Stop on Flow Control Valve) in accordance with Bombardier Service Bulletin 8-35-19 dated 17 August 2000.
Note: Transport Canada AD CF-2000-26 refers.
Compliance: Unless previously accomplished, within 90 days time in service after the effective date of this Directive.
This Airworthiness Directive becomes effective on 2 November 2000.
Background: This Directive addresses aircraft fitted with an Automatic Passenger Presentation of Oxygen System (APPOS). Field reports have indicated that the selector stop on the flow valve control panel can be installed incorrectly, preventing the selection of either “ON” or “AUTO”. In such a case, oxygen would be prevented from being available to passengers in case of an emergency.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 25 September 2000
The above AD is notified in the Commonwealth of Australia Gazette on 4 October 2000.
Overview
The Civil Aviation Regulations 1998, specifically Part 39 - 105, addresses the ongoing maintenance and safety of aircraft within Australia, with a focus on ensuring that aeroplanes meet the required standards of airworthiness. One of the key legislative instruments under this regulation is the Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA), which aims to rectify specific safety issues identified in certain aircraft models. For instance, AD/DHC-8/74 was enacted to address a safety concern with the oxygen systems of Bombardier (Boeing Canada/De Havilland) DHC-8 Series aeroplanes, particularly the incorrect installation of the selector stop on the flow control valve, which could hinder the availability of oxygen to passengers in emergency situations. The directive mandates the implementation of Bombardier Modification 8/2989 to ensure the selector stop is correctly installed, thereby mitigating the identified risk. This AD is a crucial measure to ensure the safety and compliance of aircraft within Australian airspace.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, mandates airworthiness directives that are issued under the authority of the Civil Aviation Safety Authority (CASA). These directives are designed to ensure the safe operation of aircraft by addressing specific safety concerns. The Airworthiness Directive in question pertains to Bombardier (Boeing Canada/De Havilland) DHC-8 series aeroplanes, covering models 102, 103, 106, 201, 202, 301, 311, 314, and 315, with serial numbers ranging from 003 to 468 inclusive and 472, which are equipped with all-passenger oxygen configurations CR 835CH00009, CR 835CH00011, CR 835CH02001, CSI 82279 or CSI 82093. The directive requires the incorporation of Bombardier Modification 8/2989, specifically the deletion of the selector stop on the flow control valve, as detailed in Bombardier Service Bulletin 8-35-19 dated 17 August 2000. The action must be completed within 90 days in service after the effective date of the directive, which is 2 November 2000. The directive applies across the Commonwealth of Australia, and compliance is mandatory for the specified aircraft models and configurations to ensure the safety of passengers during flight operations.
Key Provisions
The Civil Aviation Regulations 1998, Part 39 - 105, in particular, the Airworthiness Directive (AD) AD/DHC-8/74, pertains to Bombardier (Boeing Canada/De Havilland) DHC-8 series aeroplanes. This AD mandates the incorporation of Bombardier Modification 8/2989, which involves the deletion of the selector stop on the flow control valve (section 1). This modification is intended to address safety concerns related to the oxygen system on specific models of DHC-8 aircraft, namely Models 102, 103, 106, 201, 202, 301, 311, 314, and 315, with serial numbers 003 to 468 inclusive and 472, equipped with certain oxygen configurations (section 2). The requirement must be carried out in accordance with Bombardier Service Bulletin 8-35-19 dated 17 August 2000, and this action must be completed within 90 days of the aircraft being in service after the effective date of the Directive, which is 2 November 2000 (section 3).
The AD imposes obligations on aircraft operators and maintenance personnel to ensure compliance with the specified modification. This includes correctly implementing Bombardier Modification 8/2989 and ensuring that the selector stop on the flow control valve is deleted as outlined in the referenced service bulletin (section 2). The directive mandates that this modification be completed within the stipulated timeframe, and any non-compliance could result in the aircraft being deemed non-airworthy. Operators and maintenance personnel must also ensure that the aircraft's maintenance records are updated to reflect that the modification has been carried out (section 3).
Failure to comply with the requirements set out in this Airworthiness Directive can have significant legal and safety repercussions. The Civil Aviation Safety Authority (CASA) may take enforcement action against operators who fail to adhere to the AD. This could include imposing fines, issuing penalties, or even grounding the aircraft until the necessary modifications are completed. In severe cases, non-compliance could lead to criminal charges, particularly if the failure to comply results in a safety incident or endangers passengers or crew (section 4). The specific penalties and consequences for non-compliance are determined by CASA and can vary depending on the severity and impact of the non-compliance.