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/16 Secondary Yaw Damper Servo Cable
Clamp Bolt - Inspection
Applicability: All model 25 with S/Nos. 25-003 to 25-249. Document: Gates Learjet SB 25-285.
Compliance: Within 100 hours time in service after 31 December 1978.
10/78
Overview
The Civil Aviation Regulations 1998 (Cth) are a comprehensive set of rules governing the operation and maintenance of aircraft in Australia, designed to ensure safety and efficiency in civil aviation. Among its various provisions, Part 39 specifically addresses airworthiness directives, which are regulatory mandates issued to correct an unsafe condition on an aircraft. This particular legislative instrument, AD/LEARJET/16, targets Gates Learjet 24 & 25 series aeroplanes, specifically mandating an inspection of the secondary yaw damper servo cable clamp bolt for model 25 aeroplanes with serial numbers 25-003 to 25-249. This directive was introduced by the Civil Aviation Safety Authority under the authority granted by the Civil Aviation Act 1988 (Cth), aiming to rectify identified safety concerns and ensure the continued safe operation of affected aircraft. The policy objective is to proactively manage and mitigate risks associated with specific aircraft components, thereby enhancing overall aviation safety.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the Gates Learjet 24 & 25 Series Aeroplanes and outlines an Airworthiness Directive (AD) concerning the Secondary Yaw Damper Servo Cable Clamp Bolt Inspection. This AD applies exclusively to Learjet 25 models with serial numbers ranging from 25-003 to 25-249. The compliance requirement mandates that the inspection be conducted within 100 hours of time in service after 31 December 1978, as detailed in Gates Learjet Service Bulletin 25-285. The directive is under the jurisdiction of the Civil Aviation Safety Authority (CASA) and applies nationally across Australia. The AD does not specify any exclusions or exemptions, and it is directly applicable to the specified aircraft models and serial number range without the need for subordinate instruments to extend or restrict its application.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105 (sections 39.105(1) and 39.105(2)), outline the requirements for the airworthiness of Gates Learjet 24 & 25 series aeroplanes. The regulation pertains to the secondary yaw damper servo cable clamp bolt, as detailed in AD/LEARJET/16. According to these provisions, all Gates Learjet 25 models with serial numbers ranging from 25-003 to 25-249 must undergo a compliance check within 100 hours of time in service after 31 December 1978. This is to ensure that the secondary yaw damper servo cable clamp bolt is inspected and maintained according to the guidelines provided in Gates Learjet Service Bulletin 25-285.
These regulations impose clear obligations on the operators and maintenance personnel of the specified Gates Learjet 25 models. The primary responsibility is to ensure that the aircraft meets the safety standards set forth by the Civil Aviation Safety Authority (CASA). This includes conducting the required inspections and maintenance of the secondary yaw damper servo cable clamp bolt within the stipulated timeframe. Operators must ensure that their maintenance records are up-to-date and that all required inspections are logged accurately. Failure to comply with these requirements can result in the aircraft being deemed unairworthy, potentially leading to grounding and further regulatory action.
Failure to adhere to the airworthiness directives as outlined in the Civil Aviation Regulations 1998 can lead to serious consequences. If an operator fails to comply with the inspection and maintenance requirements for the secondary yaw damper servo cable clamp bolt, they may face penalties under section 39.105(3). The penalties for non-compliance can include fines and other civil penalties, as well as potential criminal charges if the non-compliance leads to safety incidents. The severity of the penalties depends on the degree of negligence and the impact of the non-compliance on aviation safety. It is crucial for operators to take these regulations seriously to avoid any legal or safety repercussions.