AD/DH114/1 - Aerial Weak Link - Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, are a comprehensive set of rules governing civil aviation safety within Australia. One specific regulation within this body of legislation is the Airworthiness Directive AD/DH114/1, which pertains to the modification of the aerial weak link in DH114 (Heron) Series aeroplanes. This regulation was introduced to address the need for specific safety modifications in these aircraft, ensuring compliance with airworthiness standards. The directive applies to all DH114 Series aeroplanes and mandates compliance with either DH Heron Modification Number 57 or the Australian National Standard 105.1.14.17.5.1 before a specified date, in this case, before 1 June 1953. The overarching policy objective of these regulations is to maintain and enhance the safety standards of civil aviation in Australia, protecting both the flying public and aviation personnel.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, addresses the safety of aircraft through the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives. This regulation applies to all Series 1 DH114 (Heron) aeroplanes, which includes aircraft documented as DH Heron Modification No. 57 or those covered by the Australian National Standard 105.1.14.17.5.1. These directives are mandatory for compliance before 1 June 1953, ensuring that these aircraft meet specified safety standards. The regulation encompasses entities and individuals involved in the operation, maintenance, and modification of these aeroplanes, focusing on ensuring airworthiness and safety across the aviation industry. The scope of this regulation is nationwide, extending across the Commonwealth of Australia, and it is enforced through CASA, ensuring compliance through national standards. While the regulation provides detailed requirements, it does not specify exclusions or exemptions beyond the scope of the aeroplanes and modifications outlined. Further application and enforcement may be detailed in subordinate instruments or additional CASA directives.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, includes the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, which governs the compliance and safety standards for aircraft operating in Australia. One such directive is AD/DH114/1, which pertains to the DH114 (Heron) series aeroplanes, detailing modifications required to an aerial weak link (Section 1). This directive applies to all Series 1 Heron aeroplanes and must be adhered to as per either the DH Heron Modification No. 57 or ANO 105.1.14.17.5.1 (Section 1). Compliance with these modifications is mandatory for any aircraft that were in service before 1 June 1953 (Section 1). The obligations imposed by this directive are clear and specific. Operators of DH114 (Heron) series aeroplanes must ensure that the aerial weak link is modified according to the specifications outlined in the directive. This involves making certain that any modifications are performed by authorised personnel and that the aircraft is maintained in a manner that complies with these safety directives (Section 1). Ensuring compliance involves thorough documentation and maintenance records, as well as periodic inspections to verify that the modifications have been correctly and effectively implemented (Section 1). Failure to comply with the requirements set out in AD/DH114/1 may result in significant consequences. The Civil Aviation Regulations 1998 include provisions for both civil and criminal penalties for non-compliance. Civil penalties can include substantial fines, while criminal penalties may involve imprisonment depending on the severity and frequency of the breach (Section 1). The exact penalties are not specified in the directive but are outlined in other sections of the Civil Aviation Regulations 1998. It is imperative for operators to adhere strictly to these directives to avoid legal repercussions and ensure the safety and airworthiness of their aircraft (Section 1).