COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Gates Learjet 24 & 25 Series Aeroplanes
AD/LEARJET/18 Stall Warning System - Adjustment And Test 7/79
Applicability: All models S/Nos. 24-329 to 24-357 and 25-206 to 25-278. When AAK 76-4 reduced approach speed system kit is installed, in models S/Nos. 24-100 to 24-328 and 25-003 to 25-201, 25-204 and 25-205.
Document: 1. Learjet SB No. 24/25-294; or
2. FAA AD 79-12-05, Amendment 39-3614, para. B. Compliance: Within 300 hours time in service after 30 September 1979.
Background: Deleted S/Nos. 25-202 and 25-203 from the applicability in accordance with FAA AD 79-12-05 Amendment 39-3614.
Overview
The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, aim to establish and maintain a comprehensive framework for ensuring the safety of civil aviation within Australia. This legislative instrument is part of a broader effort to uphold stringent safety standards and regulatory compliance across the aviation industry. One specific aspect of this legislation is the Schedule of Airworthiness Directives, which addresses various safety concerns and mandatory requirements for aircraft types, such as the Gates Learjet 24 & 25 Series Aeroplanes. The policy objective of these directives is to ensure that all aircraft maintain a high standard of airworthiness, thereby protecting passengers, crew, and the general public from potential hazards. The directives mandate specific actions, such as adjustments and tests for the stall warning system, to be performed within prescribed timeframes, ensuring that aircraft remain safe and compliant with regulatory standards.
Scope and Application
The Civil Aviation Regulations 1998, as incorporated in the Australian legislative instrument F2006B11134, specifically target the Gates Learjet 24 and 25 Series aeroplanes identified by certain serial numbers. The regulations mandate that all models with serial numbers ranging from 24-329 to 24-357 and 25-206 to 25-278 must adhere to the specified stall warning system adjustment and test requirements as outlined in AD/LEARJET/18. Furthermore, for models equipped with the AAK 76-4 reduced approach speed system kit, the regulation applies to those with serial numbers 24-100 to 24-328 and 25-003 to 25-201, 25-204, and 25-205. This regulation is not applicable to the serial numbers 25-202 and 25-203, as per the amendments referenced in FAA AD 79-12-05 Amendment 39-3614. Compliance with these directives must be achieved within 300 hours of the aeroplanes' time in service after 30 September 1979, ensuring adherence to the stipulated safety measures.
Key Provisions
The Civil Aviation Regulations 1998, particularly PART 39 - 105, address the airworthiness directives for Gates Learjet 24 & 25 Series Aeroplanes. Specifically, AD/LEARJET/18 pertains to the stall warning system, focusing on its adjustment and testing. This directive applies to all Gates Learjet models with specific serial numbers, ensuring that aircraft meet safety standards set by the Civil Aviation Safety Authority (CASA). For instance, it applies to all models with serial numbers between 24-329 to 24-357 and 25-206 to 25-278, and to certain other models if they have installed the AAK 76-4 reduced approach speed system kit. These serial numbers are crucial for determining which aircraft need to comply with the directive.
Compliance with this directive is mandatory, requiring operators to adhere to specific timelines and procedures. Operators must ensure that the adjustments and tests for the stall warning system are completed within 300 hours of time in service after 30 September 1979. The directive references two documents for compliance: Learjet Service Bulletin No. 24/25-294 or FAA AD 79-12-05, Amendment 39-3614, paragraph B. These documents provide detailed guidance on how to properly adjust and test the stall warning system, ensuring that the aircraft remains safe for operation.
Operators and entities governed by this directive must meet several obligations to comply with AD/LEARJET/18. They must ensure that the stall warning system is adjusted and tested according to the specified timelines. This involves reviewing the aircraft's service history, identifying the applicable models, and scheduling the necessary maintenance within the stipulated 300-hour period. Additionally, operators need to maintain accurate records of the adjustments and tests performed, as these records may be required for audits or inspections by CASA. Failure to comply with these obligations can result in severe consequences, including penalties and potential grounding of the aircraft.
Failure to comply with AD/LEARJET/18 can result in significant penalties and consequences. The Civil Aviation Regulations 1998 outline potential civil and criminal penalties for non-compliance. Specifically, operators who do not adhere to the requirements of the airworthiness directive may face fines and other civil penalties. Additionally, CASA has the authority to take enforcement actions, such as issuing directives to ground the aircraft or suspending the operator's licence. In severe cases, non-compliance can lead to criminal charges, resulting in substantial fines and imprisonment. The exact penalties depend on the severity and frequency of the non-compliance, but the potential for significant repercussions underscores the importance of adhering to the directive.