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AD/DO 328/66 - Hydraulic System Modifications
Dornier 328 Series AeroplanesDornier 328 Series Aeroplanes
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Dornier 328 Series Aeroplanes
| AD/DO 328/66 | Hydraulic System Modifications | 10/2006 |
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| Applicability: | Dornier 328-100 aeroplanes with the following serial numbers: 3016, 3024, 3026, 3027, 3031, 3034, 3042, 3046, 3049, 3054, 3062, 3066, 3067, 3069, 3071, 3074, 3078 up to 3083, 3085 and 3086 with active ground spoiler installed (option 040-001). |
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| Requirement: | 1. Carry out installation of additional hydraulic lines together with an additional shutoff valve; or2. Replace the hydraulic line and removal of the shut off valve in accordance Dornier 328 SB-328-29-269.Note: LBA AD 1998-031/2 dated 10 September 1998 refers. |
| Compliance: | Within 30 days after the effective date of this AD unless previously accomplished. |
| This Airworthiness Directive becomes effective on 28 September 2006. | |
| Background: | Calculations have shown that it is theoretical possible for ground spoiler actuators to unlock by high pressure in the hydraulic return line. This problem is covered bySB-328-29-237. The new SB-328-29-269 describes a second technical solution as an alternate means of compliance for the SB-328-29-237. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
14 August 2006