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EU-2011-0021
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1. date of this AD incorporate a temporary revision to the Flight Manual and install a placard in accordance with Aquila Service Bulletin SB AT01 020 2 Within 2 months after the effective date of this AD perform a calibration of the fuel quantity indication system in accordance with Maintenance Manual MM AT01 1020 100 Revision 19 3 After the accomplishment of the initial calibration as required by paragraph 2 of this AD remove the temporary revision from the Flight Manual and remove the placard from the aeroplane Aquila Service Bulletin SB AT01 020 Issue 1 dated 29 November 2010 Maintenance Manual MM AT01 1020 100 Revision 19 dated 25 November 2010 The use of later approved revisions of these documents is acceptable for compliance with the requirements of this AD If requested and appropriately substantiated EASA can approve Alternative Methods of Compliance for this AD The required actions and the risk allowance have granted the issuance of a Final AD with Request for Comments postponing the public consultation process after publication Enquiries regarding this AD should be referred to the Airworthiness Directives Safety Management amp Research Section Certification Directorate EASA E mail ADS easa europa eu For any question concerning the technical content of the requirements in this AD please contact AQUILA Aviation by Excellence AG Flugplatz 14959 Schonhagen Germany TRADUCTION DE COURTOIS
2. sa sp cificit nationale exposer le probl me aupr s du d partement Navigabilit A ronef d OSAC par courriel contact osac aero ou par fax au 01 46 42 65 39 ou aupr s du bureau concern du d partement certification produits de l EASA Cette AD est exigible au titre du r glement Europ en 1702 2003 ou de la D cision n 2 2003 de l EASA EASA O AIRWORTHINESS DIRECTIVE AD No 2011 0021 Date 07 February 2011 Note This Airworthiness Directive AD is issued by EASA acting in accordance with Regulation EC No 216 2008 on behalf of the European Community its Member States and of the European third countries that participate in the activities of EASA under Article 66 of that Regulation This AD is issued in accordance with EC 1702 2003 Part 21A 3B In accordance with EC 2042 2003 Annex Part M A 301 the continuing airworthiness of an aircraft shall be ensured by accomplishing any applicable ADs Consequently no person may operate an aircraft to which an AD applies except in accordance with the requirements of that AD unless otherwise specified by the Agency EC 2042 2003 Annex I Part M A 303 or agreed with the Authority of the State of Registry EC 216 2008 Article 14 4 exemption Type Approval Holder s Name Type Model designation s AQUILA Aviation by Excellence AG ATO1 aeroplanes TCDS Number EASA A 527 Foreign AD Not Applicable Supersedure None Fuel Quantity Indication System O
3. IE de la DIRECTIVE de NAVIGABILITE de l EASA de r f rence 2011 0021 AQUILA AVIATION BY EXCELLENCE AG Avions AQUILA ATO1 1 APPLICABILITE La pr sente Directive de Navigabilit AD concerne les avions AQUILA ATO1 du num ro de s rie ATA01 100 ATAO1 222 2 RAISON Une diff rence significative entre l indication de quantit de carburant et le niveau r el de carburant a t observ e lors du remplissage en carburant d un nouveau AT01 avec de l AVGAS 100LL apr s une calibration basique pour du MOGAS L indication de quantit de carburant tait plus basse que la quantit r elle dans les r servoirs d aile Les investigations ont montr que dans le cas inverse de remplissage avec du MOGAS pour une calibration basique pour de l AVGAS 100LL l indication de quantit carburant est sup rieure la quantit de carburant r elle dans les r servoirs d aile Cette condition si non d tect e et corrig e peut causer un arr t en vol moteur avec de possibles cons quences pour l a ronef et ses occupants Le d tenteur du certificat de navigabilit a pris en compte cette situation dans le bulletin de service SB AT01 020 Pour les raisons d crites ci dessus cette AD exige les actions comme d crites dans le BS SB AT01 020 Appliquer les proc dures op rationnelles s res comme solution d int rim Etablir la proc dure de calibration correcte pour le syst me d indication de la quantit de carbura
4. OSAC Avis d mission d une Directive de Navigabilit AD par l EASA European Aviation Safety Agency i i l autorit primaire d un mat riel tranger Les examens ou modifications d crits ou rappel s ci dessous sont imp ratifs La non application des exigences contenues dans la Directive de Navigabilit cit e ci dessous entra ne l inaptitude au vol de l a ronef concern Envoi 03 2011 du 09 f vrier 2011 Directive de Navigabilit de l EASA de r f rence 2011 0021 AQUILA AVIATION BY EXCELLENCE AG Avions AQUILA ATO1 Syst me d indication de quantit carburant Limitation op rationnelle Modification Nota pour les exploitants et organismes d entretien d a ronefs inscrits au registre fran ais Si l AD jointe invite un contact vers l autorit primaire de l AD contacter le bureau concern du d partement certification produits de l EASA Si pour l ex cution d une t che donn e l AD jointe se r f re une qualification de personnel r pondant une r glementation nationale il est possible de faire intervenir pour cette t che du personnel de qualification quivalente accept e dans l Union Europ enne Si l AD jointe se r f re une donn e de navigabilit ou une instruction pour le maintien de la navigabilit Manuel de Vol Manuel de Maintenance qui n est pas celle approuv e ou pas celle en vigueur en France ou si l AD jointe pr sente une difficult d application li e
5. nt et Exiger une calibration selon la proc dure correcte comme action terminale 3 ACTIONS IMPERATIVES ET DELAIS D APPLICATION Les mesures suivantes sont rendues imp ratives sauf si d j accomplies 3 1 Dans les 14 jours compter de la date d entr e en vigueur de cette AD incorporer la r vision temporaire du Manuel de Vol et installer une tiquette selon le bulletin de service SB AT01 020 3 2 Dans les 2 mois compter de la date d entr e en vigueur de cette AD effectuer une calibration de l indicateur de quantit carburant selon le manuel d entretien MM AT01 1020 100 r vision 19 3 3 Apr s l accomplissement de la calibration initiale comme exig au 3 2 de cette AD supprimer la r vision temporaire du manuel de vol et l tiquette de l a ronef 4 DOCUMENTS DE REFERENCE Bulletin Service AQUILA SB AT01 020 dition 1 du 29 novembre 2010 Manuel d entretien MM AT01 1020 100 r vision 19 du 25 novembre 2010 ou toute r vision ult rieure approuv e 5 DATE D ENTREE EN VIGUEUR 21 f vrier 2011
6. perational Limitation Modification Manufacturer s AQUILA Aviation by Excellence AG Applicability Model AT01 serial numbers AT01 100 up to AT01 222 Reason A significant discrepancy between the indicated fuel level and the actual fuel level has been observed during fuelling of a new AT01 aeroplane with AVGAS 100LL after basic calibration with MOGAS The indicated fuel amount was lower than the actual amount in the wing tanks Subsequent investigation revealed that in the opposite case fuelling with MOGAS after basic calibration with AVGAS 100LL the indicated fuel amount is higher than the actual fuel amount in the wing tanks This condition if not detected and corrected can cause an in flight engine shut down possibly resulting in damage to the aeroplane and injury to occupants The TC holder has addressed this issue by Service Bulletin SB AT01 020 For the reasons mentioned above this AD requires the actions as described in the SB AT01 020 establish safe operating procedures as an interim solution establish a correct calibration procedure for the fuel quantity indication system and require calibration in accordance with correct procedure as a terminating action EASA Form 110 ATA 28 Effective Date Required action s and Compliance Time s Ref Publications Remarks EASA Form 110 21 February 2011 Required as indicated unless already accomplished 1 Within 14 days after the effective
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