COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Fokker F50 (F27 Mk 50) Series Aeroplanes
AD/F50/14
Amdt 1
Outer Wing End Rib Access Panel 6/89
Applicability: S/No. 20103 to 20108 and 20110 to 20145 inclusive. Requirement: Action in accordance with Fokker SB F50-57-004. Rev. 1.
Note: RLD AD 89-017 Issue 2 refers.
Compliance: Prior to 31 May 1989.
Background: Deformation of the access panel increases the possibility of ice accretion and can cause heavy operation of the aileron during icing conditions. Amendment 1 references Revision 1 to the Requirement Document which lists additional aircraft affected, none of which are presently on the Australian Register.
Overview
The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority, form a comprehensive framework governing all aspects of civil aviation in Australia. This legislative instrument includes the Schedule of Airworthiness Directives, which play a crucial role in ensuring that aircraft are maintained to safe standards. Specifically, PART 39 - 105 addresses airworthiness directives for certain aircraft models, such as the Fokker F50 (F27 Mk 50) Series Aeroplanes. The problem this legislation was introduced to address is the potential for deformation of the outer wing end rib access panel, which can lead to ice accretion and heavy operation of the aileron in icing conditions. The policy objective of these directives is to enhance the safety and airworthiness of aircraft by mandating specific actions to rectify identified issues.
Amendment 1 to the airworthiness directive AD/F50/14 for the Fokker F50 series aims to ensure compliance with Fokker Service Bulletin F50-57-004, Revision 1. This amendment further specifies the applicability to particular serial numbers of the aircraft and requires action to be taken prior to a specified date, in this case, 31 May 1989. This legislative measure, enacted by the Australian Government through the Civil Aviation Safety Authority, is designed to mitigate risks associated with ice accretion and operational safety during adverse weather conditions.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to Fokker F50 (F27 Mk 50) series aeroplanes with serial numbers 20103 to 20108 and 20110 to 20145 inclusive. This legislation mandates compliance with Fokker Service Bulletin F50-57-004, Revision 1, which addresses the potential deformation of the outer wing end rib access panel that could lead to ice accretion and excessive aileron operation during icing conditions. The regulation was updated by Amendment 1 and references Regulatory Liaison Document AD 89-017 Issue 2. The application of these regulations is within the Commonwealth of Australia and applies to all relevant aircraft operators who must ensure adherence to the specified safety directives. There are no exclusions or exemptions outlined in the current regulations, and compliance is mandatory for the specified Fokker F50 series aircraft. Subordinate instruments may further detail implementation and enforcement of these directives.
Key Provisions
The Civil Aviation Regulations 1998, Part 39 - 105, governs the safety directives for specific aircraft, including the Fokker F50 (F27 Mk 50) Series Aeroplanes under the Airworthiness Directive AD/F50/14 Amendment 1. This directive pertains to the outer wing end rib access panel and applies to aircraft with serial numbers 20103 to 20108 and 20110 to 20145 inclusive (section 6/89). The main requirement is that these aircraft must comply with Fokker Service Bulletin F50-57-004, Revision 1, which addresses issues related to the deformation of the access panel. Such deformation can lead to increased ice accretion and heavy operation of the aileron during icing conditions, potentially compromising flight safety.
Entities and parties governed by this directive must ensure that all affected Fokker F50 aircraft comply with the specified service bulletin. This involves performing the necessary actions outlined in Fokker SB F50-57-004, Revision 1, to rectify any deformation of the outer wing end rib access panel. Compliance must be achieved prior to 31 May 1989, as stipulated by the directive. This requirement is critical to maintaining the airworthiness of the aircraft and ensuring the safety of all passengers and crew on board.
Failure to comply with the provisions of AD/F50/14 Amendment 1 could result in significant consequences. The Civil Aviation Safety Authority (CASA) may take enforcement action against any non-compliance, which could include fines, operational restrictions, or even the grounding of non-compliant aircraft. The potential penalties for not adhering to these safety directives are severe, reflecting the importance of adhering to airworthiness standards to prevent potential hazards during flight.
The directive also references RLD AD 89-017 Issue 2, which provides additional context and guidance on the requirements. While the amendment mentions that additional aircraft might be affected, none of these are currently on the Australian register. This highlights the importance of vigilance and proactive compliance, ensuring that all relevant aircraft within the specified serial numbers are inspected and maintained according to the directive’s requirements. The overarching goal is to mitigate risks associated with ice accretion and ensure the continued safety and reliability of the Fokker F50 series aeroplanes in Australian airspace.