Commonwealth legislation

AD/HS 125/154 Amdt 1 - Engine Pylon Firewall

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legislative instrument

Plain English Summary

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This Airworthiness Directive requires owners/operators of BAe 125-800A/-800B, Hawker 800 and Hawker 800XP aircraft to fill any unused tooling holes in the left and right engine pylon firewalls with firewall sealant, following Raytheon Service Bulletin SB.54-1-3815B Revision 1. CASA (the delegate) mandates the work to prevent a possible route for an engine fire to reach the fuselage and inboard flammable lines, and requires compliance before 13 January 2001 (Applicability; Requirement; Compliance).

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AD/HS 125/154 Amdt 1 - Engine Pylon Firewall

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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

AIRWORTHINESS DIRECTIVE

View image in the official source

View image in the official source
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/HS 125/154 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/HS 125/154

Amdt 1

Engine Pylon Firewall 7/2000

Applicability: Model BAe 125-800A and BAe 125-800B, Model Hawker 800, and Model Hawker 800XP series aircraft; as listed in Raytheon Service Bulletin SB.54-1-3815B, Revision 1, dated May 1998.

Requirement: Fill all unused tooling holes in the left and right engine pylon firewalls with firewall sealant, in accordance with Raytheon Service Bulletin SB.54-1-3815B, Revision 1.

Note: FAA AD 2000-08-07 Amdt 39-11693 refers.

Compliance: Before 13 January 2001, unless already accomplished. This Amendment becomes effective on 13 July 2000.

Background: Reports were received of aircraft with two unused (open) tooling holes on the left hand and right hand engine pylon firewalls which may permit an engine fire moving to the fuselage, and to the lines that carry flammable fluid that are located inboard of the firewall.

Amendment 1 is issued in response to a new FAA AD which requires further action due to reports of additional unused tooling holes, found at locations other than those previously addressed.

The original issue of this Airworthiness Directive became effective on 15 August 1996.

View image in the official source

Bernard Malcolm Hole

Delegate of the Civil Aviation Safety Authority 2 June 2000

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 14 June 2000.

Source text

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

1 AD/HS 125/154 Amdt 1 - Engine Pylon Firewall

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

British Aerospace BAe 125 Series Aeroplanes

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/HS 125/154 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/HS 125/154

Amdt 1

Engine Pylon Firewall 7/2000

Applicability: Model BAe 125-800A and BAe 125-800B, Model Hawker 800, and Model Hawker 800XP series aircraft; as listed in Raytheon Service Bulletin SB.54-1-3815B, Revision 1, dated May 1998.

Requirement: Fill all unused tooling holes in the left and right engine pylon firewalls with firewall sealant, in accordance with Raytheon Service Bulletin SB.54-1-3815B, Revision 1.

Note: FAA AD 2000-08-07 Amdt 39-11693 refers.

Compliance: Before 13 January 2001, unless already accomplished. This Amendment becomes effective on 13 July 2000.

Amendment 1 is issued in response to a new FAA AD which requires further action due to reports of additional unused tooling holes, found at locations other than those previously addressed.

The original issue of this Airworthiness Directive became effective on 15 August 1996.

Bernard Malcolm Hole

Delegate of the Civil Aviation Safety Authority 2 June 2000

The above AD is notified in the Commonwealth of Australia Gazette on 14 June 2000.