COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
British Aerospace BAe 125 Series Aeroplanes
AD/HS 125/133
Amdt 2
Electrical Power - Battery and Emergency Contactors
7/93
Applicability: Series 700 and Series 800 aircraft specified in Corporate Jets Limited Service Bulletin SB.24-293-3501A, B, C, D, E, F & G Revision 2 dated 31 March 1993.
Requirement: Modify the battery and emergency power contactors in accordance with the technical requirements of Corporate Jets Limited Service Bulletin SB.24-293-3501A, B, C, D, E, F & G Revision 2 dated 31 March 1993.
Note: This Service Bulletin has been classified as Mandatory by the CAA(UK).
Compliance: Prior to 31 December 1993.
Background: This Directive was originally issued following an in-service electrical overheat caused by a battery short to earth through a battery contactor. Amendment 1 was issued following a revision to the Requirement Document which introduced additional requirements for Series 700 aircraft.
This amendment is issued following a revision to the Requirement Document which introduced additional requirements for Series 800 aircraft. Compliance with the Directive will provide improved system integrity.
Overview
The Civil Aviation Regulations 1998 (Cth) were enacted to ensure the safety and efficiency of civil aviation within Australia, addressing the need for comprehensive regulatory oversight of airworthiness, operation, and maintenance of aircraft. Specifically, Part 39 - 105 of the Civil Aviation Regulations 1998 focuses on the Civil Aviation Safety Authority's schedule of airworthiness directives, ensuring that aircraft meet stringent safety standards. One such directive, AD/HS 125/133 Amendment 2, pertains to British Aerospace BAe 125 Series Aeroplanes, addressing an issue of electrical power related to the battery and emergency contactors. This directive was introduced to mitigate risks associated with electrical overheating and short circuits, thereby enhancing the overall safety and reliability of the specified aircraft models. The directive mandates compliance by 31 December 1993, reflecting the urgency and importance of implementing these safety measures to prevent potential hazards.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105 concerning the Civil Aviation Safety Authority’s Schedule of Airworthiness Directives, apply to British Aerospace BAe 125 Series 700 and Series 800 aircraft, as outlined in the referenced Corporate Jets Limited Service Bulletin SB.24-293-3501A, B, C, D, E, F & G Revision 2 dated 31 March 1993. This legislation mandates modifications to the battery and emergency power contactors of these aircraft in compliance with the technical specifications provided in the Service Bulletin. This directive was classified as mandatory by the UK Civil Aviation Authority (CAA) and aims to address electrical issues, particularly an in-service electrical overheat incident caused by a battery short to earth through a battery contactor. Compliance with the directive is required before 31 December 1993 to ensure improved system integrity and safety within the specified aircraft series.
Key Provisions
The Civil Aviation Regulations 1998 (Cth), under PART 39 - 105 and the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives, specifically address the safety requirements for British Aerospace BAe 125 Series Aeroplanes, including Series 700 and Series 800 aircraft. Section AD/HS 125/133 Amendment 2 pertains to the electrical power system, specifically the battery and emergency contactors. The directive requires modifications to these components in order to maintain airworthiness and safety standards (AD/HS 125/133). This requirement is crucial as it addresses an issue of electrical overheating caused by a battery short to earth through a battery contactor, as evidenced by the historical background of the directive. The modifications are detailed in Corporate Jets Limited Service Bulletin SB.24-293-3501A, B, C, D, E, F & G Revision 2 dated 31 March 1993, which has been classified as mandatory by the Civil Aviation Authority (UK).
Entities governed by this directive, including aircraft operators and maintenance providers, must ensure that the modifications to the battery and emergency contactors are completed in accordance with the specified service bulletin. This involves adhering to the technical requirements outlined in the bulletin, which includes precise instructions on the changes needed to prevent electrical faults and enhance the safety and reliability of the aircraft's electrical power system. Compliance with these directives is mandatory and must be achieved before the deadline of 31 December 1993. Failure to comply with the modifications can result in the aircraft being deemed unairworthy, potentially leading to operational prohibitions and safety risks.
Non-compliance with the airworthiness directive AD/HS 125/133 Amendment 2 can lead to significant legal and safety repercussions. Under the Civil Aviation Act 1988 (Cth), failure to adhere to mandatory airworthiness directives can result in penalties. The Civil Aviation Regulations 1998 impose civil penalties for non-compliance, which may include fines and other administrative actions. Additionally, operating an aircraft that does not meet the required airworthiness standards can lead to criminal charges. The maximum penalties for such offences can include substantial fines and imprisonment, reflecting the serious nature of ensuring aircraft safety and the potential risks posed by non-compliance. Thus, it is imperative for all stakeholders to ensure strict adherence to the specified requirements to avoid these severe consequences.