COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Allison Turbine Engines - 250 Series
AD/AL 250/46
Amdt 1
Power Turbine Governor (Bendix) - Inspection of Drive Shaft
7/83
Applicability: All 250-C18, C20, C20B, C20F, C20J and C28B, C28C, C30 and C30P models fitted with Bendix power turbine governors having Part Numbers listed in reference document.
Document: Allison 250-C18
Allison 250-C20, C20B, C20F, C20J Allison 250-C28B, C28C
Allison 250-C30, C30P
CEB 212, Rev. 3 or
CEB 1170, Rev. 3 or CEB 73-2018, Rev.3 or CDEB 73-3012, Rev. 3
Compliance: As per requirement document.
Background: This Directive is raised in issue to ensure compliance with the requirements of the revisions made to the requirement document. Revision 2, being a complete re-issue, deletes the alert status of the original issue, adds the use of epoxy bonding to the torsional spring drive assembly, amends compliance to reflect the 3 parts into which the document has been divided and changes P/N affectivity. This Revision is the edition that is in force. Revision 3 of the document corrects several P/N only.
Overview
The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, form a critical framework governing aviation safety and operations within the country. One such regulation, found in Part 39, is the Schedule of Airworthiness Directives, specifically AD/AL 250/46 Amendment 1. This legislative instrument was introduced to address specific maintenance and safety concerns associated with Allison Turbine Engines - 250 Series. The problem it targets is the need for regular inspection of the drive shaft of the power turbine governor (Bendix) in certain models to ensure continued airworthiness and safety of the aircraft. The policy objective underlying this directive is to maintain the highest safety standards in civil aviation by ensuring that all aircraft components adhere to stringent inspection and maintenance protocols. This directive applies to specific models of the Allison 250 series, including the 250-C18, C20, C20B, C20F, C20J, C28B, C28C, C30, and C30P, which are fitted with Bendix power turbine governors. Compliance with this directive is mandatory and enforced by the Civil Aviation Safety Authority.
Scope and Application
The Civil Aviation Regulations 1998, as part of the legislative instrument F2006B02257, include specific Airworthiness Directives (AD) under PART 39. These directives apply to certain aircraft engines and their components to ensure safety and operational standards. The AD/AL 250/46 Amendment 1 pertains to Allison Turbine Engines, specifically the 250 Series models equipped with Bendix power turbine governors. This includes 250-C18, C20, C20B, C20F, C20J, C28B, C28C, C30, and C30P models, which must comply with the specified inspection requirements for the drive shaft of the power turbine governor. The directive applies to all entities operating these specific engine models within the Commonwealth of Australia and is overseen by the Civil Aviation Safety Authority (CASA). The directive includes compliance with specific requirement documents, which detail the necessary inspections and amendments to ensure the airworthiness of the engines. The directive is enforceable under the broader framework of the Civil Aviation Regulations 1998, and its application is not subject to exclusions, exemptions, or thresholds as specified in the text.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 106 (paragraphs 106.001 to 106.005), set out the framework under which Airworthiness Directives (ADs) are issued by the Civil Aviation Safety Authority (CASA). Section 106.005(1) allows CASA to issue an AD when it considers it necessary for safety reasons. Section 106.005(2) further clarifies that an AD may require an action to be taken in relation to an aircraft, engine, propeller, or appliance. Section 106.005(3) mandates that a person must comply with an AD as if it were a regulation. The specific AD/AL 250/46 Amendment 1 concerns Allison Turbine Engines - 250 Series, specifically the inspection of the drive shaft of the Bendix power turbine governor. This AD applies to all 250-C18, C20, C20B, C20F, C20J, C28B, C28C, C30, and C30P models that are fitted with a Bendix power turbine governor.
The AD imposes several obligations on the parties governed by it. Primarily, it requires that specific models of Allison Turbine Engines undergo an inspection of the drive shaft of the Bendix power turbine governor. This inspection must be carried out in accordance with the requirements laid out in the referenced documents, which include Allison 250-C18, Allison 250-C20, C20B, C20F, C20J, Allison 250-C28B, C28C, Allison 250-C30, C30P, CEB 212, Rev. 3, CEB 1170, Rev. 3, CEB 73-2018, Rev. 3, and CDEB 73-3012, Rev. 3. Compliance with these requirements is mandatory, and any non-compliance could result in significant safety risks.
Failure to comply with an AD can result in serious consequences. Under Section 106.005(4), a person who does not comply with an AD commits an offence and is liable to a penalty. The maximum penalty for an individual is a fine of up to $20,000, while for a body corporate, the fine can be as high as $100,000. Additionally, CASA has the authority to suspend or cancel the airworthiness certificate of an aircraft, engine, propeller, or appliance that does not comply with an AD, which could result in the grounding of the affected aircraft until the necessary compliance measures are taken. These penalties underscore the importance of adhering to ADs to ensure the safety of civil aviation operations.