COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Aerospatiale (Socata) TB 20 (Trinidad) Series Aeroplanes
AD/TB 20/38 Seat Unlocking 7/2001
Applicability: All TB 20 aircraft without Socata modification No. 165 incorporated in production. Requirement: Action in accordance with Socata Service Bulletin No. 10-115-25.
Note: DGAC AD 2001-005(A) refers.
Compliance: Unless already accomplished, at the next scheduled inspection after 19 July 2001.
This Airworthiness Directive becomes effective on 12 July 2001.
Background: The manufacturer received reports of front seats unlocking. Investigation revealed interference of the seat pan with the locking mechanism as the cause. This Directive requires modification action.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 1 June 2001
The above AD is notified in the Commonwealth of Australia Gazette on 13 June 2001.
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Overview
The Civil Aviation Regulations 1998 (CAR 1998) were enacted to provide comprehensive rules and standards for civil aviation operations in Australia, ensuring the safety and efficiency of air travel. Part 39 of the CAR 1998, particularly the Airworthiness Directives section, addresses specific safety concerns by issuing mandatory instructions to correct identified unsafe conditions in aircraft. The Civil Aviation Safety Authority (CASA) issues these directives, reflecting the authority's commitment to maintaining high safety standards. The policy objective is to ensure that all aircraft meet stringent safety criteria, thereby protecting passengers, crew, and the public from potential hazards. The specific Airworthiness Directive AD/TB 20/38 was introduced to address an issue identified with the Aerospatiale (Socata) TB 20 (Trinidad) Series Aeroplanes, specifically the unlocking of front seats due to interference of the seat pan with the locking mechanism. This directive mandates that all affected aircraft undergo modifications as outlined in Socata Service Bulletin No. 10-115-25 to rectify the unsafe condition.
Scope and Application
The Civil Aviation Regulations 1998, as amended, apply to all aspects of civil aviation in Australia and include regulations for the maintenance and airworthiness of aircraft. This specific Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998 targets Aerospatiale (Socata) TB 20 (Trinidad) Series Aeroplanes, specifically those without Socata modification No. 165 incorporated in production. The AD was issued by the delegate of the Civil Aviation Safety Authority (CASA) to address an unsafe condition identified in these aircraft, which involved the unlocking of the front seats. The requirement for action is stipulated in Socata Service Bulletin No. 10-115-25, and the directive refers to the French DGAC AD 2001-005(A). Compliance with this AD mandates that the specified modifications be completed at the next scheduled inspection following 19 July 2001, with the directive becoming effective on 12 July 2001. This AD is a regulatory tool to ensure the safety of the aircraft by mandating specific corrective actions to rectify the identified issue.
Key Provisions
The Airworthiness Directive (AD) issued under the Civil Aviation Regulations 1998 (CAR 1998) (section 39.1 (1)) mandates specific actions to be taken on certain aircraft to correct identified unsafe conditions. In this case, the AD pertains to Aerospatiale (Socata) TB 20 (Trinidad) series aeroplanes, specifically those that have not incorporated Socata modification No. 165 (AD/TB 20/38). The requirement for this AD is that the action specified in the directive must be implemented in accordance with Socata Service Bulletin No. 10-115-25, which addresses issues related to seat unlocking caused by interference of the seat pan with the locking mechanism. The compliance timeframe dictates that this action must be undertaken at the next scheduled inspection following 19 July 2001.
The AD imposes specific obligations on the owners and operators of the affected aircraft. They must ensure that the required modifications, as detailed in Socata Service Bulletin No. 10-115-25, are completed. This includes conducting a thorough inspection to identify the affected aircraft and ensuring that the modification is carried out by a certified technician or engineer. Furthermore, the directive requires that records of the compliance with the AD are maintained and available for inspection by the Civil Aviation Safety Authority (CASA) upon request.
Failure to comply with the AD can result in serious consequences. Non-compliance with airworthiness directives is considered a breach of civil aviation regulations, and the relevant authorities have the power to take enforcement actions. In the case of serious non-compliance, this can lead to the grounding of the aircraft, which can significantly impact operations and result in financial losses. Additionally, operators and owners of non-compliant aircraft may face penalties as stipulated by the Civil Aviation Act 1988, which can include fines and other sanctions. It is imperative for all stakeholders to adhere to the AD to ensure the safety and airworthiness of the aircraft.