AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/SD3-30/36 Amdt 2 and issues the following 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 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.
Short SD3-30 Series Aeroplanes
AD/SD3-30/36
Amdt 3
Engine Mounting Tubes and Fittings 3/2003
Applicability: All SD3-30 aircraft that have not yet complied with Shorts Service Bulletin (SB) SD330- 71-23 or which are currently required to perform the 6 month repeat inspections in accordance with SB SD330-71-23 original issue, Revision 1, or Revision 2.
Note: All aircraft that have complied with a previous issue of this Directive and determined that no corrosion exists, or have replaced all corroded engine tube sub- assemblies in accordance with Part B of a previous Requirement document, are not required to comply with Amendment 3 of this Directive.
Requirement: Action in accordance with Shorts Service Bulletin SD330-71-25, or SD330-71-25 Revision
Note: The Requirement document covers information contained in Service Information Letter 261, which will be cancelled.
Compliance: Unless in compliance with the previous issue of this Directive, before 31 May 2003 or at the next required repeat inspection in accordance with SB SD330-71-23 original issue, Revision 1, or Revision 2; whichever occurs first.
The Amendment becomes effective on 20 March 2003.
Background: The manufacturer received reports of corrosion on the internal surface of the engine mounting tubes, tube end fittings, taper pins, and also on the foot fittings.
Amendment 1 corrected ambiguities and errors in the Requirement document.
Amendment 2 introduced a new Requirement document, which superseded SB SD330-71- 23 at all issues.
Short SD3-30 Series Aeroplanes
AD/SD3-30/36 Amdt 3 (Continued)
Amendment 3 is issued in response to a revision of the Requirement document which provides additional information on inspection for damage to the taper pin holes and installation of the taper pins.
Amendment 2 of this Airworthiness Directive became effective on 28 November 2002. Amendment 1 of this Airworthiness Directive became effective on 23 March 2000.
The original issue of this Airworthiness Directive became effective on 25 March 1999.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 31 January 2003
The above AD is notified in the Commonwealth of Australia Gazette on 26 February 2003.
Overview
The Airworthiness Directive (AD) AD/SD3-30/36 Amdt 3 was introduced in 2003 to address the issue of corrosion in the engine mounting tubes and fittings of Short SD3-30 Series aeroplanes. This AD was issued by the Civil Aviation Safety Authority (CASA) delegate, David Alan Villiers, under subregulation 39.1(1) of the Civil Aviation Regulations 1998 (CAR 1998). The primary problem it aimed to resolve was the corrosion identified on the internal surfaces of engine mounting tubes, tube end fittings, taper pins, and foot fittings, which could compromise the safety and airworthiness of the affected aircraft. The policy objective of this directive was to ensure that necessary corrective actions are taken to prevent unsafe conditions from arising due to the identified corrosion issues, thereby enhancing the overall safety standards within the aviation industry. The directive requires compliance with specific inspection and repair protocols as outlined in relevant service bulletins to mitigate the risks associated with the identified corrosion.
Scope and Application
This Airworthiness Directive (AD) applies to all SD3-30 series aeroplanes that have not yet complied with the Shorts Service Bulletin (SB) SD330-71-23 or are required to perform the 6-month repeat inspections as per SB SD330-71-23 original issue, Revision 1, or Revision 2. This legislative instrument, issued under subregulation 39.1(1) of the Civil Aviation Regulations 1998, targets specific aircraft and their maintenance to address safety concerns related to corrosion in engine mounting tubes, tube end fittings, taper pins, and foot fittings. The directive does not apply to SD3-30 aircraft that have already complied with previous issues of this Directive and have determined no corrosion exists, or those that have replaced all corroded engine tube sub-assemblies in accordance with a previous Requirement document. The directive requires action to be taken according to the instructions in Shorts Service Bulletin SD330-71-25 or SD330-71-25 Revision, with compliance necessary before 31 May 2003 or at the next required repeat inspection, whichever occurs first. The AD extends its jurisdiction across the Commonwealth of Australia and is enforced by the Civil Aviation Safety Authority (CASA).
Key Provisions
This legislative instrument, an Airworthiness Directive (AD), outlines specific requirements for SD3-30 Series Aeroplanes in relation to their engine mounting tubes and fittings. According to section (a) of the AD, the directive applies to all SD3-30 aircraft that have not yet complied with Shorts Service Bulletin (SB) SD330-71-23 or are currently required to perform the 6-month repeat inspections in accordance with SB SD330-71-23 original issue, Revision 1, or Revision 2. However, aircraft that have previously complied with a previous issue of this directive and determined that no corrosion exists, or have replaced all corroded engine tube sub-assemblies in accordance with Part B of a previous Requirement document, are not required to comply with this amendment. As per section (b), the requirement for this AD is for action to be taken in accordance with Shorts Service Bulletin SD330-71-25, or SD330-71-25 Revision, and the Requirement document covers information contained in Service Information Letter 261, which will be cancelled.
The AD imposes several obligations and requirements on the parties it governs. Firstly, as per section (c), compliance must be achieved before 31 May 2003 or at the next required repeat inspection in accordance with SB SD330-71-23 original issue, Revision 1, or Revision 2, whichever occurs first. Secondly, the AD requires aircraft owners and operators to follow the instructions set out in the Requirement section, which includes the inspection and repair of engine mounting tubes, tube end fittings, taper pins, and foot fittings as per SB SD330-71-25 or SD330-71-25 Revision. Finally, aircraft owners and operators must ensure that any work carried out is performed by appropriately qualified and authorised personnel.
Failure to comply with the AD may result in civil or criminal consequences, including fines and imprisonment. The AD does not specify the exact penalties, but it is worth noting that the Civil Aviation Safety Authority (CASA) has the power to enforce the AD and take action against non-compliant aircraft owners and operators. CASA may also impose penalties on aircraft operators who allow an aircraft to be used in a manner that contravenes the AD. In addition, failure to comply with the AD may result in the aircraft being grounded, which could have serious safety implications.