COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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.
Rotax Piston Engines
AD/ROTAX/19 Oil Dipstick 12/2003
Applicability: The following engines fitted with oil dipstick Part Number (P/N) 965150: Rotax 912 A series engines Serial Number (S/N) up to 4,410.606 inclusive; and 912 F-series engines S/N up to 4,412.858 inclusive; and
912 S-series engines S/N up to 4,922.971 inclusive; and 914 F-series engines S/N up to 4,420.394 inclusive.
Requirement: Replace oil dipstick P/N 956150 with P/N 956151 in accordance with Bombardier Rotax Service Bulletin (S/B) SB-912-040R1 or SB-914-026R1 as required.
Note: Austrian AD No 116 refers.
Compliance: At the next oil change or prior to 1 January 2004, whichever occurs first. This Airworthiness Directive becomes effective on 27 November 2003.
Background: A slower than normal return oil flow from the crankcase to the oil tank can be experienced under certain conditions. This may result in the oil tank level going below minimum levels. Low oil levels in the oil tank can allow air to enter the oil system, causing damage to the valve mechanism and possible engine stoppage.
Jim Coyne
Delegate of the Civil Aviation Safety Authority 14 October 2003
The above AD is notified in the Commonwealth of Australia Gazette on 5 November 2003.
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Overview
The Civil Aviation Safety Regulations 1998, enacted by the Australian Government, established a comprehensive regulatory framework for ensuring the safety of civil aviation in Australia. This legislation was introduced to address the need for stringent safety measures and compliance requirements within the aviation industry. The Civil Aviation Safety Authority (CASA) is the relevant body responsible for enforcing these regulations, with a mandate to ensure that all civil aviation operations and aircraft meet the highest safety standards. The policy objective of the regulations is to protect the public and personnel involved in aviation by mitigating risks and enforcing safety directives that prevent accidents and incidents. An example of such a directive is the Airworthiness Directive (AD) issued under the regulations, which mandates specific actions to address identified safety issues, such as the replacement of oil dipsticks in certain Rotax engines to prevent potential engine damage due to insufficient oil levels.
Scope and Application
The Civil Aviation Safety Regulations 1998, specifically Part 39 - 106, pertain to the issuance of Airworthiness Directives by the Civil Aviation Safety Authority (CASA) to ensure the safety of aircraft and aeronautical products. This particular Airworthiness Directive (AD/ROTAX/19) applies to specific Rotax piston engines fitted with an oil dipstick of a particular part number, namely P/N 965150, within specified serial number ranges. This AD mandates the replacement of the oil dipstick with a new part number, P/N 956151, in accordance with designated Bombardier Rotax Service Bulletins. The directive must be followed at the next oil change or before 1 January 2004, whichever comes first, and it became effective on 27 November 2003. The directive applies to the Australian jurisdiction, as evidenced by its publication in the Commonwealth of Australia Gazette on 5 November 2003, and its enforcement is overseen by the CASA delegate, Jim Coyne, dated 14 October 2003.
Key Provisions
The Civil Aviation Safety Regulations 1998, particularly Part 39 - 106, include a specific Airworthiness Directive (AD) numbered AD/ROTAX/19, which pertains to the replacement of oil dipsticks in certain Rotax piston engines (39.1). The directive applies to Rotax 912 A, F, and S series engines, as well as 914 F-series engines, with serial numbers specified in the AD (Applicability). The directive requires that the oil dipstick Part Number 965150 be replaced with Part Number 965151 in accordance with Bombardier Rotax Service Bulletins SB-912-040R1 or SB-914-026R1, depending on the engine series (Requirement). The directive must be adhered to either at the next oil change or before 1 January 2004, whichever comes first (Compliance). This directive became effective on 27 November 2003.
Entities and parties governed by this directive are required to ensure that the specified engines are inspected for the applicable serial numbers and that the oil dipstick replacement is carried out as per the instructions provided in the Bombardier Rotax Service Bulletins. This involves taking the necessary steps to ensure that the correct part number is installed and that any associated procedures are followed accurately. The directive also references an Austrian AD No 116, indicating that this directive aligns with international safety standards.
Failure to comply with this Airworthiness Directive can result in significant safety risks, including a slower than normal return oil flow, which can lead to low oil levels in the oil tank. This condition can allow air to enter the oil system, potentially damaging the valve mechanism and leading to engine stoppage (Background). Non-compliance may also result in civil or criminal penalties as outlined in the relevant sections of the Civil Aviation Safety Regulations 1998. The exact penalties for non-compliance are not specified in the directive but may include fines and other enforcement actions under the broader regulatory framework.