COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
British Aerospace BAe 146 Series Aeroplanes
AD/BAe 146/51 Electrical Power Dual Lead Acid Battery Installation
6/95
Applicability: All BAe 146 series aircraft equipped with a dual lead-acid battery installation.
Note: Dual lead-acid battery installation was introduced by BAe Modification HCM40028B or D.
Requirement: Action in accordance with Avro International Aerospace Mandatory Inspection Service Bulletin S.B.24-107 dated 25 January 1995.
Note: CAA(UK) AD 005-01-95 refers.
Compliance: Prior to 30 June 1995.
Background: Avro International Aerospace has advised that they have received reports indicating that the two-way link between terminals `D8’ and `D9’ on terminal block `D’ may not be installed on some aircraft with dual lead-acid battery installations, this condition may allow premature battery discharge. This Directive ensures the aircraft wiring configuration is correct and that battery charge is preserved to meet the requirement for emergency electrical power. The CAA(UK) compliance is extended by approximately two calendar months.
Overview
The Civil Aviation Regulations 1998, particularly Part 39 - 105 concerning the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, was enacted to ensure the safety and reliability of aircraft operating within Australia. One specific instance of this legislation is the AD/BAe 146/51, which addresses the electrical power dual lead-acid battery installation for British Aerospace BAe 146 series aeroplanes. This directive was introduced to rectify a potential safety issue identified with certain aircraft models, ensuring that the wiring configuration is accurate to prevent premature battery discharge and to maintain the necessary emergency electrical power. The directive requires compliance in accordance with the Avro International Aerospace Mandatory Inspection Service Bulletin S.B.24-107 dated 25 January 1995, with an extended compliance period of approximately two months beyond the initial CAA(UK) AD 005-01-95 requirement. This extension aims to ensure thorough adherence and safety across all applicable aircraft.
The Civil Aviation Regulations 1998, as amended and enforced by the Civil Aviation Safety Authority, represent a comprehensive legislative framework designed to uphold the highest safety standards in Australian civil aviation. The specific directive AD/BAe 146/51, focusing on the electrical power dual lead-acid battery installation for BAe 146 series aeroplanes, illustrates the meticulous attention to detail and proactive measures taken to address potential safety gaps. This legislative instrument not only mandates adherence to specific inspection and installation standards but also extends compliance timelines to ensure all affected aircraft are brought up to the required safety specifications, thereby protecting both crew and passengers.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 – 105, pertains to the Civil Aviation Safety Authority’s schedule of airworthiness directives, with AD/BAe 146/51 addressing the electrical power dual lead acid battery installation in British Aerospace BAe 146 Series Aeroplanes. This regulation applies to all BAe 146 series aircraft equipped with a dual lead-acid battery installation, a modification introduced by BAe through Modification HCM40028B or D. The requirement necessitates compliance with Avro International Aerospace's Mandatory Inspection Service Bulletin S.B.24-107 dated 25 January 1995, referencing CAA(UK) AD 005-01-95. Compliance with these directives must be achieved prior to 30 June 1995. The directive arises from reports indicating that the two-way link between terminals 'D8' and 'D9' on terminal block 'D' might not be installed correctly in some aircraft, potentially causing premature battery discharge. The primary aim is to ensure the aircraft’s wiring configuration is correct, thereby preserving battery charge to meet emergency electrical power requirements.
Key Provisions
The main operative section of this legislation is AD/BAe 146/51, which pertains to the electrical power dual lead-acid battery installation in British Aerospace BAe 146 Series Aeroplanes (section 105). This section mandates that all BAe 146 series aircraft equipped with a dual lead-acid battery installation must comply with the action outlined in Avro International Aerospace Mandatory Inspection Service Bulletin S.B.24-107 dated 25 January 1995. The directive addresses a reported issue where the two-way link between terminals 'D8' and 'D9' on terminal block 'D' might be missing, potentially causing premature battery discharge. This could compromise the aircraft's ability to maintain sufficient emergency electrical power.
The Civil Aviation Safety Authority (CASA) imposes several obligations on the entities governed by this Act. Primarily, these entities must ensure that the wiring configuration of their BAe 146 series aircraft is correct and that the two-way link between the specified terminals is properly installed. Additionally, compliance with the aforementioned inspection bulletin must be achieved before 30 June 1995, as noted in the CAA(UK) AD 005-01-95. This compliance period was extended by approximately two months to provide adequate time for the necessary inspections and rectifications.
Failure to comply with the requirements set out in AD/BAe 146/51 could result in serious safety implications. While the specific civil or criminal consequences are not detailed in the text, non-compliance with CASA directives generally can lead to significant penalties. Such penalties may include fines, suspension of airworthiness certificates, and other regulatory actions that could disrupt operations. The exact penalties would depend on the severity of the breach and the specific provisions of the Civil Aviation Regulations 1998, but they are likely to be substantial given the critical nature of maintaining aircraft electrical systems for safety.