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EASA AD No: 2010-0049

EUROCOPTER BO105LS A-3 · Service Bulletins

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Overview

This document is an Airworthiness Directive (AD) issued by EASA for the Eurocopter BO 105 LS A-3 and related helicopter models. It mandates modifications to the cyclic stick locking device to ensure continued airworthiness and prevent loss of control during takeoff.

  • AD No. 2010-0049 supersedes EASA AD 2009-0079.
  • Effective from April 2, 2010.
  • Modification of the cyclic stick locking device is required.
  • Applicable to multiple BO 105 and MBB-BK 117 helicopter models.
  • Modification must be completed within 6 months.
  • Operators must document compliance in the aircraft's operational records.
  • Failure to comply may result in loss of airworthiness.
  • Contact EASA for alternative compliance methods.

Document

Source

Originally published by gov.cz. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

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Document details

Type
·
Service Bulletins
Year
·
2010
File size
·
169 KB
Publisher
·
gov.cz
Language
·
cs
About this document
What is the EASA AD No: 2010-0049?

The EASA AD No: 2010-0049 is a service bulletins for the EUROCOPTER BO105LS A-3, dated 2010.

Where does the EASA AD No: 2010-0049 come from?

This copy of the EASA AD No: 2010-0049 was originally published by gov.cz and is hosted on Sprinkle as a free, searchable reference copy.

What year was the EASA AD No: 2010-0049 published?

The EASA AD No: 2010-0049 — the EUROCOPTER BO105LS A-3 service bulletins on file — is dated 2010.

In this document

Applicability

This AD applies to BO 105 A, C, D, LS A-1, LS A-3, S helicopters, and MBB-BK 117 A-1, A-3, A-4, B-1, B-2, C-1 helicopters, all serial numbers.

Reason

The directive addresses the risk of takeoff with a locked cyclic stick, which can lead to loss of control.

Required Actions

Operators must modify the cyclic stick locking device and amend the Rotorcraft Flight Manual as specified.

Compliance Time

Modifications must be completed within 6 months of the effective date of the AD.

Remarks

EASA can approve alternative methods of compliance upon request.

Contact Information

For technical questions, contact Eurocopter Deutschland GmbH or EASA.

Safety notes

  • Failure to comply with this AD may result in loss of airworthiness.
  • Modification is mandatory to prevent unsafe conditions.
  • Operators must ensure documentation of compliance.
  • Locked cyclic stick during takeoff can lead to loss of control.

