Commonwealth legislation

AD/HS 125/133 Amdt 2 - Electrical Power - Battery and Emergency Contactors

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Jurisdiction

Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

Mandates specified British Aerospace BAe 125 Series 700 and Series 800 aircraft be modified to alter their battery and emergency power contactors in accordance with Corporate Jets Service Bulletin SB.24-293-3501A Revision 2, to be completed by 31 December 1993. Applies to owners/operators of those aircraft, who must complete the mandated work; the directive was issued after an in‑service battery overheat (short to earth) and aims to improve electrical system integrity. The CAA(UK) has classified the Service Bulletin as mandatory.

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Current sections

Direct links to the current provisions in AD/HS 125/133 Amdt 2 - Electrical Power - Battery and Emergency Contactors.

AD/HS 125/133 Amdt 2 - Electrical Power - Battery and Emergency Contactors

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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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.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/HS 125/133 Amdt 2 - Electrical Power - Battery and Emergency Contactors