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 CAR 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.
Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes
AD/CL-600/59 IDG Cables 10/2002 DM
Applicability: Model CL-600-2B19 "Regional Jet", serial numbers (S/N) 7003 through 7067 and 7069 through 7303; and
Model CL-600-2B16 "Challenger", S/N 5135 through 5194 and 5301 through 5408.
Requirement: If not previously accomplished, carry out the following:
Part A. - For CL-600-2B19 "Regional Jet" Aircraft
- For aircraft S/N 7003 through 7067 and 7069 through 7301, inspect the integrated drive generator (IDG) cables to verify clearances, and repair or replace the IDG cables as required, in accordance with Canadair Alert Service Bulletin (ASB) A601R-24-095 dated 23 March 1999, or ASB A601R-24-095, Revision A, dated 25 March 1999.
- For aircraft S/N 7003 through 7067 and 7069 through 7303, inspect, verify and correct (if required) the clearance between the 10th stage bleed air check valve and the fuel manifold pigtails in accordance with Canadair ASB A601R-73-008 dated 1 April 1999, or ASB A601R-73-008, Revision A, dated 10 April 1999. If there is damage to the fuel manifold pigtails, inspect in accordance with General Electric (GE) CF34 Engine Manual SEI-756, Chapter 72-09-05 (Hose and Tube Assemblies - Inspection/Hose and Tube Assemblies - Repair) to determine serviceability; repair if required.
3. Report the findings of the above inspections (and corrective action if required) to Bombardier.
Part B. - For CL-600-2B16 "Challenger" Aircraft
- Inspect the IDG cables to verify clearances, and repair or replace the IDG cables as required, in accordance with Bombardier Alert Wire TA601-055 dated
31 March 1999, paragraph 6B, Part A, or Bombardier (ASB) A601-0524 dated 19 April 1999.
Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes
AD/CL-600/59 (Continued)
2. Inspect, verify and correct (if required) the clearance between the 10th stage bleed air check valve and the fuel manifold pigtails in accordance with Bombardier Alert Wire TA601-055, paragraph 6C, Part B, or Bombardier ASB A604-73-001 dated 19 April 1999. If there is damage to the fuel manifold pigtails, inspect in accordance with General Electric (GE) CF34 Service Manual SEI-780, Chapter 72-00-00 (Maintenance Practice 57) to determine serviceability; repair if required.
3. Report the findings of the above inspections (and corrective action if required) to Bombardier.
Note: Transport Canada AD CF-99-09R1 refers.
Compliance: For Requirements A.1 and A.2 - Within 50 hours time in service (TIS) after the effective date of this Directive. Any corrective action required as a result of the inspections must be accomplished before further flight.
For Requirement A.3 - Within 10 days after completing the inspection and, if applicable, the corrective action.
For Requirements B.1 and B.2 - Within 50 hours time in service (TIS) after the effective date of this Directive. Any corrective action required as a result of the inspections must be accomplished before further flight.
For Requirement B.3 - Within 10 days after completing the inspection and, if applicable, the corrective action.
This Airworthiness Directive becomes effective on 14 August 2002.
Background: Transport Canada received a report of an incident where the insulation covering on the IDG cable harness on a Regional Jet was chafed down to bare wire; there was also evidence that a brief flash fire occurred. In addition, Transport Canada has received two reports of chafing damage to the main engine right fuel manifold on RJ aircraft.
This Directive requires inspection of IDG cables to verify clearance and, if necessary, corrective action to ensure adequate clearance and/or cable replacement. These actions are intended to ensure the integrity of the IDG cables and fuel manifolds.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 7 August 2002
The above AD is notified in the Commonwealth of Australia Gazette on 14 August 2002.
