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AD/DO 328/8 - Proximity Switch Electrical Unit
Dornier 328 Series AeroplanesDornier 328 Series Aeroplanes
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Dornier 328 Series Aeroplanes
| AD/DO 328/8 | Proximity Switch Electrical Unit | 1/2006 |
|---|
| Applicability: | Model 328-100 aeroplanes all serial numbers equipped with a landing gear proximity switch electrical unit (PSEU) part number (P/N) 8-700-03 or 8-700-04 installed. |
|---|---|
| Requirement: | If not previously accomplished, remove PSEUs P/N 8-700-03 or 8-700-04 and install a new PSEU P/N 8-700-04 Mod A in accordance with the Accomplishment Instructions of Dornier Service Bulletins SB-328-32-248 Revision 1 dated22 April 1998. |
| Note 1: For operators removing a P/N 8-700-03 unit, Dornier SB-328-32-143 must be performed prior to installation of a new unit. | |
| Note 2: A new PSEU P/N 8-700-05 may be installed as an alternate to the installation of a PSEU P/N 8-700-04 Mod A. | |
| Note 3: LBA AD 1998-137/2 refers. | |
| Compliance: | Within 30 days after the effective date of this Directive. |
| This Airworthiness Directive becomes effective on 19 January 2006. | |
| Background: | The German Luftfahrt-Bundesamt (LBA) has received reports of intermittent shutoff of control circuits within the PSEU preventing, in some instances, normal extension of the landing gear. Investigations have determined the cause to be a manufacturing fault within the PSEU. This Directive requires the replacement of the faulty PSEUs. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
29 November 2005