Commonwealth legislation

AD/EMB-120/39 - APU Firewall

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires all Embraer EMB-120 aircraft to have a discovered unsealed opening in the APU firewall corrected by following Embraer Service Bulletin No. 120-53-0080 (or a later Civil Aviation Safety Authority‑approved revision). It imposes a compliance deadline (4,000 flight hours or 2 years after 27 October 2005), so aircraft owners/operators must arrange inspection and repair within that window to restore the firewall’s isolating function.

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Current sections

Direct links to the current provisions in AD/EMB-120/39 - APU Firewall.

Embraer EMB-120 (Brasilia) Series Aeropl

Embraer EMB-120 (Brasilia) Series Aeroplanes

AD/EMB-120/39	APU Firewall	11/2005

Applicability:	All Model EMB-120 aircraft.
Requirement:	Action in accordance with Embraer Service Bulletin No. 120-53-0080 original issue, or later CTA approved revision.Note: CTA AD 2005-08-03 Amdt 39-1087 refers.
Compliance:	Within 4,000 flight hours or 2 calendar years after 27 October 2005, whichever occurs first.
	This Airworthiness Directive becomes effective on 27 October 2005.
Background:	During production, the manufacturer discovered that an opening in the APU firewall was not sealed. This condition, if not corrected, will compromise the isolating function of the firewall.

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David Villiers
Delegate of the Civil Aviation Safety Authority

15 September 2005

AD/EMB-120/39

APU Firewall

11/2005

Source text

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

Embraer EMB-120 (Brasilia) Series Aeropl Embraer EMB-120 (Brasilia) Series Aeroplanes

Embraer EMB-120 (Brasilia) Series Aeroplanes

AD/EMB-120/39	APU Firewall	11/2005

Applicability:	All Model EMB-120 aircraft.
Requirement:	Action in accordance with Embraer Service Bulletin No. 120-53-0080 original issue, or later CTA approved revision.Note: CTA AD 2005-08-03 Amdt 39-1087 refers.
Compliance:	Within 4,000 flight hours or 2 calendar years after 27 October 2005, whichever occurs first.
	This Airworthiness Directive becomes effective on 27 October 2005.
Background:	During production, the manufacturer discovered that an opening in the APU firewall was not sealed. This condition, if not corrected, will compromise the isolating function of the firewall.

AD/EMB-120/39 - APU Firewall

Plain English Summary

Deep dive

Current sections

Embraer EMB-120 (Brasilia) Series Aeroplanes

Embraer EMB-120 (Brasilia) Series Aeroplanes

AD/EMB-120/39

AD/EMB-120/39

APU Firewall

APU Firewall

11/2005

11/2005

Source text

Embraer EMB-120 (Brasilia) Series Aeropl Embraer EMB-120 (Brasilia) Series Aeroplanes

Embraer EMB-120 (Brasilia) Series Aeroplanes

AD/EMB-120/39 AD/EMB-120/39

AD/EMB-120/39

APU Firewall APU Firewall

APU Firewall

11/2005 11/2005

11/2005