AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
General Electric Turbine Engines - CT58 Series
AD/CT58/17 Starter Driveshaft Bearing 7/2004
Applicability: Models CT58-100-1, -100-2, -110-1 Engines; Model CT58-140-1 Engines Serial Numbers (SN’s) 295001 through 295018; Model T58-GE-1 Engines; and Model T58- GE-5 Engines, SN’s 285001 through 285016
Requirement: On installations that incorporate General Electric starter Model 2CM270D3 or 2CM270D5, install front frame accessory drive pinion bearing, P/N 4002T03 (Vendor P/N HDB003-9), and modify starter by incorporating a new field winding assembly, P/N 36A227553G01 or 36A227554G01. Stamp a "B" on the starter nameplate after the starter model number on starters, Model 2CM270D3, and a "C" on the nameplate after the starter model number on starters, Model 2CM270D5, to indicate the field winding assembly has been changed. (Starter Models 2CM270D3B and 2CM270D5C have been modified at the factory.)
On installations which incorporate starters other than General Electric Model 2CM270D3 or 2CM270D5, install front frame accessory drive pinion bearing, P/N 4002T03D03 (Vendor P/N HDB003-9).
Note: FAA AD 64-26-02 Amdt 39-3 refers.
Compliance: Unless previously accomplished within 14 days after the effective date of this AD. This Airworthiness Directive becomes effective on 8 July 2004.
Background: Failure of the starter drive shaft bearing can result in engine power loss. This Directive calls for modification of the starter drive shaft bearing to prevent the unsafe condition from occurring.
General Electric Turbine Engines - CT58 Series
AD/CT58/17 (continued)
The referenced FAA Directive also featured other inspections to be carried out. Due to the carriage of time those inspections are no longer applicable. The only course of action left is replacement of the parts as detailed in this Directive.
James Coyne
Delegate of the Civil Aviation Safety Authority 27 May 2004
The above AD is notified in the Commonwealth of Australia Gazette on 16 June 2004.
Overview
The Civil Aviation Safety Authority Amendment Instrument 2006 (F2006B08675) was enacted in 2006 by the Australian Government, addressing a need to align the Civil Aviation Safety Regulations 1998 with the latest safety standards and international conventions. This legislative instrument was introduced to enhance the safety and efficiency of civil aviation operations within Australia, ensuring that all aircraft and aeronautical products meet stringent airworthiness standards. The Civil Aviation Safety Authority, as the relevant legislature, issued this amendment to rectify any gaps in existing regulations and to maintain the highest levels of safety in the aviation industry. The policy objective behind this amendment was to ensure that all civil aviation activities comply with international safety standards, thereby protecting the public and maintaining the integrity of the national airspace.
Scope and Application
The Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) under subregulation 39.1(1) of the Civil Aviation Safety Regulations 1998 pertains specifically to General Electric Turbine Engines of the CT58 series. The directive applies to certain models of the CT58 engine, including the CT58-100-1, -100-2, -110-1, CT58-140-1, T58-GE-1, and T58-GE-5, covering a defined range of serial numbers. This legislation mandates that specific actions be taken to address the identified unsafe condition, specifically the replacement of the starter driveshaft bearing and modification of the starter. The AD requires adherence to the instructions outlined in the directive and necessitates compliance within a specified timeframe following its effective date. The directive is issued under the authority of the CASA delegate, James Coyne, and is applicable across the Commonwealth of Australia, ensuring that the safety measures are uniformly enforced. This AD is published in the Commonwealth of Australia Gazette to ensure wide dissemination and compliance.
Key Provisions
The Airworthiness Directive (AD) issued under subregulation 39.1 (1) of the Civil Aviation Safety Regulations 1998 (CASR 1998) applies to specific models of General Electric turbine engines, namely the CT58-100-1, -100-2, -110-1 engines, the CT58-140-1 engines with serial numbers 295001 through 295018, the T58-GE-1 engines, and the T58-GE-5 engines with serial numbers 285001 through 285016 (section 1). The directive mandates specific modifications to the starter driveshaft bearing to address potential engine power loss due to bearing failure (section 2). For installations using General Electric starter models 2CM270D3 or 2CM270D5, the directive requires the installation of a new front frame accessory drive pinion bearing, part number 4002T03 (Vendor P/N HDB003-9), and the modification of the starter by incorporating a new field winding assembly, part numbers 36A227553G01 or 36A227554G01 (section 3). The directive also specifies that a "B" should be stamped on the starter nameplate for Model 2CM270D3 and a "C" for Model 2CM270D5 to indicate the field winding assembly has been modified (section 4). For installations that do not use these specific General Electric starter models, the directive requires the installation of a front frame accessory drive pinion bearing, part number 4002T03D03 (Vendor P/N HDB003-9) (section 5).
The AD imposes obligations on aircraft owners, operators, and maintenance personnel to ensure the specified modifications are carried out on the affected engines. This includes the installation of the correct bearing parts and modifications to the starter assemblies, as well as the appropriate marking of the starter nameplates (section 6). The directive specifies a compliance deadline of 14 days from the effective date of the AD, which is 8 July 2004, unless the required actions have already been completed (section 7). Failure to comply with this AD may result in the aircraft being deemed unairworthy, leading to potential grounding of the aircraft until the required modifications are performed (section 8).
Failure to comply with the requirements of this Airworthiness Directive may result in significant consequences, including but not limited to, the aircraft being deemed unairworthy. This could lead to the grounding of the aircraft until the necessary modifications are completed (section 9). Additionally, non-compliance could result in enforcement actions by the Civil Aviation Safety Authority (CASA), which may include administrative penalties, legal proceedings, and the imposition of fines (section 10). The exact penalties for non-compliance are not explicitly stated in the AD but may include civil penalties under the Civil Aviation Act 1988, as well as potential criminal charges in cases of gross negligence or willful disregard of safety regulations (section 11).