EASA AD No.: 20 14 - 0 1 86

TE. CAP.0011 0 - 00 4 © European Aviation Safety Agency. All rights reserved. 1 / 2 Proprietary document. Copies are not controlled. Confirm revision status through the EASA - Internet/Intranet. 

## EASA AIRWORTHINESS DIRECTIVE

AD No . : 20 14 - 0 1 86

Date: 19 August 2014 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 EU 748/2012, Part 21.A.3B. In accordance with EC 2042/2003 Annex I, Part M.A.301, the continuing airworthiness of an aircraft shall be ensured by accomplishing any applicable ADs. Consequently, no person may ope rate an aircraft to which an AD applies, except in accordance with the requ irements 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]

. 

### Design Approval Holder’s Name: AIRBUS Type/Model designation(s): A319, A320 and A321 aeroplanes TCDS Number: EASA.A.064 F oreign AD: Not applicable Supersedure: None



### ATA 27 Flight C ontrols – Flight Computers and Sharklet C ommon G round C onnection – Modification Manufacturer(s): Airbus (formerly Airbus Industrie) Applicability: Airbus A319 - 111, A319 - 112, A319 - 113, A319 - 114, A319 - 115, A319 - 131, A319 - 132, A319 - 133, A320 - 211, A320 - 212, A320 - 214, A320 - 215, A320 - 216, A320 - 231, A320 - 232, A320 - 233, A321 - 111, A321 - 112, A321 - 131, A321 - 211, A321 - 212, A321 - 213, A321 - 231 and A321 - 232 aeroplanes, all manufacturer serial numbers on which Airbus m odification (mod) 160500 or mod 160023 has been embodied in production , and those which have been modified in service through Airbus Service Bulletin (SB) A320 - 57 - 1173 at any revision (Rev.) up to Rev. 0 4 , or Airbus SB A320 - 57 - 1186 at any revision up to Rev. 02 , or Airbus SB A320 - 57 - 1187 at original issue or at Rev. 01 , except those on which Airbus mod 156108 has been embodied in production

. Reason: During A320 Neo review, Airbus design o ffice identified that on A320 family aeroplanes equipped with s harklet s , discretes used to activate the l oad a lleviation f unction are connected on various flight computers using the same ground point. In that ca s e, the ground point segregation is no longer effective and a single failure could lead to loss of sharklet identifi cation by the flight comp uters , inducing a return to the w ing t ip f ence (no sharklet configuration) behaviour. This condition, if not corrected, could lead to reduced control of the aeroplane, depending on aeroplane configuration and flight phase. It has been determined that Airbus mod 156108 restore s the correct segregation

. However, s ince introduction of s harklet mod 160500 and mod 160023, a number of aeroplanes equipped with s harklets have been deliveredEASA AD No.: 20 14 - 0 1 86

TE. CAP.0011 0 - 00 4 © European Aviation Safety Agency. All rights reserved. 2 / 2 Proprietary document. Copies are not controlled. Confirm revision status through the EASA - Internet/Intranet. without incorporating mod 156108. In addition , m od 156108 was not included in cert a i n SB s that introduc e the sharklet device in service onto aeroplanes with a reinforced wing , previously operated with a wing tip fence

. Airbus mod 156108 ha s now been introduced into Airbus SB A320 - 57 - 1186 at R ev . 03 and will be introduced at next revisions of SB A320 - 57 - 1173 and SB A320 - 57 - 1187

. To address this potential unsafe condition, Airbus published SB A320 - 27 - 1240 for in - service installation of mod 156108

. For the reasons describe d above, this AD requires modif ication of the sharklet ground connection. Effective Date: 02 September 2014 Required A ction(s) and Compliance Time(s) : Required as indicated, unless accomplished previously: Within 24 months after the effective date of this AD, modify the sharklet ground connection in accordance with the instructions of Airbus SB A320 - 27 - 1240. Ref. Public ations: Airbus SB A320 - 27 - 1240 original issue dated 18 June 2014

. The u se of later approved revisions of thi s document is acceptable for compliance with the requirements of this AD. Remarks: 1. If requested and appropriately substantiated, EASA can approve Alternative Methods of Compliance for this AD. 2. This AD was posted on 01 July 2014 as PAD 14 - 109 for consultation until 29 July 2014

. No comments were received during the consultation period. 3. Enquiries regarding this AD should be referred to the Safety Information Section, Executive Directorate, EASA. E - mail: ADs@easa.europa.eu

. 4. For any question concerning the technical content of the requirements in t his AD, please contact: AIRBUS

– Airworthiness Office

– EIAS; Fax +33 5 61 93 44 51; E - mail: account.airworth - eas@airbus.com

.