Overview

The Civil Aviation Regulations 1998, amended by F2006B11029 in 2006, introduced a legislative instrument to address safety concerns within civil aviation, particularly targeting the maintenance and inspection of aircraft and aeronautical products. This regulation was enacted by the Parliament of the Commonwealth of Australia and serves to maintain and enhance airworthiness standards, ensuring that aircraft and aeronautical products meet safety requirements to prevent accidents and incidents. The overarching policy objective of these regulations is to safeguard the public by ensuring that all aspects of civil aviation, from aircraft design to maintenance, comply with stringent safety standards. In the context of Pratt and Whitney JT9D series engines, the Airworthiness Directive AD/JT9D/36 mandates specific inspection actions for the LPT 5th stage disc, as outlined in FAA AD 2002-07-04. The directive was issued by a delegate of the Civil Aviation Safety Authority to rectify incomplete blend repairs that could lead to uncontained engine failure. This action is intended to mitigate the risk of such failures, thereby enhancing overall aviation safety. The directive became effective on 11 July 2002, and it was notified in the Commonwealth of Australia Gazette on 19 June 2002.

Scope and Application

This Airworthiness Directive issued by the Civil Aviation Safety Authority (CASA) applies specifically to Pratt and Whitney JT9D series turbine engines as defined in FAA AD 2002-07-04. This regulation mandates specific action, as outlined in FAA AD 2002-07-04, concerning inspections on the LPT 5th stage disc to prevent uncontained engine failure, which has been identified as a potential unsafe condition. This requirement is applicable to any aircraft or aeronautical product operating within the jurisdiction of the Commonwealth of Australia, ensuring that the safety standards set forth in this directive are adhered to by all relevant entities and operators. The directive came into effect on 11 July 2002, and compliance with its provisions is mandatory for the safety and continued airworthiness of the specified engines.

Key Provisions

The main operative sections of this Airworthiness Directive (AD) are the applicability, requirement, and compliance sections. The applicability section (paragraph a) specifies the Pratt and Whitney JT9D series engines as mentioned in FAA AD 2002-07-04. The requirement section (paragraph b) mandates that the action specified in FAA AD 2002-07-04 must be taken in relation to these engines. The compliance section (paragraph c) details that this directive becomes effective on 11 July 2002. The requirement section further notes that the action must be performed in accordance with the instructions set out in FAA AD 2002-07-04 and references FAA AD 2002-07-04 Amendment 39-12698. This directive is aimed at addressing the issue of incomplete blend repairs on the LPT 5th stage disc, which has resulted in uncontained engine failures. The AD imposes specific obligations on the parties or entities it governs. These include ensuring that Pratt and Whitney JT9D series engines, as identified in FAA AD 2002-07-04, are inspected and maintained according to the requirements of FAA AD 2002-07-04. This involves performing the specified action to prevent uncontained engine failures. The directive specifies that these obligations must be met by the effective date of 11 July 2002, as detailed in the compliance section. It is imperative that the relevant parties follow these requirements to maintain the airworthiness of the engines and ensure compliance with safety standards. Failure to comply with the AD can lead to significant consequences. While the specific civil or criminal penalties are not detailed within this particular legislative instrument, non-compliance with airworthiness directives generally can result in severe repercussions. This may include fines, suspension or revocation of airworthiness certificates, and potential criminal charges in cases of gross negligence or willful disregard of safety regulations. The Civil Aviation Safety Authority (CASA) has the authority to enforce these provisions, and the penalties for non-compliance can be substantial, reflecting the critical importance of adhering to airworthiness directives to ensure aviation safety.