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 (Boeing Canada/
de Havilland) DHC-8 Series Aeroplanes
AD/DHC-8/76 Electrical Arcing and High Pressure Fuel Line 1/2001
DM
Applicability: Model 201, 202, 301, 311, 314 and 315 series aeroplanes with Serial Numbers 100
through 552 inclusive.
Requirement: 1. Inspect the junction of wire bundle Part Number (P/N) 3021-14F20-2 and fuel line P/N 3036484 for damage, as described in Bombardier Alert Service Bulletin (ASB) A8-73-23 dated 3 November 2000.
2. If any damage is found during the Requirement 1 inspection repair the damage in accordance with ASB A8-73-23.
3. Incorporate Modification 8Q101164 in accordance with ASB A8-73-23.
Incorporation of Modification 8Q101164 is terminating action for the Requirement 1 repetitive inspections.
Note: Transport Canada AD CF-2000-33 refers.
Compliance: For Requirement 1 - Within 50 hours time in service (TIS) or 10 days from the effective date of this Directive, whichever occurs first, and thereafter at intervals not to exceed 500 hours TIS or three months, whichever occurs first, until Modification 8Q101164 is incorporated.
For Requirement 2 - Before further flight.
For Requirement 3 - Within 1000 hours time TIS or six months from the effective date of this Directive, whichever occurs first.
This Airworthiness Directive becomes effective on 23 November 2000.
Background: Bombardier has advised that a DHC-8 aeroplane was found to have a pinhole in high pressure fuel line P/N 3036484 caused by electrical arcing from an adjoining wire bundle P/N 3021-14F20-2. The arcing occurred approximately 100 mm (4 inches) from the fuel-cooled oil cooler.
Bombardier (Boeing Canada/
de Havilland) DHC-8 Series Aeroplanes
AD/DHC-8/76 (Continued)
The fuel and wire bundle are separated by two cushion clamps, which can rotate, allowing the wire bundle to chafe against the fuel line.
This Directive requires initial and repetitive inspection of the fuel line and wire harness, together with incorporation of a modification which provides terminating action for
the inspections.
Eugene Paul Holzapfel
Delegate of the Civil Aviation Safety Authority 20 November 2000
The above AD is notified in the Commonwealth of Australia Gazette on 23 November 2000.
Overview
The Airworthiness Directive (AD) AD/DHC-8/76 issued under the Civil Aviation Regulations 1998, mandates safety measures for Bombardier (Boeing Canada/de Havilland) DHC-8 Series Aeroplanes, specifically those of Model 201, 202, 301, 311, 314, and 315 series with serial numbers 100 through 552. This directive was introduced to address an identified safety issue concerning electrical arcing from an adjoining wire bundle to a high-pressure fuel line, which can cause damage to the fuel line. The AD was enacted by the Civil Aviation Safety Authority (CASA) to ensure the safety of the aircraft by requiring inspections and repairs to prevent the unsafe condition from occurring. The policy objective of the AD is to mandate corrective actions to ensure continued airworthiness and safety of the specified aircraft models.
Scope and Application
The Airworthiness Directive (AD) F2006B09234, issued under the authority of the Civil Aviation Safety Authority (CASA), pertains to specific Bombardier (Boeing Canada/de Havilland) DHC-8 Series Aeroplanes, namely Model 201, 202, 301, 311, 314, and 315 series aeroplanes with serial numbers ranging from 100 through 552 inclusive. This directive applies to these aircraft to address an identified unsafe condition involving electrical arcing and potential damage to a high-pressure fuel line. The directive mandates inspections, repairs, and modifications to ensure the airworthiness of these aircraft, with compliance timelines specified for each requirement. The directive's geographic reach is national, applying across the Commonwealth of Australia, and it becomes effective from the date of its publication in the Commonwealth of Australia Gazette. The AD references Transport Canada AD CF-2000-33 and incorporates Bombardier Alert Service Bulletin A8-73-23 to provide detailed instructions for the necessary actions.
Key Provisions
The Airworthiness Directive (AD) issued under the Civil Aviation Regulations 1998 (CAR 1998) mandates certain actions to be taken in relation to specified DHC-8 series aeroplanes. According to section 39.1(1) of the CAR 1998, the Civil Aviation Safety Authority (CASA) delegate has issued this AD, which is applicable to Model 201, 202, 301, 311, 314 and 315 series aeroplanes with Serial Numbers 100 through 552 inclusive. The directive outlines specific requirements and compliance timeframes. Firstly, the AD mandates inspecting the junction of wire bundle P/N 3021-14F20-2 and fuel line P/N 3036484 for any damage as described in Bombardier Alert Service Bulletin (ASB) A8-73-23 dated 3 November 2000. If any damage is identified during this inspection, it must be repaired in accordance with the same ASB. Secondly, the directive requires the incorporation of Modification 8Q101164 as per ASB A8-73-23. This modification serves as terminating action for the repetitive inspections stipulated in Requirement 1.
The AD imposes several obligations on the parties involved. Operators of the affected DHC-8 series aeroplanes are required to inspect the specified wire bundle and fuel line within 50 hours of time in service (TIS) or 10 days from the effective date of the directive, whichever is earlier. These inspections must then be repeated at intervals not exceeding 500 hours TIS or three months, whichever is sooner, until the specified modification is incorporated. The repair of any damage found during inspection must be conducted before further flight. The incorporation of Modification 8Q101164 must be completed within 1000 hours TIS or six months from the effective date of the directive, whichever is earlier. Failure to adhere to these requirements and timelines may result in non-compliance with aviation safety standards, potentially leading to unsafe conditions.
The AD outlines specific penalties and consequences for non-compliance. Although the text does not explicitly state the maximum penalties, non-compliance with ADs can result in civil penalties, including fines. In more severe cases, non-compliance can lead to criminal charges, potentially resulting in imprisonment. The specific penalties may vary depending on the nature and extent of the non-compliance, as well as any resulting harm or risk to safety. Operators must ensure strict adherence to the AD to avoid these legal consequences and to maintain the airworthiness of the affected aircraft.