COMMONWEALTH OF AUSTRALIA (Civil Aviation 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/ROCK-114/4 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.
Gulfstream (Rockwell) 114 Series Aeroplanes
AD/ROCK-114/4
Amdt 1
Lower Vertical Fin Rib - Modification 7/2002
Applicability: All models with S/Nos. 14000 to 14540.
Requirement: Action in accordance with Commander Aircraft Company Service Bulletin (SB) No.
SB-114-12B.
Note: Aircraft modified per Gulfstream Aerospace Service Bulletins SB-114-12 or SB-114-12A are not in compliance with this Airworthiness Directive.
Compliance: Unless already accomplished, within 100 hours time in service after 11 July 2002 and thereafter at intervals not exceeding 100 hours time in service until modified.
This Airworthiness Directive becomes effective on 11 July 2002.
Background: The original directive was issued to require inspection of the lower vertical fin rib during the 100 hour inspection period for cracking as required by the manufacturer’s airplane maintenance manual.
Amendment 1 is issued to reflect an amendment to the manufacturers service bulletin, which increases the applicability range and an improved repair scheme when cracks are found.
The original issue of this AD became effective in May 1978.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 31 May 2002
The above AD is notified in the Commonwealth of Australia Gazette on 19 June 2002.
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Overview
The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, serve to regulate civil aviation safety within the country. A specific aspect of these regulations is the Airworthiness Directives (ADs), which are issued by the Civil Aviation Safety Authority (CASA) to address identified safety issues with aircraft. These directives ensure that any unsafe conditions are rectified promptly to maintain the highest standards of air safety. For instance, AD/ROCK-114/4, initially issued in May 1978, was aimed at requiring inspections of the lower vertical fin rib on Gulfstream (Rockwell) 114 Series Aeroplanes for cracking. In response to updated safety concerns and improvements in repair schemes, Amendment 1 to AD/ROCK-114/4 was issued on 11 July 2002, mandating specific actions to be taken in accordance with the Commander Aircraft Company Service Bulletin No. SB-114-12B. The AD ensures that all affected aircraft undergo the necessary modifications within specified time intervals to maintain airworthiness.
Scope and Application
This Airworthiness Directive issued by the Civil Aviation Safety Authority (CASA) under subregulation 39.1(1) of the Civil Aviation Regulations 1998 applies specifically to Gulfstream (Rockwell) 114 Series Aeroplanes with serial numbers ranging from 14000 to 14540. The directive mandates that an action be taken in accordance with Commander Aircraft Company Service Bulletin (SB) No. SB-114-12B to address a safety concern related to the lower vertical fin rib. This action must be carried out within 100 hours of time in service after 11 July 2002 and then at intervals not exceeding 100 hours until the necessary modifications are completed. Notably, aircraft that have already been modified per Gulfstream Aerospace Service Bulletins SB-114-12 or SB-114-12A are not compliant with this directive. The directive became effective on 11 July 2002 and was subsequently published in the Commonwealth of Australia Gazette on 19 June 2002. The scope and application of this AD are confined to the specified aircraft models within the defined serial number range, and it does not extend to aircraft that have already undergone the required modifications.
Key Provisions
The key sections of the Airworthiness Directive (AD) AD/ROCK-114/4 Amdt 1 include the applicability (paragraph 1), the requirement (paragraph 2), and the compliance (paragraph 3). The applicability section specifies that the AD applies to all Gulfstream (Rockwell) 114 Series Aeroplanes with serial numbers (S/Nos.) between 14000 and 14540. The requirement section mandates that the action specified in Commander Aircraft Company Service Bulletin (SB) No. SB-114-12B be taken. Notably, aircraft modified according to previous service bulletins (SB-114-12 or SB-114-12A) do not comply with this AD. The compliance section requires that the action be taken unless it has already been completed, within 100 hours of time in service after 11 July 2002, and then at intervals not exceeding 100 hours until the modification is completed.
The obligations imposed by this AD are specific to the maintenance and modification of the lower vertical fin rib of the applicable Gulfstream (Rockwell) 114 Series Aeroplanes. Operators of these aircraft must ensure that the action outlined in Service Bulletin No. SB-114-12B is performed within the specified timeframes. This includes inspecting and, if necessary, modifying the lower vertical fin rib to address any cracking. The AD also requires operators to maintain records demonstrating compliance with these requirements.
Failure to comply with the AD could result in the aircraft being deemed unairworthy, which could lead to enforcement actions by the Civil Aviation Safety Authority (CASA). The AD does not specify any particular offences, penalties, or civil/criminal consequences for non-compliance within the text. However, under the Civil Aviation Act 1988, non-compliance with CASA regulations can result in enforcement actions, including fines and potential prosecution. The specific penalties for such breaches would be determined in the context of the broader aviation regulatory framework.