Overview

The Civil Aviation Regulations 1998 (CAR 1998) were enacted to ensure the safety and efficiency of civil aviation within Australia. Among its provisions, Part 39 includes various safety measures, such as Airworthiness Directives (AD), which are issued to address identified safety issues. This particular AD, AD/B727/170, was introduced in 2001 by the Civil Aviation Safety Authority (CASA) to address corrosion issues at the fuselage circumferential skin joints of Boeing 727 Series aeroplanes. The directive mandates inspections and necessary repairs to ensure these aircraft meet safety standards, thereby mitigating the risk of structural failure. The AD was issued in response to reports of corrosion between the body skins and cold-bonded doublers, and it references FAA AD 2001-09-12 for technical requirements. The policy objective is to maintain the airworthiness of the affected aircraft through timely and appropriate corrective actions.

Scope and Application

The Airworthiness Directive (AD) outlined in this legislative instrument applies specifically to Boeing 727 Series Aeroplanes, more precisely to models 727-100, 727-100C, and 727-200 with line numbers from 1 to 549. This AD mandates corrective actions to address an identified unsafe condition concerning corrosion between the body skins and cold-bonded doublers at the fuselage circumferential skin joints. The requirement necessitates compliance with the technical specifications provided in FAA AD 2001-09-12 Amdt39-12219, with additional reference to Boeing Service Bulletin 727-53-0084 Revision 4. The compliance timeline is set forth in the requirement document with an effective date of 9 August 2001, and the AD itself becomes effective on the same date. This directive is applicable nationwide within Australia, governed by the Civil Aviation Regulations 1998, and is issued under the authority of the Civil Aviation Safety Authority (CASA) delegate, David Alan Villiers. This AD is published in the Commonwealth of Australia Gazette on 11 July 2001, ensuring that all relevant parties are duly informed of the mandated safety measures.

Key Provisions

The Civil Aviation Regulations 1998 (CAR 1998) under Part 39 - 105, specifically address Airworthiness Directives (ADs) through section 39.1. This section empowers the Civil Aviation Safety Authority (CASA) to issue ADs when it is necessary to correct unsafe conditions in aircraft. The AD provided (AD/B727/170) pertains to Boeing 727 Series aeroplanes, specifically the fuselage circumferential skin joints, and is applicable to model 727-100, -100C, and -200 series aircraft with line numbers 1 through 549. This AD mandates corrective actions based on the technical requirements of FAA AD 2001-09-12 Amdt39-12219, with Boeing Service Bulletin 727-53-0084 Revision 4 as a reference. Compliance with this directive requires adherence to the specified requirements and a revised effective date of 9 August 2001. Entities governed by this AD must comply with the outlined requirements, which include actions such as inspections to determine the type of fasteners installed at certain skin joints and replacement of these fasteners if necessary. For certain aircraft, this also involves repetitive inspections and repairs, as well as modifications to certain skin joints. This directive applies to a specific range of Boeing 727 Series aeroplanes and mandates that the corrective actions be taken in accordance with the instructions provided. It is crucial that these actions be carried out at the specified time to ensure the safety and airworthiness of the aircraft. Failure to comply with the AD can result in severe consequences, as it is designed to address safety concerns related to corrosion at fuselage circumferential skin joints. While the regulations do not explicitly detail specific penalties or consequences for non-compliance, it is implied that non-compliance with ADs can lead to enforcement actions by the Civil Aviation Safety Authority. Such actions might include grounding of the aircraft, fines, or other regulatory sanctions. The seriousness of the safety issue at hand underscores the importance of strict adherence to the AD's requirements. In summary, the AD under CAR 1998 mandates specific actions to address safety concerns related to corrosion at the fuselage circumferential skin joints of certain Boeing 727 Series aeroplanes. It sets out clear requirements for inspections, repairs, and modifications that must be completed by the specified date. Non-compliance with these directives could result in significant regulatory consequences, highlighting the critical importance of adhering to the AD to ensure the continued safety and airworthiness of the affected aircraft.