AD/B727/49 - Main Landing Gear Door Actuator Fitting - Replacement

Overview

The Civil Aviation Regulations 1998, administered by the Civil Aviation Safety Authority (CASA), was enacted to provide comprehensive regulations governing civil aviation safety in Australia. One specific legislative instrument, F2006B02750, pertains to Airworthiness Directives for Boeing 727 Series Aeroplanes, specifically targeting the main landing gear door actuator fitting. This directive, AD/B727/49, was introduced to address the safety issue identified by Boeing Service Bulletin No. 32-96, which mandates the replacement of the main landing gear door actuator fitting before the aeroplane accumulates 18,000 hours of total service time. The policy objective of this directive is to ensure the ongoing airworthiness and safety of Boeing 727 Series aeroplanes by mitigating the risk of potential failures in the landing gear door actuator system.

Scope and Application

The Civil Aviation Safety Authority (CASA) has issued an Airworthiness Directive (AD) under the Civil Aviation Regulations 1998, specifically within Part 39 - 105, which applies to Boeing 727 Series Aeroplanes. This directive, designated as AD/B727/49, pertains to the replacement of the main landing gear door actuator fitting. This requirement is applicable to all models of Boeing 727 aeroplanes. The directive mandates compliance with Boeing Service Bulletin No. 32-96 and necessitates that the specified maintenance action be completed before the aeroplane accumulates 18,000 hours of total time in service. The directive's scope is strictly enforced by CASA and is applicable throughout the Commonwealth of Australia, thereby encompassing both national and international flights operating under Australian registration. This AD does not exclude any aeroplanes from its applicability, ensuring that all Boeing 727 Series aeroplanes adhere to the outlined safety requirements.

Key Provisions

The Civil Aviation Regulations 1998 (CAR) under PART 39 - 105, specifically AD/B727/49, address the airworthiness directive concerning Boeing 727 series aeroplanes, focusing on the main landing gear door actuator fitting. The directive (section 105) mandates the replacement of the main landing gear door actuator fitting before the aeroplane reaches 18,000 hours in total time in service. This requirement is outlined in Boeing Service Bulletin No. 32-96, which serves as the compliance document for the directive. Entities and parties governed by the CAR must adhere to this airworthiness directive by ensuring that the main landing gear door actuator fitting is replaced within the specified timeframe. This obligation is crucial to maintain the safety and airworthiness of the Boeing 727 aeroplanes, as the directive is designed to prevent potential safety hazards that could arise from the failure or malfunction of the main landing gear door actuator fitting. Operators must keep accurate records of the total time in service of their aeroplanes and schedule the necessary maintenance or replacement activities in accordance with the directive's stipulations. Failure to comply with the airworthiness directive AD/B727/49 can result in significant legal and safety repercussions. The Civil Aviation Safety Authority (CASA) has the authority to enforce the CAR, and non-compliance with the specified airworthiness directive may lead to enforcement actions. While the specific penalties are not detailed in the directive itself, CASA can impose various penalties for breaches of airworthiness regulations, including fines, suspension or revocation of certificates of airworthiness, and other administrative actions. These measures are designed to ensure that operators maintain the required safety standards and prevent any potential safety risks associated with non-compliance.