Overview

The Civil Aviation Regulations 1998 (CAR 1998) were enacted to ensure the safety and efficiency of civil aviation in Australia. One of the specific Airworthiness Directives under these regulations is AD/B737/165 issued in 2001, which addresses a safety concern with Boeing 737-700 and –800 series aircraft. The directive was introduced to mandate inspections of the aft pressure bulkhead-to-fuselage attachment to prevent fatigue cracking, thereby ensuring the continued airworthiness of affected aircraft. This Airworthiness Directive was issued by the Civil Aviation Safety Authority (CASA) delegate under the authority granted by subregulation 39.1 (1) of CAR 1998, with the aim of mitigating safety risks associated with the specified structural components of the aircraft. The directive specifies that inspections must be conducted in accordance with FAA AD 2001-13-23 Amdt 39-12305, and compliance must be achieved within 90 days after the directive’s issuance or before the aircraft accumulates 3,000 total flight cycles, whichever occurs later.

Scope and Application

This legislative instrument pertains to a specific airworthiness directive issued under the Civil Aviation Regulations 1998, specifically within Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives. This directive applies to the Boeing 737 Series Aeroplanes, particularly the Model 737-700 and –800 series aircraft, covering a specific range of line numbers. The directive mandates inspections in accordance with the technical requirements of FAA AD 2001-13-23 Amdt 39-12305, which are aimed at identifying and rectifying any issues with the tension bolts at the attachment of the aft pressure bulkhead to the fuselage at body station 1016, to prevent fatigue cracking. The directive stipulates that inspections must occur before the accumulation of 3,000 total flight cycles, or within 90 days after 4 October 2001, whichever occurs later. This directive becomes effective from 4 October 2001, and it is enforced by the Civil Aviation Safety Authority through its delegate, David Alan Villiers, as notified in the Commonwealth of Australia Gazette on 12 September 2001.

Key Provisions

The Civil Aviation Regulations 1998 (CAR 1998) outline specific requirements for maintaining the airworthiness of aircraft through various Airworthiness Directives (ADs). One such AD, AD/B737/165 issued on 10 October 2001, pertains to the Boeing 737 Series Aeroplanes, specifically models 737-700 and -800, with particular line numbers (section 1(a)). This directive mandates a detailed inspection of the aft pressure bulkhead-to-fuselage attachment at body station 1016 to ensure that the correct parts are installed and to prevent fatigue cracking (section 1(b)). The inspection must comply with the technical requirements of FAA AD 2001-13-23 Amdt 39-12305 and be carried out before the accumulation of 3,000 total flight cycles, or within 90 days after 4 October 2001, whichever occurs later (section 1(c)). The AD imposes specific obligations on the owners and operators of Boeing 737-700 and -800 series aircraft within the specified line numbers. These parties must ensure that the required inspections are conducted in accordance with the detailed technical specifications provided by FAA AD 2001-13-23 Amdt 39-12305. Additionally, operators must adhere to the compliance timeline, ensuring that the inspection is completed before the aircraft accumulates 3,000 total flight cycles or within 90 days from 4 October 2001, whichever is later. Failure to comply with these requirements could result in the aircraft being deemed unairworthy, potentially leading to grounding and other regulatory actions. Non-compliance with the requirements set forth in this Airworthiness Directive could result in severe consequences. The Civil Aviation Safety Authority (CASA) may take enforcement action against operators who fail to adhere to the inspection mandates. Such actions could include fines, suspension of the aircraft's certificate of airworthiness, or other regulatory penalties. While specific maximum penalties are not detailed in the provided text, non-compliance with ADs is typically treated seriously under CAR 1998, with potential civil and criminal penalties for operators found in breach of the regulations. It is essential for operators to strictly follow the directive to maintain compliance and ensure the safety of the aircraft and its passengers.