Overview
The Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) under subregulation 39.1 (1) of the Civil Aviation Regulations 1998, dated 10 August 2002, pertains specifically to the Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes. This AD was enacted to address safety concerns identified by Transport Canada, which reported incidents of chafing damage to the insulation covering on the integrated drive generator (IDG) cable harness on a Regional Jet, leading to a brief flash fire, as well as two reports of chafing damage to the main engine right fuel manifold on RJ aircraft. The directive mandates inspections and corrective actions for specific aircraft models to ensure the integrity of the IDG cables and fuel manifolds, thus mitigating potential safety risks. The objective of this AD is to prevent further incidents of cable damage and to ensure the continued airworthiness of the affected aircraft models.
Scope and Application
The Airworthiness Directive (AD) AD/CL-600/59 applies specifically to the Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes, encompassing the Model CL-600-2B19 "Regional Jet" aircraft with serial numbers ranging from 7003 through 7067 and 7069 through 7303, and the Model CL-600-2B16 "Challenger" aircraft with serial numbers 5135 through 5194 and 5301 through 5408. This AD is issued under subregulation 39.1 (1) of the Civil Aviation Regulations 1998 by the Civil Aviation Safety Authority (CASA) delegate, with the directive becoming effective on 14 August 2002. It mandates specific actions to address safety concerns related to the integrated drive generator (IDG) cables and the clearance between the 10th stage bleed air check valve and the fuel manifold pigtails, aiming to prevent incidents such as chafing and potential fire hazards. Compliance with this AD is required within 50 hours of time in service after the effective date for specified inspections and corrective actions, with findings and corrective actions reported to Bombardier within 10 days of completion.
Key Provisions
The Airworthiness Directive (AD) F2006B08622 mandates specific actions to address safety concerns identified with certain Bombardier (Canadair) CL-600 Series aeroplanes. These actions are outlined in the Requirement section of the AD (sections 1-3). For CL-600-2B19 "Regional Jet" aircraft with serial numbers (S/N) 7003 through 7067 and 7069 through 7301, the IDG cables must be inspected for clearances and repaired or replaced as necessary, following Canadair Alert Service Bulletin (ASB) A601R-24-095 or its revision dated 23 March 1999 and 25 March 1999, respectively. For all CL-600-2B19 "Regional Jet" aircraft with S/N 7003 through 7067 and 7069 through 7303, the clearance between the 10th stage bleed air check valve and the fuel manifold pigtails must be inspected, verified, and corrected if necessary, following Canadair ASB A601R-73-008 or its revision dated 1 April 1999 and 10 April 1999. If there is damage to the fuel manifold pigtails, further inspection must be carried out in accordance with the General Electric CF34 Engine Manual. For CL-600-2B16 "Challenger" aircraft with S/N 5135 through 5194 and 5301 through 5408, the IDG cables must be inspected for clearances and repaired or replaced as necessary, following Bombardier Alert Wire TA601-055 or Bombardier ASB A601-0524 dated 31 March 1999 and 19 April 1999, respectively. Additionally, the clearance between the 10th stage bleed air check valve and the fuel manifold pigtails must be inspected, verified, and corrected if necessary, following Bombardier Alert Wire TA601-055 or Bombardier ASB A604-73-001 dated 19 April 1999. If there is damage to the fuel manifold pigtails, further inspection must be carried out in accordance with the General Electric CF34 Service Manual.
The AD imposes specific obligations on the parties it governs. Aircraft operators and owners must ensure that the inspections and corrective actions are carried out within the specified timeframes. This includes inspecting the IDG cables and the clearance between the 10th stage bleed air check valve and the fuel manifold pigtails, and reporting the findings to Bombardier. Corrective actions, such as repairing or replacing cables, must be completed before further flight. Additionally, operators and owners must ensure that the findings and corrective actions are reported to Bombardier within 10 days of completing the inspections.
Failure to comply with the AD can result in serious consequences. While the AD itself does not explicitly outline specific offences, penalties, or consequences, non-compliance with airworthiness directives is generally considered a violation of the Civil Aviation Safety Authority (CASA) regulations. Such violations can lead to enforcement actions by CASA, including fines, suspension or revocation of airworthiness certificates, and potential criminal charges in cases of gross negligence or willful disregard of safety regulations. The exact penalties would depend on the nature and severity of the breach, as determined by CASA or other relevant authorities.