Overview

The Civil Aviation Safety Regulations 1998, established by the Parliament of Australia, aim to ensure the safety of civil aviation within Australia. This legislation provides a framework for the Civil Aviation Safety Authority (CASA) to issue safety regulations and directives to mitigate risks associated with civil aviation operations. One such directive, AD/ECUREUIL/98, was introduced to address a specific safety concern identified with the Eurocopter AS 350 (Ecureuil) Series Helicopters. The problem this directive seeks to resolve is the potential for the fuel bleed lever to be lost during flight, which could subsequently collide with the tail rotor, thereby compromising the aircraft's safety. The policy objective behind this directive is to mandate modifications to the fuel bleed system and prohibit the fitting of certain fuel bleed levers to prevent such unsafe conditions from arising.

Scope and Application

This Airworthiness Directive (AD) applies to the Eurocopter AS 350 (Ecureuil) series helicopters, specifically versions B, BA, BB, B1, B2, B3, D, and EC 130 B4, all of which were manufactured prior to modification 073239. The directive is issued under the Civil Aviation Safety Regulations 1998 (CASR) by the Civil Aviation Safety Authority (CASA) delegate, James Coyne. The AD mandates specific modifications to the fuel bleed system of these helicopters to mitigate the risk of the fuel bleed lever being lost in flight, which could otherwise result in a collision with the tail rotor, posing a significant safety hazard. The directive requires compliance within 100 flying hours or six months from the effective date of 10 June 2004, whichever occurs first. Additionally, pre-MOD 073239 fuel bleed levers must not be fitted. This AD is a Commonwealth regulation and extends to all relevant aircraft within the specified categories and conditions.

Key Provisions

The Civil Aviation Safety Regulations 1998 (CASR) under the Civil Aviation Act 1988 establish key provisions for ensuring airworthiness and safety standards in Australia. Specifically, Part 39 - 105 of the Civil Aviation Safety Regulations 1998 (CASR) includes detailed rules on Airworthiness Directives (ADs). These directives are issued by the Civil Aviation Safety Authority (CASA) to address identified safety issues in aircraft or aeronautical products. One such AD is AD/ECUREUIL/98, issued under subregulation 39.1 (1) of CASR 1998, targeting the Eurocopter AS 350 (Ecureuil) Series Helicopters to mitigate specific safety risks. AD/ECUREUIL/98 mandates specific actions to be taken on certain Eurocopter AS 350 helicopter models to address an unsafe condition related to the fuel bleed lever. The applicability section (section 6) specifies that the directive applies to Eurocopter AS 350 helicopter versions B, BA, BB, B1, B2, B3, D, and EC 130 B4, all pre-MOD 073239. The requirement section (section 1) mandates that the fuel bleed be modified according to the instructions detailed in Eurocopter AS 350 Alert Service Bulletin (ASB) No. 28.00.16 dated 3 March 2004 or ASB 28A001 dated 3 March 2004, as applicable. Additionally, the directive prohibits the fitting of pre-MOD 073239 fuel bleed levers. The compliance section (section 3) requires the modifications to be completed within 100 flying hours or 6 months from the effective date of the directive, whichever comes first, and the prohibition on fitting pre-MOD 073239 fuel bleed levers to be enforced immediately from the effective date. The AD imposes clear obligations on the parties it governs. Operators and owners of the specified Eurocopter AS 350 helicopter models must ensure that the fuel bleed is modified as instructed in the referenced service bulletins. They must also ensure that no pre-MOD 073239 fuel bleed levers are fitted to their aircraft. Compliance with these requirements is mandatory and must be achieved within the specified timeframes to maintain the airworthiness of the aircraft. Failure to comply with the AD can lead to significant safety risks, including the potential for the fuel bleed lever to collide with the tail rotor, which could result in severe in-flight incidents. Failure to comply with the provisions of this AD may result in serious consequences. The AD does not explicitly outline specific civil or criminal penalties in the text provided, but non-compliance with ADs generally can lead to enforcement actions by CASA. Such actions may include grounding the aircraft until compliance is achieved, fines, and other regulatory measures. The exact penalties and consequences are governed by the broader provisions of the Civil Aviation Act 1988 and associated regulations, which can include substantial financial penalties and potential criminal charges in cases of gross negligence or willful disregard of safety regulations.