COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
DH 104 (Dove) Series Aeroplanes
AD/DH 104/34
Amdt 2
Applicability: All models.
Centre Section Main Spar Top and Bottom Boom Joint - Inspection
9/77
Requirement: 1. Inspect the Centre Section Main Spar Top boom in accordance with Hawker Siddeley TNS CT(104) No. 237 Appendix 1, or in accordance with a technique approved by the Secretary. Technique ATG/NDI/US/1 constitutes such an approved technique.
2. Inspect the Centre Section Main Spar Bottom boom of those aircraft without Modification 779 embodied, in accordance with Hawker Siddeley TNS CT(104) No. 238 appendix 1, or in accordance with a technique approved by the Secretary. Technique ATG/NDI/US/1 constitutes such an approved technique.
Note: Where crack indications are found the Airworthiness Branch, Central Office, is to be notified before further flight.
Compliance: Inspect at intervals in accordance with Hawker Siddeley TNS CT(104) Nos. 237 and 238 Issue 2 as applicable.
Overview
The Civil Aviation Regulations 1998, as part of the broader framework governing civil aviation in Australia, were enacted to ensure the safety and efficiency of air travel within the country. Among these regulations is the PART 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, which specifically addresses the maintenance and inspection requirements for certain aircraft models to maintain their airworthiness. This legislative instrument aims to address the problem of ensuring that aircraft are maintained to the highest safety standards, particularly for the DH 104 (Dove) Series Aeroplanes. The enactment of this regulation by the Australian Government through the Civil Aviation Safety Authority is intended to provide clear guidelines for the inspection and maintenance of specific components, such as the Centre Section Main Spar Top and Bottom boom joints, to prevent potential structural failures and ensure the safety of passengers and crew. The overarching policy objective is to mandate rigorous inspection protocols and procedures to maintain the airworthiness of these aircraft.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertain to airworthiness directives issued by the Civil Aviation Safety Authority (CASA) and apply to all types and models of aircraft registered in Australia, including the DH 104 (Dove) Series Aeroplanes. The regulations mandate that all aircraft owners and operators must comply with the specified airworthiness directives, including the inspection of the Centre Section Main Spar Top and Bottom boom joints as outlined in AD/DH 104/34 Amendment 2. The geographic reach of these regulations is national, applying to all aircraft operating within Australia's airspace. There are no stated exclusions or exemptions within the directive, meaning all DH 104 series aeroplanes must adhere to the inspection requirements regardless of the specific circumstances of operation or ownership. CASA retains the authority to approve alternative inspection techniques, thus extending the application of these regulations through subordinate instruments. Failure to comply with these airworthiness directives may result in the grounding of affected aircraft until the required inspections are satisfactorily completed.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, details the Civil Aviation Safety Authority's schedule of airworthiness directives for the DH 104 (Dove) series aeroplanes, with a focus on AD/DH 104/34 Amendment 2. This amendment applies to all models of the Dove series aeroplanes and mandates specific inspections for the Centre Section Main Spar Top and Bottom boom joints. According to section 1, operators must inspect the Centre Section Main Spar Top boom using Hawker Siddeley TNS CT(104) No. 237 Appendix 1, or an approved technique such as ATG/NDI/US/1. Similarly, section 2 requires inspecting the Centre Section Main Spar Bottom boom for aircraft without Modification 779 using Hawker Siddeley TNS CT(104) No. 238 Appendix 1 or an approved technique. If any cracks are detected, the Airworthiness Branch, Central Office, must be notified before any further flight.
The obligations under this directive are clear and specific. Operators of the Dove series aeroplanes must adhere to the outlined inspection procedures and intervals as stipulated in Hawker Siddeley TNS CT(104) Nos. 237 and 238 Issue 2. This ensures the maintenance of airworthiness standards and safety. Failure to comply with these inspection requirements could potentially compromise the structural integrity of the aircraft, leading to unsafe conditions during flight.
In terms of consequences for non-compliance, the regulations do not explicitly state civil or criminal penalties within the provided text. However, non-compliance with airworthiness directives generally carries significant risks, including potential grounding of the aircraft, enforcement actions by the Civil Aviation Safety Authority, and possible legal ramifications if such non-compliance results in an accident or incident. It is essential for operators to meticulously follow the mandated inspection procedures to avoid any adverse outcomes.