AD/DH 104/17 Amdt 2 - Aileron Lever - 4WA315 - Inspection and Modification

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of the Commonwealth of Australia, form a crucial part of the legislative framework governing aviation safety in Australia. This legislation aims to ensure that civil aviation operations are conducted in a manner that minimises the risk of accidents and enhances the safety of air travel. Part 39 of these regulations, which includes the Airworthiness Directives, specifically targets the maintenance and operation of aircraft to ensure that they meet the required safety standards. The directive AD/DH 104/17 Amendment 2, pertaining to the Hawker Siddeley Dove series aeroplanes, addresses a specific safety concern related to the aileron lever, mandating inspections and modifications to ensure compliance and reduce potential risks associated with the identified issue. The policy objective is to maintain and improve airworthiness standards, thereby protecting the public and enhancing the overall safety of civil aviation activities.

Scope and Application

The Civil Aviation Regulations 1998, specifically under Part 39 - 105, mandate that the Airworthiness Directives (AD) apply to all DH 104 (Dove) series aeroplanes except those that have been modified according to Modification 967. This regulation is pertinent to the Hawker Siddeley TNS CT(104) No. 151 Issue 4 document, which outlines the necessary compliance measures. The directive requires that aileron levers, identified as 4WA315, be inspected at intervals not exceeding 50 hours of time in service until such modifications are made. The modification itself must be completed before 1 June 1970. These regulations extend across the Commonwealth of Australia, enforcing standards to ensure the continued airworthiness of the specified aircraft models.

Key Provisions

The Civil Aviation Regulations 1998, specifically in Part 39, Section 105 (AD/DH 104/17 Amendment 2), mandate that all Dove series aeroplanes, excluding those with Modification 967, undergo a thorough inspection of the aileron lever (part number 4WA315) at intervals not exceeding 50 hours of time in service (Section 1/70). This inspection is crucial for ensuring the continued airworthiness of the aircraft. Furthermore, these aeroplanes must be modified before 1 June 1970 to comply with the regulations outlined in Hawker Siddeley TNS CT(104) No. 151 Issue 4. These regulations impose clear obligations on the operators and maintainers of Dove series aeroplanes. They are required to adhere strictly to the inspection intervals specified and ensure that any identified issues are rectified promptly. The compliance with these directives is essential for maintaining the safety standards set forth by the Civil Aviation Safety Authority (CASA). The documentation provided by Hawker Siddeley must be closely followed to ensure that the modifications are carried out correctly and effectively. Failure to comply with these provisions can lead to serious consequences. While the specific penalties for non-compliance are not detailed in the referenced section, it is understood that breaches of airworthiness directives can result in significant legal repercussions. Such breaches may include civil penalties, potential criminal charges, and actions by CASA that could range from fines to grounding of the aircraft. The severity of the penalties reflects the critical importance of adhering to these safety directives to ensure the safety of all those involved in air travel.