COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Cessna 550 (Citation II) Series Aeroplanes
AD/CESSNA 550/11 TKS Proportioning Unit Connections 5/86
Applicability: Model S550 unit numbers - 0001 through - 0048, -0051 through - 0075, and - 0077 and - 0079.
Requirement: Action in accordance with Cessna Citation Alert Service Letter SLAS 550-30-05. Compliance: Before issue of a certificate of airworthiness.
Background: The manufacturer has identified the possible incorrect installation of TKS proportioning unit plumbing.
Overview
The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), aim to ensure the safety of aviation operations in Australia. A specific legislative instrument under this regulation, F2006B08416, addresses the applicability and requirements for the Cessna 550 (Citation II) series aeroplanes regarding the TKS Proportioning Unit Connections. This instrument was introduced to tackle the identified issue of potential incorrect installation of TKS proportioning unit plumbing, as highlighted by the manufacturer in Cessna Citation Alert Service Letter SLAS 550-30-05. The overarching policy objective is to mandate compliance with the specified requirements before issuing a certificate of airworthiness, thereby ensuring the safety and reliability of the aircraft involved.
Enacted by the Commonwealth of Australia, this legislation operates within the broader regulatory framework of the Civil Aviation Regulations 1998. The specific aim is to enforce adherence to the prescribed maintenance and inspection protocols for the affected Cessna 550 aeroplanes, ultimately contributing to the broader goal of maintaining high safety standards in the Australian aviation industry.
Scope and Application
The Civil Aviation Regulations 1998, under Part 39 - 105, apply to all entities and persons involved in the operation and maintenance of the specified Cessna 550 (Citation II) series aeroplanes. These regulations are intended to ensure the airworthiness of aircraft operating within Australia, thereby maintaining high safety standards in the aviation industry. Specifically, the Airworthiness Directive AD/CESSNA 550/11 pertains to aircraft with unit numbers ranging from 0001 through 0048, 0051 through 0075, and 0077 and 0079. The directive mandates compliance with the requirements set out in Cessna Citation Alert Service Letter SLAS 550-30-05, focusing on the correct installation of the TKS proportioning unit plumbing to prevent potential safety issues. Compliance with this directive must be achieved before a certificate of airworthiness is issued, ensuring that affected aircraft meet the necessary safety standards to operate legally within Australian airspace.
Key Provisions
The Civil Aviation Regulations 1998, particularly in Part 39 - 105, mandates specific actions for certain Cessna 550 (Citation II) Series aeroplanes to ensure their airworthiness. Section 39-105 (AD/CESSNA 550/11) outlines the requirements for the TKS (Thiokol-Kel-Glo) Proportioning Unit Connections, which are critical for the proper operation of the aircraft's anti-icing system. The regulation applies to model S550 units numbered from 0001 through 0048, 0051 through 0075, and 0077 and 0079 (paragraph 5/86). The key requirement is that these aircraft must comply with the Cessna Citation Alert Service Letter SLAS 550-30-05, which provides detailed instructions on the correct installation and inspection of the TKS Proportioning Unit connections. This compliance must be achieved before the issue of a certificate of airworthiness.
The obligations imposed by these regulations are stringent and clear. Aircraft operators must ensure that their aircraft meet the specific requirements outlined in the SLAS 550-30-05. This includes conducting thorough inspections and, if necessary, making adjustments to the TKS Proportioning Unit connections to rectify any incorrect installations. The responsibility for compliance lies with the aircraft owner or operator, who must ensure that the necessary actions are taken and documented to meet the regulatory standards. These actions must be performed by appropriately certified personnel to guarantee that the airworthiness certificate can be issued without any safety concerns.
Failure to comply with the provisions outlined in the Civil Aviation Regulations 1998, specifically regarding the TKS Proportioning Unit connections, can result in serious consequences. The Act does not explicitly state the penalties for non-compliance, but it is implied that any breach of these safety directives could lead to the refusal of a certificate of airworthiness, rendering the aircraft unable to legally operate. Additionally, there could be potential civil or criminal liability for any accidents or incidents that occur due to non-compliance. Although the exact penalties are not specified in the provided text, they could range from fines to more severe criminal charges depending on the nature and impact of the non-compliance.