COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 747 Series Aeroplanes
AD/B747/189 Body Station 2598 Bulkhead Inner Chord 11/98
Applicability: Model 747 series aircraft having line positions 1 through 1157.
Requirement: Inspect in accordance with the technical requirements of FAA AD 98-16-13 Amdt 39- 10689.
Note: Boeing Alert Service Bulletin 747-53A2423 refers.
Compliance: As specified in the Requirement document with a revised effective date of 8 October 1998.
This airworthiness directive becomes effective on 8 October 1998.
Background: The FAA received a report that fasteners were missing from the splice fitting of the forward inner chord of the Body Station 2598 bulkhead. The actions specified in this Directive are intended to prevent accelerated fatigue cracking of the inner chords, which could result in inability of the structure to carry horizontal stabiliser flight loads.
Overview
The Civil Aviation Regulations 1998, specifically Part 39, addresses the safety standards and requirements for airworthy aircraft in Australia. Among these, Airworthiness Directive AD/B747/189 pertains to Boeing 747 series aeroplanes, targeting the critical issue of structural integrity at Body Station 2598. Enacted by the Commonwealth of Australia, the objective of this directive is to ensure the safety of these aircraft by addressing the potential risk of accelerated fatigue cracking at the specified bulkhead inner chord. This directive responds to a reported issue of missing fasteners in the splice fitting of the forward inner chord, which, if left unaddressed, could compromise the aircraft's ability to withstand horizontal stabiliser flight loads. Compliance with the directive, which references FAA AD 98-16-13 Amdt 39-10689, is mandated with an effective date of 8 October 1998, reinforcing the commitment to maintaining stringent safety standards in the aviation industry.
Scope and Application
The Civil Aviation Regulations 1998, as amended, apply to all aspects of civil aviation within the Commonwealth of Australia, governing the safety, efficiency, and orderliness of air navigation and the operation of aircraft. Specifically, Part 39 - 105 within the Civil Aviation Regulations addresses the authority of the Civil Aviation Safety Authority (CASA) in issuing airworthiness directives, which are legally binding requirements for the ongoing airworthiness of aircraft. AD/B747/189 pertains to Boeing 747 series aeroplanes, applying to all aircraft within the specified model and line positions 1 through 1157. This directive mandates an inspection of the Body Station 2598 bulkhead inner chord to prevent accelerated fatigue cracking, as outlined in the technical requirements of FAA AD 98-16-13 Amdt 39-10689. The directive became effective on 8 October 1998, with compliance required as specified in the requirement document. Boeing Alert Service Bulletin 747-53A2423 also references this directive. The application of this directive is not limited to a specific geographic area within Australia but extends to all Boeing 747 series aircraft operating under the jurisdiction of CASA. The directive does not specify exclusions or exemptions, thereby applying universally to the identified aircraft within the defined parameters.
Key Provisions
The Civil Aviation Regulations 1998, under Part 39, Section 105, mandate specific airworthiness directives for certain aircraft models, including the Boeing 747 series. Section AD/B747/189 specifically addresses the Body Station 2598 Bulkhead Inner Chord. This directive applies to Model 747 series aircraft with line positions ranging from 1 through 1157 (Section 105). The primary requirement is to inspect the aircraft in accordance with the technical specifications of FAA AD 98-16-13 Amdt 39-10689 (Section 105). The directive references Boeing Alert Service Bulletin 747-53A2423 for further guidance. Compliance with these requirements is necessary and must be achieved as outlined in the specified document, with a revised effective date of 8 October 1998 (Section 105). The airworthiness directive itself becomes effective on the same date.
The obligations imposed by this legislation require operators of the specified Boeing 747 series aircraft to ensure that all inspections are conducted in strict adherence to the outlined technical requirements. This involves meticulous adherence to the inspection procedures detailed in FAA AD 98-16-13 Amdt 39-10689. Operators must ensure that the aircraft are inspected at the designated Body Station 2598 Bulkhead Inner Chord to prevent any potential accelerated fatigue cracking, which could compromise the aircraft's structural integrity. The directive explicitly states that the inspection must be performed to the technical specifications and timelines provided, and any deviations from these requirements could result in non-compliance with the Civil Aviation Regulations 1998.
The Civil Aviation Regulations 1998 include provisions for breaches of the airworthiness directives. Any failure to comply with the mandated inspections or to meet the specified technical requirements could result in significant legal consequences. Operators found in breach of these directives could face substantial penalties. While the exact penalties are not specified in the text, the consequences of non-compliance could include fines, suspension of the aircraft’s airworthiness certificate, or other regulatory actions deemed necessary by the Civil Aviation Safety Authority. The severity of the penalties may depend on the extent of non-compliance and the potential risk posed to aviation safety.