AD/PA-31/119 - Aileron Control System

Overview

The Civil Aviation Regulations 1998, as amended, include provisions within Part 39, specifically under the Civil Aviation Safety Authority’s (CASA) Schedule of Airworthiness Directives, which aim to ensure the safety of aircraft operations across Australia. This legislation was introduced to address the specific safety concern of improper connections in the aileron control systems of Piper PA-31 Series aeroplanes. The problem identified was related to reports of incorrect connections in the aileron control systems, which could potentially compromise the aircraft's flight safety. The policy objective of this directive is to mandate that the aileron balance cable and bellcrank lug of both aileron control systems be colour-coded with red enamel paint to prevent such errors. This requirement ensures that the next time the aileron cables are disconnected for any reason, the colour-coding must be applied, or by 1 April 1994, whichever comes first, thereby enhancing the safety and reliability of these aircraft. Enacted by the Commonwealth of Australia, the Civil Aviation Regulations 1998, through the CASA, address gaps in aircraft safety by issuing specific directives such as AD/PA-31/119. This directive responds to issues identified by the Federal Aviation Administration (FAA) regarding the Piper PA-31 Series aeroplanes. The regulation requires the colour-coding of critical components to prevent misconnections, thereby mitigating potential hazards. The directive reflects a collaborative effort with the FAA to ensure the highest safety standards are met, ultimately protecting the public and maintaining the integrity of civil aviation in Australia.

Scope and Application

The Civil Aviation Regulations 1998, under PART 39 - 105, addresses the Civil Aviation Safety Authority's (CASA) Schedule of Airworthiness Directives, specifically targeting the Piper PA-31 Series aeroplanes. The regulations mandate that the aileron control system of these aircraft must be colour-coded with red enamel paint to ensure safety and prevent improper connections, as highlighted by the Federal Aviation Administration's AD 92-27-05 Amdt 39-8438. Compliance with this directive is required either the next time the aileron cables are disconnected for any reason or before 1 April 1994, whichever comes first. This regulation applies nationally across Australia and is enforced by CASA, which oversees all aspects of civil aviation safety within the country. No specific exclusions or thresholds are mentioned within this directive, but the scope is limited to the specified model of aeroplanes and their aileron control systems.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39, section 105, addresses airworthiness directives for the Piper PA-31 series aeroplanes. In this case, AD/PA-31/119 pertains to the aileron control system (section 4/93). The directive requires that the aileron balance cable and the bellcrank lug of both aileron control systems be colour-coded with red enamel paint as illustrated in Figure 1 of the directive. This measure is a response to reports of improper connections of the aileron control systems, ensuring that these critical components are easily identifiable and correctly connected to prevent accidents. The regulations impose obligations on aircraft operators and maintenance personnel to adhere to these airworthiness directives. The key requirement is to colour-code the specified components with red enamel paint, which must be done either the next time the aileron cables are disconnected for any reason or before 1 April 1994, whichever comes first (section 4/93). This directive ensures that the modifications are carried out in a timely and methodical manner, prioritising safety and preventing any potential risks associated with improper connections of the aileron control systems. Failure to comply with these airworthiness directives can result in serious consequences. Although the specific penalties for non-compliance are not detailed within the text, it is understood that breaches of airworthiness directives under the Civil Aviation Regulations 1998 can lead to significant civil or criminal penalties. Non-compliance can result in fines, suspension or revocation of aircraft certificates, and potential criminal charges for those responsible. The severity of the penalties reflects the critical nature of ensuring that aircraft meet the required safety standards to protect passengers, crew, and the general public.