Airbus Industrie A319, A320 and A321 Ser
Airbus Industrie A319, A320 and A321 Series Aeroplanes
Airbus Industrie A319, A320 and A321 Series Aeroplanes
| AD/A320/191 | Ram Air Turbine - Carbon Blade | 3/2006 |
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| Applicability: | AIRBUS A320 aeroplanes fitted with SUNDSTRAND RAT Part Number (P/N) 762308 installed by AIRBUS modification 27189 in production.AIRBUS A319 and A321 aeroplanes fitted with SUNDSTRAND RAT P/N 762308 installed by AIRBUS modification 25364 in production or AIRBUS Service Bulletin (SB) A320-29-1075 in service.Note 1: Aircraft on which no modification/replacement of the RAT has been performed since embodiment of AIRBUS modification 27014 (installation of the SUNDSTRAND RAT P/N 766352) or 28413 (reinstallation of the DOWTY RAT) in production are not affected by the requirements of this AD. |
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| Requirement: | Inspect the carbon blades of the RAT and carry out any rectification as necessary in accordance with AIRBUS Service Bulletin A320-29-1124 or later DGAC approved revision.Note 2: DGAC AD F-2005-212 EASA approval No. 2005-6438 dated13 December 2005 refers. |
| Compliance: | Within 600 flight hours following the effective date of this AD. |
| This Airworthiness Directive becomes effective on 16 March 2006. | |
| Background: | During routine maintenance inspections on an A321 aircraft, three chord wise cracks were found on the aft side of one RAT PN 762308 carbon blade.Investigations revealed a disorientation of carbon fibres during blade manufacturing. Such cracks could impair the blade structural integrity.This AD mandates a one time detailed visual inspection of the blades within 600 flight hours. |
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James Coyne
Delegate of the Civil Aviation Safety Authority
1 February 2006