Full document text

SEKCE TECHNICKÁ PŘÍKAZ K ZACHOVÁNÍ LETOVÉ ZPŮSOBILOSTI Číslo: 2010-0049 Correction Ruší EASA AD 2009-0079 Účinnost od: 02. dubna 2010 Eurocopter Deutschland GmbH BO 105, MBB-BK 117 Tento PZZ je vydáván pro výrobek transferovaný pod působnost EASA. Na základě rozhodnutí EASA je následující Příkaz k zachování letové způsobilosti závazný pro všechny výrobky provozované v EU na které se daný PZZ vztahuje. Provedení PZZ, který se vztahuje podle typu a výrobního čísla na výrobek je pro provozovatele/vlastníka letadla zapsaného do leteckého rejstříku závazné. Neprovedením PZZ ve stanoveném termínu dojde ke ztrátě letové způsobilosti výrobku. Poznámky: - Provedení tohoto PZZ musí být zapsáno do provozní dokumentace letadla. - Případné dotazy týkající se tohoto PZZ adresujte na ÚCL sekce technická. - Pokud to vyžaduje povaha tohoto PZZ, musí být zapracován do příslušné části dokumentace pro obsluhu, údržbu a opravy letadla. ÚŘAD PRO CIVILNÍ LETECTVÍ, Letiště Ruzyně, 160 08 Praha 6 fax: +420 220 561 823 • telefon: +420 225 421 111 • www.ucl.cz • email: podatelna@caa. EASA AD No : 2010-0049 EASA Form 110 Page 1/2 EASA AIRWORTHINESS DIRECTIVE AD No.: 2010-0049 [Corrected: 24 March 2010] Date: 19 March 2010 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 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]. Type Approval Holder’s Name : Eurocopter Deutschland GmbH Type/Model designation(s) : BO 105 and MBB-BK 117 helicopters TCDS Numbers : EASA.R.010, EASA.R.011 Foreign AD : Not applicable Supersedure : This AD supersedes EASA AD 2009-0079 dated 01 April 2009. ATA 67 Rotors Flight Control – Cyclic-Stick Locking Device – Modification Manufacturer(s): Eurocopter Deutschland GmbH, Eurocopter Hubschrauber GmbH, Messerschmitt-Bölkow-Blohm GmbH, Messerschmitt-Bölkow-Blohm Helicopter Canada Limited, Eurocopter Canada Limited. Applicability: BO 105 A, BO 105 C, BO 105 D, BO 105 LS A-1, BO 105 LS A-3 and BO 105 S helicopters, all variants, all serial numbers, and MBB-BK 117 A-1, MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2 and MBB-BK 117 C-1 helicopters, all serial numbers. Reason: There have been several cases reported where take-off was executed with a locked cyclic stick on EC135 series helicopters. EASA AD 2008-0113 was issued to address and correct this problem. The Stick Locking Device as installed on BO 105 and MBB-BK 117 rotorcraft types has a similar function. Trying to take off with a locked cyclic stick may lead to loss of control of the helicopter. Although no recent reports of take-off with a locked cyclic stick have been received concerning BO 105 or MBB-BK 117 helicopters, to prevent such occurrences, Eurocopter Deutschland (ECD) has developed a modification of the cyclic stick cantilever. After modification, locking of the cyclic stick is no longer possible. The cyclic stick can only be centred in its neutral position. For the reasons described above, EASA AD 2009-0079 was issued to require modification of the cyclic stick locking/centering device and the amendment of the applicable Rotorcraft Flight Manual (FLM). Since that AD was issued, the Model BO 105 LS A-3, which until recently was a Canadian type design owned by Eurocopter Canada, has been transferred to the ownership of Eurocopter Deutschland. Concurrently, the State of Design EASA AD No : 2010-0049 EASA Form 110 Page 2/2 responsibilities for the continued airworthiness of these helicopters was transferred to EASA. The unsafe condition addressed by EASA AD 2009-0079 also affects BO 105 LS A-3 helicopters, but no corresponding AD had been issued by Transport Canada prior to the type transfer taking place in June 2009. Consequently, this new EASA AD retains the requirements of AD 2009-0079, which is superseded, and adds the BO 105 LS A-3 helicopters to the Applicability. This AD has been republished to correct the Applicability, making this consistent with the certified Models as specified in the TCDS EASA.R.011. Effective Date: 02 April 2010 Required Action(s) and Compliance Time(s): Required as indicated, unless accomplished previously: Re-statement of the requirement of AD 2009-0079, applicable to all helicopters affected by this new AD, except the model BO 105 LS A-3: (1) Within 6 months after 15 April 2009 [the effective date of AD 2009-0079], modify the cyclic stick locking/centering device by removing the spring from the cyclic stick lock in accordance with the instructions of ECD Alert Service Bulletin (ASB) ASB-MBB-BK117-40-113 or ASB BO105-40-106, as applicable to the helicopter type. New requirement of this AD, only for model BO 105 LS A-3 helicopters: (2) Within 6 months after the effective date of this AD, modify the cyclic stick locking/centering device by removing the spring from the cyclic stick lock in accordance with the instructions of Eurocopter Canada Limited ASB BO105 LS 40-10. Applicable to all helicopters: (3) Concurrent with the modification as required by paragraph (1) or (2) of this AD, as applicable to helicopter type and model, amend the FLM by inserting the following note: NOTE: Move cyclic stick in its neutral position before the engines are started. The neutral position and the centering of the cyclic stick can be

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achieved by folding down the holder assy. Locking of the cyclic stick is no longer possible. This may be accomplished by inserting a copy of this AD into the FLM, or by FLM page(s) supplied by ECD. Ref. Publications: Eurocopter Deutschland ASB-MBB-BK117-40-113 dated 22 December 2008. Eurocopter Deutschland ASB BO105-40-106 dated 19 December 2008. Eurocopter Canada Limited ASB-BO 105 LS 40-10 dated 08 May 2009. 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. 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. 3. Enquiries regarding this AD should be referred to the Airworthiness Directives, Safety Management & Research Section, Certification Directorate, EASA; E-mail ADs@easa.europa.eu. 4. For any question concerning the technical content of the requirements in this AD, please contact Eurocopter Deutschland GmbH, Industriestrasse 4, 86607 Donauwörth, Federal Republic of Germany. Telephone: + 49 (0) 151 14 22 89 76, Facsimile: + 49 (0) 906 71-4111.