Overview

The Civil Aviation Regulations 1998 were enacted to ensure the safety of civil aviation in Australia, and these regulations provide the framework for issuing Airworthiness Directives (ADs) that mandate specific actions to correct unsafe conditions in aircraft. In 2002, the Civil Aviation Safety Authority (CASA) issued Airworthiness Directive AD/SKY ARROW/1 concerning the Iniziative Industriali Italiane Sky Arrow 650 Series Aeroplanes. This directive was introduced in response to reports of crack initiation on the nose gear support bulkhead (STA 600) of certain Sky Arrow aircraft, particularly those with high operating time on grass airfields and training school aircraft that experienced hard landings. The policy objective of this AD is to mandate inspections and necessary modifications to address the identified safety concerns, thereby enhancing the overall airworthiness and safety of the affected aircraft models.

Scope and Application

The Civil Aviation Regulations 1998, under Part 39 - 105, specifically mandates the application of Airworthiness Directives by the Civil Aviation Safety Authority (CASA) to ensure the safety and airworthiness of aircraft within Australia. This particular directive, AD/SKY ARROW/1, applies to specific models of the Iniziative Industriali Italiane Sky Arrow 650 Series aeroplanes, namely the 650TC, 650TCN, and 650TCNS, with serial numbers ranging from C001 through C004, C006 through C008, C011, CN001 through CN006, CN008, CNS010, CNS011, and CNS016. The directive requires an inspection and modification of the nose gear support bulkhead to prevent crack initiation, referencing Iniziative Industriali Italiane Service Bulletin No. SB-C 02/02 dated 15 October 2002. This directive mandates inspections within 10 hours of service time after 18 December 2002, with modifications to be made before further flight if any cracks are detected. If no cracks are found, the modification must be completed by the next scheduled 100-hour maintenance inspection, at the latest before 30 June 2003. The directive became effective on 18 December 2002 and was published in the Commonwealth of Australia Gazette on the same date.

Key Provisions

The Civil Aviation Regulations 1998, under Part 39 - 105, contain specific Airworthiness Directives (ADs) that are crucial for maintaining the safety of aircraft. One such AD is AD/SKY ARROW/1, which pertains to the Iniziative Industriali Italiane Sky Arrow 650 Series Aeroplanes. The directive, issued by the Civil Aviation Safety Authority (CASA) delegate, requires inspections and modifications to the nose gear support bulkhead of certain model aircraft. Specifically, section 1 of the AD applies to Model 650TC aircraft with serial numbers C001 through C004, C006 through C008, and C011, Model 650TCN aircraft with serial numbers CN001 through CN006 and CN008, and Model 650TCNS aircraft with serial numbers CNS010, CNS011, and CNS016. The directive mandates these actions in response to reports of crack initiation in the nose gear support bulkhead, particularly in aircraft that have operated on grass airfields or have experienced hard landings. The AD imposes several obligations on the parties involved. Firstly, aircraft operators must conduct an inspection of the nose gear support bulkhead within 10 hours of time in service after 18 December 2002, unless the inspection has already been completed. If cracks are detected during this inspection, the required modifications must be made before the aircraft is flown again. Secondly, if no cracks are found, the modification must be carried out at the next scheduled 100-hour maintenance inspection after 18 December 2002, or by 30 June 2003 at the latest. These requirements are detailed in section 2 of the AD and are intended to ensure the structural integrity of the affected aircraft. Failure to comply with the AD can result in serious consequences. Under section 3 of the AD, non-compliance with the specified inspection and modification requirements may lead to civil or criminal penalties. The exact nature and severity of these penalties would depend on the specific circumstances and any applicable laws in force at the time of the offence. The AD highlights the importance of adhering to the specified compliance timeline to maintain airworthiness standards and ensure the safety of all involved.