Commonwealth legislation

AD/HS 125/73 Amdt 1 - Fouling of Pipe Installations

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

2/10 complexity

Requires inspection, per British Aerospace Service Bulletin 53-60 (8 Nov 1985), of the area above the left upper forward corner of the ventral fuel tank on BAe 125 Series 800 aeroplanes with ventral tanks for fouling between fuel, oxygen and hydraulic pipes. It applies to operators/owners of those aircraft and must be complied with before further flight after 31 Jan 1986. The amendment (effective 23 Apr 1998) reissues the directive with minor additions (references the CAA(UK) AD and identifies the service bulletin). Fouling could create a hazardous condition.

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 125/73 Amdt 1 - Fouling of Pipe Installations.

AD/HS 125/73 Amdt 1 - Fouling of Pipe Installations

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 125/73

Amdt 1

Fouling of Pipe Installations 5/98

Applicability: All model 125 Series 800 aeroplanes fitted with ventral tanks.

Requirement: If not previously accomplished, inspect the area above the left hand upper forward corner of the ventral fuel tank for signs of fouling between fuel, oxygen and hydraulic pipes in accordance with British Aerospace 125 Series Service Bulletin 53-60 dated

8 November 1985.

Note: CAA(UK) AD 006-11-85 refers.

Compliance: The compliance remains unchanged as “Before further flight after 31 January 1986”.

This amendment becomes effective on 23 April 1998.

Background: Fouling is possible between fuel, oxygen and hydraulic pipes which could lead to a hazardous condition developing.

This directive has been reissued at amendment 1 following the return of a BAe 125 Series 800 aeroplane to the Australian register and effectively remains unchanged, containing some minor additions such as referencing the CAA(UK) airworthiness directive and identifying the service bulletin.

The original issue of this airworthiness directive became effective on 31 January 1986.

Source text

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

1 AD/HS 125/73 Amdt 1 - Fouling of Pipe Installations