Commonwealth legislation

AD/DO 328/23 - Roll Spoiler Double Shuttle Valve

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires operators of Dornier 328‑100 aeroplanes (serial numbers 3005–3119) to replace the roll‑spoiler double shuttle valve in accordance with Dornier Alert Service Bulletin SB‑328‑27‑310 (Requirement). Compliance is required within 30 days of the AD’s effective date (19 January 2006) (Compliance).

The measure responds to hydraulic leakage caused when the valve piston can stay mid‑position and let high pressure reach the low‑pressure side of the actuator (Background). Operators fund parts and maintenance; the Civil Aviation Safety Authority enforces the deadline.

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Current sections

Direct links to the current provisions in AD/DO 328/23 - Roll Spoiler Double Shuttle Valve.

Dornier 328 Series Aeroplanes

AD/DO 328/23	Roll Spoiler Double Shuttle Valve	1/2006

Applicability:	Dornier 328-100 aeroplanes serial number 3005 through 3119 inclusive.
Requirement:	Unless previously accomplished, replace the roll spoiler double shuttle valve in accordance with Dornier 328 Alert Service Bulletin No. SB-328-27-310 dated10 June 2000.Note: LBA AD 1998-479/3 refers.
Compliance:	Within 30 days after the effective date of this AD.
	This Airworthiness Directive becomes effective on 19 January 2006.
Background:	Leakage was found from a roll spoiler actuator housing. Further investigation showed that the piston of the double shuttle valve had temporarily remained in the middle position allowing high pressure to reach the low pressure side of the roll spoiler actuator; this resulted in deformation of the housing cap and subsequent hydraulic fluid loss. This AD requires the replacement of the double shuttle valve to prevent hydraulic fluid loss.

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James Coyne
Delegate of the Civil Aviation Safety Authority

29 November 2005

AD/DO 328/23

Roll Spoiler Double Shuttle Valve

1/2006

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 328/23	Roll Spoiler Double Shuttle Valve	1/2006

Applicability:	Dornier 328-100 aeroplanes serial number 3005 through 3119 inclusive.
Requirement:	Unless previously accomplished, replace the roll spoiler double shuttle valve in accordance with Dornier 328 Alert Service Bulletin No. SB-328-27-310 dated10 June 2000.Note: LBA AD 1998-479/3 refers.
Compliance:	Within 30 days after the effective date of this AD.
	This Airworthiness Directive becomes effective on 19 January 2006.
Background:	Leakage was found from a roll spoiler actuator housing. Further investigation showed that the piston of the double shuttle valve had temporarily remained in the middle position allowing high pressure to reach the low pressure side of the roll spoiler actuator; this resulted in deformation of the housing cap and subsequent hydraulic fluid loss. This AD requires the replacement of the double shuttle valve to prevent hydraulic fluid loss.

AD/DO 328/23 - Roll Spoiler Double Shuttle Valve

Plain English Summary

Deep dive

Current sections

Dornier 328 Series Aeroplanes

Dornier 328 Series Aeroplanes

AD/DO 328/23

AD/DO 328/23

Roll Spoiler Double Shuttle Valve

Roll Spoiler Double Shuttle Valve

1/2006

1/2006

Source text

Dornier 328 Series Aeroplanes Dornier 328 Series Aeroplanes

Dornier 328 Series Aeroplanes

AD/DO 328/23 AD/DO 328/23

AD/DO 328/23

Roll Spoiler Double Shuttle Valve Roll Spoiler Double Shuttle Valve

Roll Spoiler Double Shuttle Valve

1/2006 1/2006

1/2006