1AD/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.