AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive AD/SD3-30/44 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 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.
Short SD3-30 Series Aeroplanes
AD/SD3-30/44
Amdt 1
Engine Intake Anti-Icing Vane Annunciator
1/2003
Applicability: All SD3-30 series aeroplanes.
Requirement: 1. Modify the central warning panel (CWP) in accordance with Bombardier Aerospace Shorts Brothers PLC Service Bulletin SD330-31-15 Revision 1 dated 29 October 2002.
Note 1: Aeroplanes modified in accordance with Part A of the original Service Bulletin do not require any further action.
2. Ensure the relevant Aircraft Flight Manual (AFM) amendment is embodied as follows:
AFM
Doc.No.SBH.3.3 Doc.No.SBH.3.5 Doc.No.SBH.3.6 Doc.No.SBH.3.7 Doc.No.SBH.3.8 Doc.No.SB.3.9
Amendment
P/20
P/7 P/18 P/18
P/8 P/2
Note 2: This Service Bulletin has been classified as ‘Mandatory’ by the CAA(UK).
Compliance: For Requirement 1 - At the next ‘C’ check or before 28 February 2003, whic hever occurs earlier.
For Requirement 2 - Concurrent with Requirement 1. This Amendment becomes effective on 23 January 2003.
Background: Short Brothers PLC has advised that a number of in flight engine shut downs, whilst flying in icing conditions, have been reported where failure to deploy the engine intake anti- icing vanes (inertial separators) has been cited as a contributory factor.
Short SD3-30 Series Aeroplanes
AD/SD3-30/44 Amdt 1 (continued)
The original issue of this Directive introduced a modification to the CWP, which provided a new annunciator light to alert the pilot that the intake anti- icing vanes have not been deployed, when other anti- icing systems have been selected. The Directive also ensured that the relevant AFM ‘P’ amendment is embodied.
This Amendment corrects wiring anomalies contained in Part A of the original Service Bulletin. Only aeroplanes with certain serial numbers are affected by this amendment.
The original issue of this Airworthiness Directive became effective on 5 September 2002.
James Coyne
Delegate of the Civil Aviation Safety Authority 28 November 2002
The above AD is notified in the Commonwealth of Australia Gazette on 18 December 2002.
Overview
The Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) in 2002 targets Short SD-30 series aeroplanes and was enacted to address safety concerns related to engine intake anti-icing vane deployment during flight in icing conditions. The directive aims to rectify an unsafe condition that had contributed to in-flight engine shutdowns by mandating modifications to the central warning panel to include a new annunciator light, and ensuring updates to the Aircraft Flight Manual. This legislative instrument, AD/SD3-30/44 Amendment 1, was introduced to correct wiring anomalies identified in the original directive and is effective as of 23 January 2003. The directive requires compliance by the next 'C' check or before 28 February 2003, ensuring that affected aircraft meet the safety standards necessary to prevent future incidents.
Scope and Application
This Airworthiness Directive issued by the Civil Aviation Safety Authority (CASA) applies to all Short SD3-30 series aeroplanes and mandates specific modifications to ensure the safe operation of these aircraft. It requires the modification of the central warning panel (CWP) in accordance with a particular service bulletin and ensures that relevant Aircraft Flight Manual (AFM) amendments are implemented. The directive applies to these aircraft regardless of their location within the Australian jurisdiction. The directive does not exclude any aircraft within its scope, although those that have already been modified in line with earlier instructions do not need to take further action. Compliance with the directive is mandatory and must occur at the next 'C' check or before a specified date, whichever is earlier. The directive is applicable nationally within Australia and its requirements can be extended or clarified through subordinate instruments issued by CASA.
Key Provisions
The Airworthiness Directive AD/SD3-30/44 Amendment 1, issued by the Civil Aviation Safety Authority (CASA) delegate, addresses critical safety concerns related to the SD3-30 series aeroplanes. It mandates specific actions to rectify unsafe conditions discovered in the engine intake anti-icing system. The key sections of the AD outline the applicability, requirement, and compliance deadlines. The AD applies to all SD3-30 series aeroplanes (Applicability). The main requirement is to modify the central warning panel (CWP) according to Bombardier Aerospace Shorts Brothers PLC Service Bulletin SD330-31-15 Revision 1 dated 29 October 2002, and to ensure the relevant Aircraft Flight Manual (AFM) amendment is implemented (Requirement). Modifications must occur at the next 'C' check or before 28 February 2003, whichever is earlier, and the AFM amendment must be concurrent with the CWP modification (Compliance).
Entities governed by this AD, primarily the operators of SD3-30 series aeroplanes, are required to follow the specified modifications and updates. Operators must ensure that the CWP is modified as per the Service Bulletin, and the AFM is updated with the specified amendments. These obligations are necessary to maintain the airworthiness of the aircraft and to mitigate the risk of in-flight engine shut downs due to failures in the engine intake anti-icing system. Failure to comply with this AD may result in significant safety risks, potentially leading to regulatory action.
The AD does not explicitly state specific offences or penalties for non-compliance. However, non-compliance with an Airworthiness Directive can result in severe consequences, including grounding of the aircraft, fines, and legal action by CASA. Under the Civil Aviation Act 1988 and the Civil Aviation Regulations 1988, non-compliance with such directives can lead to enforcement actions, which may include substantial fines, operational restrictions, and potential criminal charges for individuals responsible for the non-compliance. The seriousness of these consequences underscores the importance of adhering to the AD's requirements to ensure aviation safety.