AD/F50/31 - Accessory Compartment Cable Covers

Overview

The Civil Aviation Regulations 1998, as amended through legislative instruments such as F2006B09858, were enacted to address the need for comprehensive safety standards within Australia’s civil aviation sector. This legislation was introduced by the Australian Parliament to ensure the safety of air travel within the country. The specific issue addressed by the Airworthiness Directives, such as AD/F50/31 concerning the Fokker F50 (F27 Mk 50) Series Aeroplanes, involves the potential for water to drain from accessory compartment cable covers, subsequently splashing onto control cables and potentially freezing, which could lead to control difficulties. The policy objective of these regulations is to mandate compliance with safety measures to prevent such incidents, ensuring the airworthiness of aircraft and safeguarding passengers and crew. The Civil Aviation Regulations 1998, overseen by the Civil Aviation Safety Authority, incorporate international standards and directives, such as those from the Netherlands, to maintain high safety benchmarks in Australia's aviation industry. The regulations require specific actions to be taken on particular aircraft models, such as the Fokker F50, to address identified safety issues. Compliance with these directives is mandatory, with deadlines specified to ensure timely implementation of safety measures. This legislative framework plays a crucial role in maintaining the safety and reliability of civil aviation operations in Australia.

Scope and Application

The Civil Aviation Safety Authority Schedule of Airworthiness Directives, specifically AD/F50/31 concerning the Fokker F50 (F27 Mk 50) series aeroplanes, applies to aircraft with specific serial numbers in the Fokker SB F50-27-010 configuration. The directive mandates compliance with Fokker SB F50-27-024, which aims to prevent water draining from accessory compartment cable covers from splashing onto control cables and subsequently freezing, thereby avoiding potential control difficulties. This legislation directly impacts Fokker F50 aircraft owners and operators who must ensure their aircraft meet the specified criteria and adhere to the outlined requirements to maintain airworthiness standards. The directive is a Commonwealth regulation, enforced under the Civil Aviation Regulations 1998, and is applicable to aircraft registered and operated within Australia, ensuring that the specified maintenance and operational standards are uniformly upheld across the nation.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, under the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, outlines specific safety requirements for Fokker F50 (F27 Mk 50) series aeroplanes, particularly regarding accessory compartment cable covers. This directive, AD/F50/31, applies to F27 Mk 50 aircraft with serial numbers ranging from 20103 through 20108 and 20110 through 20134, which must be in the post Fokker SB F50-27-010 configuration (Section 105). The directive mandates that the aircraft must comply with Fokker Service Bulletin F50-27-024 and notes a corresponding Netherlands Airworthiness Directive 89-99 for context. The key requirement is that any necessary action must be taken to ensure compliance with these specifications unless it has already been accomplished prior to 31 March 1990. The obligations imposed by this directive on the relevant parties, such as aircraft operators and maintenance providers, include ensuring that the accessory compartment cable covers are properly installed and maintained to prevent water from draining onto control cables, which could potentially freeze and cause control difficulties. This involves following the detailed instructions provided in Fokker Service Bulletin F50-27-024 and ensuring that the aircraft meets the specified configuration outlined in the directive. Compliance must be verified, and any non-compliance must be rectified before the stipulated deadline of 31 March 1990. Failure to comply with the provisions of AD/F50/31 may result in serious safety risks, including potential control difficulties due to frozen control cables. While the specific penalties for non-compliance are not detailed in the text provided, under the Civil Aviation Act 1988, non-compliance with airworthiness directives can lead to enforcement actions. These can include fines, suspension or revocation of aircraft certificates of airworthiness, and other regulatory penalties. The seriousness of the potential consequences underscores the importance of adhering to the requirements set out in this directive to ensure the safety and airworthiness of the Fokker F50 series aeroplanes.