AD/SM-205/25 Amdt 1 - Landing Gear Actuator Attaching Fork

Overview

The Civil Aviation Regulations 1998, enacted by the Parliament of Australia, govern various aspects of civil aviation safety, including airworthiness standards for aircraft. Part 39 - 105 of these regulations specifically addresses Airworthiness Directives, which are mandatory requirements issued by the Civil Aviation Safety Authority (CASA) to correct identified unsafe conditions in aircraft. The purpose of this legislative instrument is to ensure the continued safety of SIAI Marchetti S205 and S208 series aeroplanes by addressing potential safety issues through targeted directives. This particular Airworthiness Directive, AD/SM-205/25 Amendment 1, was introduced to address concerns about fatigue cracking in the main landing gear actuator attaching fork, which could compromise the functionality of both normal and emergency gear down functions. The directive mandates inspections and modifications as specified in Aermacchi Alert Service Bulletin 205B-62 to rectify this issue, ensuring the aircraft meet the necessary safety standards.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, address the maintenance and safety standards for certain aircraft models, including the SIAI Marchetti S205 and S208 series aeroplanes. This legislative instrument, issued by the Civil Aviation Safety Authority (CASA), applies to all Model S205-18/R, S205-20/R, S205-22/R, S208, and S208A aircraft. The directive mandates that an inspection and modification be carried out as detailed in Aermacchi Alert Service Bulletin 205B-62, in response to potential fatigue cracking in the main landing gear actuator attaching fork. This directive ensures that the aircraft remain airworthy and safe for operation by addressing a specific safety concern. Compliance with the AD is required within 10 hours of the aircraft being in service after the directive's effective date of 7 February 2001, unless the specified action has already been taken. This AD is applicable nationwide, aligning with the broader regulatory framework established under the Civil Aviation Regulations 1998, and is notified in the Commonwealth of Australia Gazette to ensure transparency and adherence among relevant stakeholders.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39 - 105, address airworthiness directives specifically for certain SIAI Marchetti aeroplanes, namely the S205 and S208 series. Section 39.1 (1) of the Regulations empowers the Civil Aviation Safety Authority (CASA) to issue directives that are considered necessary to ensure the safe operation of aircraft. This particular airworthiness directive (AD) pertains to the landing gear actuator attaching fork of the specified aircraft models, identified as S205-18/R, S205-20/R, S205-22/R, S208, and S208A. The directive mandates that an inspection and modification, as outlined in Aermacchi Alert Service Bulletin 205B-62, must be carried out. This requirement is crucial because failure of the main landing gear actuator attaching fork due to fatigue cracking could compromise both the normal and emergency gear down functions, thus presenting a significant safety risk. The directive references ENAC-RAI AD 2001-004, which also pertains to the same safety issue. The compliance timeframe stipulates that these actions must be completed within 10 hours of the aircraft being in service after 7 February 2001, unless the inspection and modification have already been performed. The AD imposes specific obligations on the operators and owners of the affected aircraft. They are required to ensure that the inspection and modification are conducted by qualified personnel in accordance with the instructions provided by Aermacchi Alert Service Bulletin 205B-62. Failure to comply with this airworthiness directive can result in serious consequences. Non-compliance could lead to the aircraft being grounded, as the directive is designed to address a critical safety issue. In severe cases, the non-compliance may also attract regulatory scrutiny and potential enforcement actions by CASA. In terms of penalties, the Civil Aviation Regulations 1998 do not specify monetary penalties for non-compliance with airworthiness directives. However, the ramifications of not adhering to these safety requirements can be significant. The primary consequence is the risk to the safety of flight operations. Additionally, CASA has the authority to take enforcement actions, which could include fines, suspension or revocation of airworthiness certificates, or other administrative measures. The specific penalties would depend on the nature and severity of the non-compliance, as determined by CASA.