AD/DHC-8/42 - Door Labels

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, serve as a comprehensive framework governing civil aviation safety and operations within the country. One specific legislative instrument within this regulatory scheme is F2006B09198, which pertains to Airworthiness Directives for Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes, particularly AD/DHC-8/42 concerning door labels. This legislative instrument was introduced to address the safety gap where passengers had mistakenly identified the passenger exit door handle as the toilet door handle, leading to incidents of aircraft depressurisation. The policy objective behind this directive is to ensure the safety of passengers and crew by preventing such confusion through clear and distinct labelling on aircraft doors, aligning with international safety standards set by Transport Canada. Compliance with these directives is mandatory for operators of DHC-8 aircraft with specific serial numbers to mitigate safety risks.

Scope and Application

The Civil Aviation Safety Authority (CASA) has mandated, through the Civil Aviation Regulations 1998, specific requirements for the maintenance and operation of Bombardier (Boeing Canada/De Havilland) DHC-8 Series aeroplanes, specifically in relation to door labels. This regulation applies to all DHC-8 aircraft series with serial numbers ranging from 3 to 402. The directive aims to prevent confusion that can lead to safety hazards, such as passengers mistaking the passenger exit door handle for the toilet door handle and inadvertently depressurising the aircraft. The requirement necessitates the completion of the label replacement procedure as outlined in the Accomplishment Instructions of de Havilland Service Bulletin 8-11-14. This regulation aligns with Transport Canada's AD CF-87-07R1, ensuring consistent safety standards across jurisdictions. Compliance with this directive is mandatory, and the label replacement must be completed before 30 November 1995, unless it has already been accomplished. This regulation underscores the importance of clear and unambiguous labelling to prevent operational errors that could compromise flight safety.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39, Section 105, includes a schedule of airworthiness directives that apply to Bombardier (Boeing Canada/De Havilland) DHC-8 Series aeroplanes. The particular directive in focus here, AD/DHC-8/42, mandates the replacement of door labels on DHC-8 aircraft across all series, with serial numbers ranging from 3 to 402. This directive requires operators to follow the label replacement procedure outlined in de Havilland Service Bulletin 8-11-14. The directive notes a reference to Transport Canada AD CF-87-07R1, indicating alignment or cross-reference with other regulatory bodies on the matter. Compliance with this directive is mandatory, and any affected aircraft must complete the label replacement before 30 November 1995, unless the procedure has already been accomplished. The primary obligation imposed by this directive is for aircraft operators to ensure that the door labels on the specified DHC-8 aircraft are replaced according to the procedure detailed in the referenced service bulletin. This involves a direct and specific action to correct a safety issue that has arisen from passengers confusing the door handles. The directive is clear in its requirement that the replacement must be carried out in accordance with the provided instructions to avoid any potential safety hazards. The directive further specifies that this compliance must be achieved before a particular deadline, ensuring a timely resolution of the identified issue. Failure to comply with the requirements set out in this airworthiness directive could result in serious safety implications. Although the specific legislative instrument does not detail the penalties for non-compliance, it is generally understood that non-compliance with airworthiness directives can lead to significant consequences under the Civil Aviation Act 1988 and other related legislation. The consequences could range from operational restrictions on the aircraft to more severe penalties including fines and potential grounding of the aircraft. These outcomes are aimed at ensuring that all operators adhere to the directive to maintain the highest safety standards in civil aviation.