Commonwealth legislation

AD/HS 125/148 - Electrical Power Diode Connections

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

This airworthiness directive requires operators of specified BAe 125/Hawker 800/1000 aircraft to inspect the soldered diode connections on panels ZL (800 series) or ZK (1000 series) and, if a joint is unacceptable, resolder it following Hawker Raytheon Mandatory Service Bulletin SB 24-317 (22 Dec 1994). The stated purpose is to remove intermittent faults in engine-starting and battery-emergency circuits. Compliance must be completed by 31 August 1995, imposing an inspection/repair cost and possible aircraft downtime for operators.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/HS 125/148 - Electrical Power Diode Connections.

AD/HS 125/148 - Electrical Power Diode Connections

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 125/148 Electrical Power Diode Connections 4/95

Applicability: BAe 125 Series 800A & B, 1000A & B, Hawker 800 and 1000 aircraft identified in Hawker Raytheon Corporate Jets Mandatory Service Bulletin SB 24-317 dated

22 December 1994.

Requirement: Inspect the soldered diode connections on panels ZL (800 Series) or ZK (1000 Series) for integrity of the soldered joint and if necessary, resolder any unacceptable connections in accordance with the Accomplishment Instructions of Hawker Raytheon Corporate Jets Mandatory Service Bulletin SB 24-317 dated 22 December 1994.

Note: This Service Bulletin has been classified as Mandatory by the CAA(UK).

Compliance: Prior to 31 August 1995.

Background: Hawker Raytheon has received reports of imperfect soldered connections in the engine starting and battery emergency control circuits, which have led to intermittent fault symptoms in these systems. Compliance with this Directive is designed to eliminate these intermittent fault systems. The CAA(UK) compliance date is extended by one calendar month for Australian registered aircraft.

Source text

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

1 AD/HS 125/148 - Electrical Power Diode Connections