Commonwealth legislation

AD/HS 125/114 - Generator Control Unit (GCU) Earth Wire

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This directive orders operators of the BAe 125 aircraft listed in the requirement document to carry out the work specified in BAe Service Bulletin 24-A278 by 31 January 1991 to prevent battery overheating from a possible GCU earth-connection loss.

Owners/operators fund and schedule the mandated inspections/modifications and document compliance; the rule is mandatory and intended to remove a specific electrical safety risk.

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AD/HS 125/114 - Generator Control Unit (GCU) Earth Wire

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source British Aerospace BAe 125 Series Aeroplanes

AD/HS 125/114 Generator Control Unit (GCU) Earth Wire 2/91

Applicability: All BAe 125 aircraft as listed in the Requirement document. Requirement: Action in accordance with BAe SB 24-A278.

Note: Compliance with this SB has been classified Mandatory by the UK CAA.

Compliance: Prior to 31 January 1991.

Background: Loss of GCU earth connection can result in a DC generator overvoltage which can cause battery overheat and subsequent failure.

Source text

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