COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/DHC-2/27 Amdt 1 and issues the following AD under subregulation 39.1 (1) of CASR 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 t he 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.
DHC-2 (Beaver) Series Aeroplanes
AD/DHC-2/27
Amdt 2
Horizontal Stabiliser Front Spar 7/2003
Applicability: All model DHC-2 Beaver with serial numbers 1 and subsequent.
Requirement: Inspect the horizontal stabiliser front spar in accordance with Boeing Canada de Havilland Division Service Bulletin 2/47 Revision D.
Note 1: Paragraph 1 (d) does not specify crack limits. If cracks are found, especially if the spar web and the gusset plate (P/N 2-TP-171) are both cracked, contact the manufacturer for advice before returning the aircraft to service.
Note 2: Transport Canada AD CF-91-42 refers.
Compliance: As specified in the Requirement document.
This Amendment becomes effective on 10 July 2003.
Background: Cracks have been discovered in the tailplane front centre spar web and gusset plate of an Australian aircraft.
Amendment 1, effective 6 March 1992, corrected an oversight in the Compliance and introduced a reference to Transport Canada AD CF-91-42.
Amendment 2 updates the revision status of the requirement document. There is no change to the compliance.
The original issue of this AD became effective on 30 April 1992.
David Villiers
Delegate of the Civil Aviation Safety Authority 20 May 2003
The above AD is notified in the Commonwealth of Australia Gazette on 18 June 2003.
Overview
The Civil Aviation Safety Regulations 1998 (CASR 1998) are instrumental in maintaining the safety standards within the Australian civil aviation sector. Enacted by the Commonwealth of Australia, this legislation was introduced to address the need for stringent safety measures in aircraft operations, ensuring that all aircraft meet certain safety standards to protect passengers, crew, and the general public. This legislative instrument, specifically PART 39 - 105 of the Civil Aviation Safety Regulations 1998, aims to mandate the Civil Aviation Safety Authority (CASA) to issue airworthiness directives, thereby ensuring that any identified unsafe conditions in aircraft are rectified promptly. The policy objective is to maintain and enhance the safety of civil aviation through consistent regulatory oversight and mandatory safety directives.
Scope and Application
The Civil Aviation Safety Regulations 1998, specifically Part 39 - 105 of the Civil Aviation Safety Authority Schedule of Airworthiness Directives, apply to all model DHC-2 Beaver aeroplanes with serial numbers 1 and subsequent. This regulation is issued by a delegate of the Civil Aviation Safety Authority (CASA) and applies within the Commonwealth of Australia, governing the airworthiness of these aircraft. The directive mandates that the horizontal stabiliser front spar must be inspected in accordance with Boeing Canada de Havilland Division Service Bulletin 2/47 Revision D, with specific attention to any cracks that may be present. If cracks are found, especially if they affect both the spar web and the gusset plate (P/N 2-TP-171), the operator is advised to contact the manufacturer before returning the aircraft to service. This airworthiness directive is enforceable across all applicable aircraft within the Australian jurisdiction, ensuring that the safety standards are consistently met.
Key Provisions
The Civil Aviation Safety Regulations 1998 (CASR), specifically Part 39 - 105, includes the Airworthiness Directive (AD) AD/DHC-2/27 Amdt 2, which pertains to the inspection of the horizontal stabiliser front spar of all model DHC-2 Beaver aeroplanes with serial numbers 1 and subsequent. According to section 39.1 (1) of the CASR, this AD is issued by a delegate of the Civil Aviation Safety Authority (CASA) to ensure airworthiness. The directive mandates that the horizontal stabiliser front spar of the specified aircraft be inspected in accordance with Boeing Canada de Havilland Division Service Bulletin 2/47 Revision D. If cracks are found, particularly in the spar web and gusset plate (P/N 2-TP-171), the operator must contact the manufacturer for advice before returning the aircraft to service.
The AD imposes specific obligations on the parties involved, primarily the aircraft operators and owners. They are required to conduct the inspection as detailed in the Boeing Canada de Havilland Division Service Bulletin 2/47 Revision D. This involves a thorough examination of the horizontal stabiliser front spar to identify any potential structural defects, particularly cracks. If cracks are detected, the operator must consult with the manufacturer for guidance on the next steps, ensuring the safety and airworthiness of the aircraft before it resumes service. Failure to adhere to these inspection requirements may compromise the safety of the aircraft.
Breaching the requirements of this Airworthiness Directive can lead to serious consequences. While the CASR does not explicitly outline specific penalties for non-compliance with ADs, CASA has the authority to enforce compliance through various means, including administrative actions and potential prosecution. Non-compliance could result in penalties such as fines, enforcement notices, or other regulatory actions that may include grounding the aircraft until the required inspections and repairs are completed. The severity of the penalties may depend on the extent of non-compliance and the risk posed to aviation safety. It is crucial for operators to comply with these directives to maintain the safety standards mandated by CASA.