EASA AD No : 2014-0115

TE.CAP.00110-003 © 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.: 2014-0115

Date: 13 May 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 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].

Design Approval Holder’s Name :

DASSAULT AVIATION

Type/Model designation(s) :

Falcon 2000EX and Falcon 900EX aeroplanes

TCDS Numbers: EASA.A.008 and EASA.A.062

Foreign AD: Not applicable

Supersedure: None

ATA 57 Wings – Slat Extension Mechanical Stop Assembly – Modification

Manufacturer(s): Dassault Aviation

Applicability: Falcon 2000EX aeroplanes, all serial numbers (S/N) on which Dassault 

Aviation modification (Mod) M2846 has been embodied, except those on 

which Dassault Aviation Mod M3678 has been embodied in production.

Falcon 900EX aeroplanes, all S/N on which Dassault Aviation Mod M5281

has been embodied, except those on which Dassault Aviation Mod M5870 

has been embodied in production.

Reason: After landing, an aeroplane experienced a significant fuel leakage at the 

middle position of the left outboard slat. Investigations showed that the fuel 

spillage originated in a structural cap, which had been punctured by a broken 

locking pin of the slat extension mechanical stop.

A design review revealed that the locking pin could become loose due to an

incorrect installation combined with a non-fault-tolerant design.

This condition, if not corrected, may lead to a significant fuel leak, possibly

resulting in an uncontained fire.

To address this potential unsafe condition, Dassault Aviation developed a 

modification of the slat extension mechanical stop assembly (Mod M3678 for 

F2000EX aeroplanes and Mod M5870 for F900EX aeroplanes) with the 

purpose to increase its robustness with regards to possible mishandling on 

production or during maintenance. Dassault Aviation also published Service 

Bulletin (SB) F2000EX-344 and SB F900EX-450, for embodiment in service 

of that modification.

For the reasons described above, this requires modification of the slat 
EASA AD No : 2014-0115

TE.CAP.00110-003 © European Aviation Safety Agency. All rights reserved. 2/2

Proprietary document. Copies are not controlled. Confirm revision status through the EASA-Internet/Intranet.

extension mechanical stop assembly.

Effective Date: 27 May 2014

Required Action(s) 

and Compliance 

Time(s):

Required as indicated, unless accomplished previously:

Within 9 months or 440 flight hours, whichever occurs first after the effective 

date of this AD, modify the slat extension mechanical stop assembly in 

accordance with the accomplishment instructions of Dassault Aviation SB

2000EX-344 or Dassault Aviation SB F900EX-450, as applicable to 

aeroplane.

Ref. Publications: Dassault Aviation SB F2000EX-344, initial issue, dated 10 March 2014.

Dassault Aviation SB F900EX-450, initial issue, dated 10 March 2014.

The use of later approved revisions of these documents 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 24 March 2014 as PAD 14-054 for consultation 

until 21 April 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 

this AD, contact your Dassault Falcon Technical Assistance:

 For Europe, Middle East and Africa based operators:

Hot Line: (33) 1 47 11 37 37 / Fax: (33) 1 47 11 89 49.

 For USA, Canada and Mexico based operators:

Help Desk: (1) 800-2FALCON (2325266) / Fax: (1) 201 541 4740.

 All other areas:

Help Desk: (1) 201 541 4747 / Fax: (1) 201 541 4740.