Commonwealth legislation

AD/HS 125/116 - Standby Inverter Cover

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

What this does: This is a mandatory safety instruction for owners and operators of British Aerospace BAe 125 series aircraft.

What you must do: Follow the maintenance procedures outlined in British Aerospace Service Bulletin SB 24-279-3255A (dated 16 November 1990). This document contains specific technical instructions about the standby inverter cover.

Why it matters: The standby inverter is a backup electrical power system. Without this fix, condensation (moisture) can get inside the inverter and cause it to fail. Since this is a backup power source, failure could be dangerous if the main aircraft electrical systems stop working.

Who decided this: The UK Civil Aviation Authority classified the service bulletin as mandatory, and Australia's Civil Aviation Safety Authority (CASA) agrees this action is necessary for air safety.

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Current sections

Direct links to the current provisions in AD/HS 125/116 - Standby Inverter Cover.

AD/HS 125/116 - Standby Inverter Cover

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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 125/116 Standby Inverter Cover 3/91

Applicability: As detailed in the Requirement Document.

Requirement: Action in accordance with BAe SB 24-279-3255A dated 16 November 1990.

Note: Compliance with this SB is classified mandatory by the CAA (UK).

Compliance: As specified in the Requirement Document.

Background: Action in accordance with this AD is considered mandatory in order to reduce the possibility of the standby inverter being contaminated by condensation.

Source text

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