Commonwealth legislation

AD/DO 328/61 - Hydraulics Leakage and Functional Checks

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires operators of Dornier 328‑100 aeroplanes to carry out specific hydraulic leakage and functional tests (major internal leakage, return‑filter bypass valve, and shut‑off valve with bypass) per AMM TR 29‑087 and TR 29‑088. If an aircraft has already completed a C‑Check without these tests they must be done by the next A‑Check; otherwise they may be deferred until the next scheduled C‑Check. The directive responds to possible high internal leakage and pressure build‑up in the ground‑spoiler hydraulic supply system; operators bear the maintenance cost and authorised maintenance organisations perform the work under CASA oversight.

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Current sections

Direct links to the current provisions in AD/DO 328/61 - Hydraulics Leakage and Functional Checks.

Dornier 328 Series Aeroplanes

AD/DO 328/61	Hydraulics Leakage and Functional Checks	6/2006

Applicability:	Dornier 328-100 aeroplanes.
Requirement:	Perform the major internal leakage test, the bypass valve of the return filter element test and the shut-off valve with bypass test according to section E, F(3) and F(4) of AMM TR 29-087 and TR 29-088 as applicable.Note: LBA AD 1997-189/2 dated 18 June 1998 refers.
Compliance:	For aircraft that have previously completed a C-Check inspection but have not complied with the above mentioned AMM TRs this AD must be performed not later than at the next A-Check after the effective date of this AD.For aircraft that have complied with the above mentioned AMM TRs or aircraft that have not yet performed a first C-Check no action is required until the next scheduled C-Check.
	This Airworthiness Directive becomes effective on 8 June 2006.
Background:	This AD is in response to possible high internal leakage rates within the components of the ground spoiler hydraulic supply system and build-up of pressure in the bypass valve return line.

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James Coyne
Delegate of the Civil Aviation Safety Authority

28 April 2006

AD/DO 328/61

Hydraulics Leakage and Functional Checks

6/2006

Source text

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

Dornier 328 Series Aeroplanes Dornier 328 Series Aeroplanes

Dornier 328 Series Aeroplanes

AD/DO 328/61	Hydraulics Leakage and Functional Checks	6/2006

Applicability:	Dornier 328-100 aeroplanes.
Requirement:	Perform the major internal leakage test, the bypass valve of the return filter element test and the shut-off valve with bypass test according to section E, F(3) and F(4) of AMM TR 29-087 and TR 29-088 as applicable.Note: LBA AD 1997-189/2 dated 18 June 1998 refers.
Compliance:	For aircraft that have previously completed a C-Check inspection but have not complied with the above mentioned AMM TRs this AD must be performed not later than at the next A-Check after the effective date of this AD.For aircraft that have complied with the above mentioned AMM TRs or aircraft that have not yet performed a first C-Check no action is required until the next scheduled C-Check.
	This Airworthiness Directive becomes effective on 8 June 2006.
Background:	This AD is in response to possible high internal leakage rates within the components of the ground spoiler hydraulic supply system and build-up of pressure in the bypass valve return line.

James Coyne
Delegate of the Civil Aviation Safety Authority

28 April 2006

AD/DO 328/61 - Hydraulics Leakage and Functional Checks

Plain English Summary

Deep dive

Current sections

Dornier 328 Series Aeroplanes

Dornier 328 Series Aeroplanes

AD/DO 328/61

AD/DO 328/61

Hydraulics Leakage and Functional Checks

Hydraulics Leakage and Functional Checks

6/2006

6/2006

Source text

Dornier 328 Series Aeroplanes Dornier 328 Series Aeroplanes

Dornier 328 Series Aeroplanes

AD/DO 328/61 AD/DO 328/61

AD/DO 328/61

Hydraulics Leakage and Functional Checks Hydraulics Leakage and Functional Checks

Hydraulics Leakage and Functional Checks

6/2006 6/2006

6/2006