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/JETSTREAM/93 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.
British Aerospace BAE 3100 (Jetstream) Series Aeroplanes
AD/JETSTREAM/93
Amdt 1
Vertical Stabiliser Attachment Fittings 4/2003
Applicability: All Model 3100 and 3200 Series aircraft.
Requirement: Inspect in accordance with BAE Systems Mandatory Service Bulletin 55-JA020543.
Note: UK CAA AD 004-10-2002 refers.
Compliance: Carry out the initial inspection within 2 years after 17 April 2003. If Part 2 of the original Requirement document (SB 55-JA010941) was complied with, then the initial inspection requirements have been satisfied. If operators have removed the horizontal stabiliser and have carried out detailed visual inspections of the attachment fitting lugs, then the initial inspection requirements have been satisfied.
Accomplish repeat inspections after accomplishment of the initial inspection, at intervals not to exceed 8 years or 4,000 flight hours, whichever occurs first.
This Amendment becomes effective on 17 April 2003.
Background: Fretting corrosion was found during inspection of the horizontal and vertical stabiliser attachment bolts on in-service aircraft. The corrosion was found on the horizontal stabiliser attachment fitting lugs (forward and rear) and the vertical stabiliser attachment fitting lugs (rear).
Amendment 1 is issued in response to a new Requirement document, which introduces improved access, and, as a result, no credit can be taken for inspections carried out to the Maintenance Schedule or Service Bulletin 55-JA010941 Part 1. The corrosion treatment is moved into separate Service Bulletin 55-JA020544.
The original issue of this Airworthiness Directive became effective on 8 August 2002.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 5 March 2003
The above AD is notified in the Commonwealth of Australia Gazette on 26 March 2003.
Page 1 of 1
Overview
The Civil Aviation Safety Regulations 1998 (CAR 1998) were enacted by the Australian Government to ensure the safety of civil aviation within Australia. The regulations are administered by the Civil Aviation Safety Authority (CASA), which is responsible for overseeing the safety standards and regulatory compliance of aviation activities in the country. The objective of these regulations is to provide a comprehensive framework for ensuring that aircraft and aeronautical products are maintained in a safe condition, thereby protecting the public and promoting the safe, efficient and orderly development of civil aviation. This particular legislative instrument amends the existing Airworthiness Directive AD/JETSTREAM/93 for British Aerospace BAE 3100 (Jetstream) Series Aeroplanes to address issues of fretting corrosion found during inspections of the horizontal and vertical stabiliser attachment bolts on in-service aircraft. The directive requires inspections to be carried out in accordance with BAE Systems Mandatory Service Bulletin 55-JA020543, with specific timelines and conditions for initial and repeat inspections.
Scope and Application
This legislative instrument pertains to the Civil Aviation Safety Regulations 1998, specifically Airworthiness Directive (AD) AD/JETSTREAM/93 Amendment 1, issued by the Civil Aviation Safety Authority (CASA). The AD applies to all Model 3100 and 3200 Series British Aerospace BAE 3100 (Jetstream) aeroplanes. The directive mandates inspections of the vertical stabiliser attachment fittings to address fretting corrosion found on the horizontal and vertical stabiliser attachment bolts. The inspections must be carried out in accordance with BAE Systems Mandatory Service Bulletin 55-JA020543, with reference to UK CAA AD 004-10-2002. Operators must conduct the initial inspection within two years of the directive's effective date of 17 April 2003, with exceptions for those who have already complied with Part 2 of the original requirement document (SB 55-JA010941) or carried out detailed visual inspections of the attachment fitting lugs. Subsequent inspections must occur at intervals not exceeding eight years or 4,000 flight hours, whichever comes first. This legislative instrument applies nationally within Australia and is enforced through the Civil Aviation Safety Regulations 1998.
Key Provisions
The Civil Aviation Safety Regulations 1998, under Part 39, contain provisions for Airworthiness Directives (ADs) that mandate specific safety measures for certain aircraft. The most recent AD, AD/JETSTREAM/93 Amendment 1, pertains to all Model 3100 and 3200 Series British Aerospace BAE 3100 (Jetstream) aeroplanes. This AD requires an inspection of the vertical stabiliser attachment fittings, in accordance with BAE Systems Mandatory Service Bulletin 55-JA020543, to address fretting corrosion found on the horizontal and vertical stabiliser attachment bolts. This inspection must be carried out within two years from the directive's effective date of 17 April 2003, unless the operator has already complied with Part 2 of the original requirement document (SB 55-JA010941) or conducted detailed visual inspections of the attachment fitting lugs.
Operators of the affected aircraft must adhere to the inspection protocols specified in the AD to ensure compliance with civil aviation safety standards. This entails conducting the initial inspection within the stipulated timeframe and subsequent repeat inspections at intervals not exceeding eight years or 4,000 flight hours, whichever comes first. The AD also specifies that no credit can be taken for inspections performed under the Maintenance Schedule or Service Bulletin 55-JA010941 Part 1, as the amendment introduces improved access and separate corrosion treatment procedures detailed in Service Bulletin 55-JA020544.
Failure to comply with the requirements set out in this AD may result in significant safety risks, potentially leading to severe consequences for the aircraft's airworthiness. The AD is legally binding and non-compliance could result in enforcement actions by the Civil Aviation Safety Authority (CASA). While the specific penalties for non-compliance are not detailed in the AD, they could include fines, suspension or revocation of airworthiness certificates, or other regulatory measures designed to enforce adherence to aviation safety standards. The penalties are intended to ensure that all operators take the necessary steps to maintain the safety and airworthiness of their aircraft in accordance with the directives issued by CASA.