AD/HS 125/49 Amdt 1 - Flap Outer Hinge Arm Assembly

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105, was enacted to establish a regulatory framework for civil aviation safety in Australia, addressing gaps in aircraft maintenance and operational standards. This regulatory instrument is part of a broader legislative effort overseen by the Australian Government, with the overarching policy objective of ensuring the safety and efficiency of the national airspace. AD/HS 125/49 Amendment 1, introduced under this Act, targets British Aerospace BAe 125 series aeroplanes, mandating inspections of the flap outer hinge arm assembly to prevent potential safety hazards. This directive, applicable to all HS/DH/BH 125 series aeroplanes except those with modification 252670 incorporated, requires an initial inspection before further flight and subsequent inspections at intervals not exceeding three months, as outlined in British Aerospace 125 Service Bulletin No 57-54, Revision 1. The aim is to ensure ongoing airworthiness and compliance with safety standards. The Civil Aviation Regulations 1998, managed by the Australian Government, set forth comprehensive requirements for the certification, operation, and maintenance of aircraft within Australia's jurisdiction. The specific directive AD/HS 125/49 Amendment 1, introduced to address identified risks in the BAe 125 series aeroplanes, mandates thorough inspections of the flap outer hinge arm assembly to maintain structural integrity and flight safety. This regulatory action, which supersedes previous bulletins, underscores the commitment to continuous safety enhancements and operational reliability in civil aviation. The requirement for inspections before further flight and at regular intervals aims to proactively identify and rectify potential issues, thereby safeguarding both the aircraft and those on board.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 – 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, governs the airworthiness of various aircraft in Australia. This legislation mandates specific safety protocols and inspections for certain aircraft types, including the British Aerospace BAe 125 Series aeroplanes. The particular directive AD/HS 125/49 Amendment 1 pertains to the flap outer hinge arm assembly, applicable to all HS/DH/BH 125 series aeroplanes except those that have already incorporated modification 252670. Compliance with this directive requires an initial inspection before further flight if not already performed, followed by inspections at intervals not exceeding three months, as detailed in British Aerospace 125 Service Bulletin No 57-54, Revision 1. This regulation ensures the continuous maintenance of airworthiness standards for these specific aircraft, enhancing flight safety and operational reliability. The directive’s applicability is overseen by the Civil Aviation Safety Authority, with any additional requirements or modifications potentially extended through subordinate instruments.

Key Provisions

The Civil Aviation Regulations 1998, particularly in Part 39 under section 105, establish the schedule of airworthiness directives which include specific amendments and requirements for maintaining the safety of aircraft, such as the British Aerospace BAe 125 Series Aeroplanes. Section AD/HS 125/49 Amendment 1 focuses on the flap outer hinge arm assembly, applicable to all HS/DH/BH 125 series aeroplanes except those with modification 252670 incorporated. The compliance requirements mandate an initial inspection before further flight, unless already completed, and subsequent inspections at intervals not exceeding three months. This directive is supported by British Aerospace 125 Service Bulletin No 57-54, Revision 1, which supersedes the previous alert bulletin and extends the requirement to additional serial numbered aircraft. The obligations imposed by this airworthiness directive are stringent, ensuring that the flap outer hinge arm assembly is inspected and maintained to prevent any potential safety hazards. Operators of the specified BAe 125 series aeroplanes must adhere to these inspection intervals, which are critical for maintaining the structural integrity of the aircraft. Failure to comply with these inspection requirements could result in significant safety risks, potentially compromising the airworthiness of the aircraft and the safety of all onboard. In terms of enforcement, breaches of the airworthiness directives can lead to serious consequences. The Civil Aviation Regulations 1298 impose penalties for non-compliance, which can include substantial fines and potential criminal charges. The exact penalties may vary depending on the severity of the breach and the discretion of the court. Operators found in breach of these requirements risk not only financial penalties but also the grounding of their aircraft until the necessary inspections are satisfactorily completed. Such enforcement actions underscore the importance of adhering to the stipulated inspection intervals and maintaining the required standards of airworthiness.