COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Pratt and Whitney Turbine Engines - JT9D Series
AD/JT9D/13
Amdt 3
Low Pressure Turbine Anti-Rotation Pins 5/88
TX
Applicability: JT9D-3A,-7,-7H,-7AH,-7A,-7A(SP),-7F,-7J,-20 engines not fully incorporating PWA SB 5292.
Requirement: 1. Inspect pre-SB 5292, low pressure turbine vane anti-rotation pins in accordance with the requirements of PWA SB 5735, or as agreed by the Secretary.
2. Replace pre-SB 5292, low pressure turbine vane anti-rotation pins in accordance with the requirements of PWA SB 5292 Rev. 4.
Compliance: 1. In accordance with the Requirement document or as agreed by the Secretary.
2. At the next removal of the low pressure turbine shaft from the low pressure turbine case and vane assembly but not later than 31 December 1989.
Background: This Directive has been amended to include in the applicable engine models, all JT9D models listed in PWA SB 5292 and 5735. The amendment includes the JT9D-3A model previously removed from the Australian Register.
Overview
The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, aim to regulate and ensure the safety and efficiency of civil aviation within Australia. Specifically, Part 39 of these regulations outlines the requirements for airworthiness directives, with Schedule 106 detailing directives related to Pratt and Whitney Turbine Engines, including the JT9D Series. This legislative instrument, F2006B11006, addresses the gap in safety protocols for specific turbine engines by requiring inspections and replacements of certain components to ensure compliance with safety standards. The directive AD/JT9D/13Amdt 3, concerning low pressure turbine anti-rotation pins, was introduced to address safety issues identified in certain JT9D engine models. The policy objective is to mandate specific maintenance actions to prevent potential failures that could compromise the safety of air travel. Compliance with these directives is essential to ensure that engines meet the necessary safety standards and to mitigate any risks associated with the identified components.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39, apply to various aviation activities within Australia, ensuring that all aviation operations meet certain safety standards. Under this legislation, the Airworthiness Directives (AD) mandate compliance with safety measures for specific aircraft components and systems, including Pratt and Whitney Turbine Engines, particularly the JT9D series. These directives apply to specific models of JT9D engines not fully incorporating PWA SB 5292, which must comply with the stipulated inspection and replacement requirements for low pressure turbine anti-rotation pins. The regulations establish clear timelines and procedures for compliance, with directives requiring inspections and replacements to be conducted according to specified service bulletins or as agreed upon by the Secretary. This directive extends its application nationally, ensuring that all applicable aircraft and operators within Australia adhere to the safety standards outlined in the AD. The scope of this legislation is comprehensive, covering all relevant entities and components within the specified engine models, with no explicit exclusions or thresholds mentioned in the text. The regulations allow for adjustments and extensions through subordinate instruments, providing flexibility in enforcement and compliance.
Key Provisions
The key operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 106, focus on the requirements for Pratt and Whitney JT9D series turbine engines. Section 1 outlines the applicability of the Airworthiness Directive (AD/JT9D/13) which targets JT9D-3A, -7, -7H, -7AH, -7A, -7A(SP), -7F, -7J, and -20 engines that have not fully incorporated Pratt and Whitney Aircraft (PWA) Service Bulletin 5292. Section 2 details the specific requirements: the inspection of pre-SB 5292 low pressure turbine vane anti-rotation pins as per PWA SB 5735 or as agreed by the Secretary, and the replacement of these pins as per PWA SB 5292 Revision 4. The compliance section, Section 3, mandates that inspections and replacements must be carried out in accordance with the specified requirements or as agreed upon by the Secretary and must be completed at the next removal of the low pressure turbine shaft from the low pressure turbine case and vane assembly, but no later than 31 December 1989.
The obligations imposed by these sections on the relevant parties or entities are quite clear. Operators and owners of the specified JT9D engines must ensure that inspections and replacements of the low pressure turbine vane anti-rotation pins are performed as outlined. This includes adhering to the requirements set forth in PWA SB 5735 for inspections and PWA SB 5292 Revision 4 for replacements. The compliance deadlines must be strictly observed, with the work completed by the specified date. The requirement that the work must be done at the next removal of the low pressure turbine shaft places an emphasis on timely and thorough maintenance schedules.
The Civil Aviation Regulations 1998 provide for various civil and criminal consequences for non-compliance with the Airworthiness Directives. Failure to adhere to the requirements for inspections and replacements can result in significant penalties. Civil penalties may include fines, while criminal penalties could involve imprisonment, reflecting the serious nature of ensuring aviation safety. The exact penalties are not detailed within the text but are governed by the broader provisions of the Civil Aviation Act 1988 and associated regulations, which can include substantial fines and imprisonment for serious breaches of safety directives.