Commonwealth legislation

AD/DO 328/15 - Relief Restrictor Valve

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Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

This Airworthiness Directive requires operators of the listed Dornier 328‑100 aeroplanes fitted with relief restrictor valve P/N ZRV87‑2 to replace those valves with P/N ZRV87‑3, using Dornier Service Bulletin SB‑328‑27‑243 (or a later LBA‑approved revision). The replacement must be completed before the issue of an Australian Certificate of Airworthiness.

The measure responds to higher internal leakage in the older valve that, with a separate failure, could unlock ground spoiler actuators. Aircraft owners/operators pay for parts and installation; the Civil Aviation Safety Authority (delegate) enforces compliance.

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Current sections

Direct links to the current provisions in AD/DO 328/15 - Relief Restrictor Valve.

Dornier 328 Series Aeroplanes

AD/DO 328/15	Relief Restrictor Valve	1/2006

Applicability:	Dornier 328-100 aeroplanes serial numbers: 3016, 3024, 3026, 3027, 3031, 3034, 3042, 3046, 3049, 3054, 3062, 3066, 3067, 3069, 3071, 3074, 3078 up to 3083, 3085, 3086, 3090 up to 3098 fitted with relief restrictor valve P/N ZRV87-2.
Requirement:	Unless previously accomplished, replace the relief restrictor valves P/N ZRV87-2 with new valves P/N ZRV87-3 in accordance with Dornier 328 Service Bulletin No. SB-328-27-243 Revision 1 dated 18 December 1997 or later LBA approved revision.Note: LBA AD 1998-046 refers.
Compliance:	Prior to the issue of an Australian C of A.
	This Airworthiness Directive becomes effective on 19 January 2006.
Background:	On aircraft with active ground spoilers, the higher internal leakage of the P/NZRV87-2 valve in combination with an additional failure could result in unlocking of the ground spoiler actuators.

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James Coyne
Delegate of the Civil Aviation Safety Authority

29 November 2005

AD/DO 328/15

Relief Restrictor 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 328/15	Relief Restrictor Valve	1/2006

Applicability:	Dornier 328-100 aeroplanes serial numbers: 3016, 3024, 3026, 3027, 3031, 3034, 3042, 3046, 3049, 3054, 3062, 3066, 3067, 3069, 3071, 3074, 3078 up to 3083, 3085, 3086, 3090 up to 3098 fitted with relief restrictor valve P/N ZRV87-2.
Requirement:	Unless previously accomplished, replace the relief restrictor valves P/N ZRV87-2 with new valves P/N ZRV87-3 in accordance with Dornier 328 Service Bulletin No. SB-328-27-243 Revision 1 dated 18 December 1997 or later LBA approved revision.Note: LBA AD 1998-046 refers.
Compliance:	Prior to the issue of an Australian C of A.
	This Airworthiness Directive becomes effective on 19 January 2006.
Background:	On aircraft with active ground spoilers, the higher internal leakage of the P/NZRV87-2 valve in combination with an additional failure could result in unlocking of the ground spoiler actuators.

AD/DO 328/15 - Relief Restrictor Valve

Plain English Summary

Deep dive

Current sections

Dornier 328 Series Aeroplanes

Dornier 328 Series Aeroplanes

AD/DO 328/15

AD/DO 328/15

Relief Restrictor Valve

Relief Restrictor Valve

1/2006

1/2006

Source text

Dornier 328 Series Aeroplanes Dornier 328 Series Aeroplanes

Dornier 328 Series Aeroplanes

AD/DO 328/15 AD/DO 328/15

AD/DO 328/15

Relief Restrictor Valve Relief Restrictor Valve

Relief Restrictor Valve

1/2006 1/2006

1/2006