COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes
AD/CL-600/15
Amdt 1
Aileron and Elevator Flutter Dampers 6/89
Applicability: All model CL 600-1A11. All model CL 600-2A12. Model CL 600-2B16 with serial numbers 5001 through 5033.
Requirement: Action in accordance with Canadair Alert Wire TA 600-000-32/194 Rev 1.
Note: Canadian AD CF-86-04 R1 refers.
Compliance: 1. Dampers which have not previously been inspected in accordance with Alert Wire TA 600-000-32/194 Rev 1:
Within 100 hours time in service after 31 October 1986, and thereafter in accordance with 2 below.
2. Dampers which have been inspected in accordance with Alert Wire TA 600-000- 32/194 Rev 1:
- Dampers P/Nos 600-75134-7 and 600-75135-3, that indicated green at the last inspection: At intervals of 200 hours time in service or 6 months, whichever occurs first.
b. Dampers P/Nos 600-75134-9 and 600-75135-5, that indicated green at the last inspection: At intervals of 300 hours time in service or 12 months, whichever occurs first.
c. Dampers P/Nos 600-75134-7 and -9, and P/Nos 600-75135-3 and -5, that indicated completely red at the last inspection: Within 100 hours time in service from the previous inspection, or 3 months, whichever occurs first.
Background: A number of aileron and elevator flutter dampers have been found to be leaking in service, which could render them unserviceable. This could permit flutter to occur in the event of the failure of any two hydraulic systems.
Overview
The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, was introduced to regulate and ensure the safety of civil aviation within Australia. One specific amendment to this regulation, AD/CL-600/15 Amendment 1, addresses aileron and elevator flutter dampers for Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes. The amendment was introduced to address a safety issue where certain dampers were found to be leaking in service, which could lead to unserviceable dampers and potentially allow for flutter in the event of hydraulic system failures. The policy objective of this amendment is to ensure the continued airworthiness and safety of these aircraft by requiring compliance with specific inspection intervals as detailed in the Canadair Alert Wire TA 600-000-32/194 Rev 1.
The amendment applies to specific models of the CL 600 series, including CL 600-1A11, CL 600-2A12, and CL 600-2B16 with serial numbers 5001 through 5033. The requirement involves inspections and actions according to the Alert Wire TA 600-000-32/194 Rev 1, with different intervals depending on the damper part numbers and their inspection results. This directive ensures that any identified issues are addressed promptly, maintaining the safety standards set forth by the Civil Aviation Safety Authority.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, addresses the safety requirements for the Bombardier (Canadair) CL-600 (Challenger) series aeroplanes, setting forth Airworthiness Directives that must be followed to ensure safe operation. This legislation applies to all model CL 600-1A11, model CL 600-2A12, and model CL 600-2B16 aeroplanes with serial numbers ranging from 5001 to 5033. The scope of the regulations includes ensuring the aileron and elevator flutter dampers are maintained according to the specified schedule to prevent the risk of flutter in the event of hydraulic system failures. Compliance with Canadair Alert Wire TA 600-000-32/194 Rev 1 is mandated, with particular attention to the inspection intervals based on the condition of the dampers as indicated by their last inspection. The regulations extend nationally across Australia, enforced by the Civil Aviation Safety Authority, and any non-compliance may result in serious safety hazards.
Key Provisions
The Civil Aviation Regulations 1998, particularly Part 39 - 105 (section (1)), address the maintenance and safety requirements for Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes, focusing on aileron and elevator flutter dampers. Specifically, Airworthiness Directive AD/CL-600/15 Amendment 1 outlines the compliance and inspection requirements for these aircraft models to ensure operational safety (section (2)). The directive applies to all model CL 600-1A11, all model CL 600-2A12, and model CL 600-2B16 with serial numbers ranging from 5001 to 5033 (section (3)).
The directive mandates actions in accordance with Canadair Alert Wire TA 600-000-32/194 Rev 1 (section (4)). It references Canadian Airworthiness Directive CF-86-04 R1 for additional guidance. Compliance with these directives involves inspecting dampers that have not previously been inspected within 100 hours of service after 31 October 1986, and subsequently following a more stringent schedule based on the inspection results (section (5)). Dampers that indicated green at the last inspection must be inspected every 200 hours of service or 6 months, or every 300 hours of service or 12 months, depending on the part numbers. If a damper indicated completely red at the last inspection, it must be inspected within 100 hours of service or 3 months, whichever comes first (section (6)).
Failure to comply with the inspection and maintenance requirements stipulated in this directive could result in serious safety issues, including the potential for flutter to occur if two hydraulic systems fail simultaneously. This could compromise the airworthiness of the aircraft, leading to severe consequences for both the operator and passengers (section (7)). The regulations do not explicitly detail specific offences, penalties, or civil/criminal consequences for non-compliance, but non-compliance could lead to enforcement actions by the Civil Aviation Safety Authority (CASA), which might include fines, suspension of airworthiness certificates, or other regulatory sanctions (section (8)).