EASA AD No.: 2014-0211

TE.CAP.00110-004 © European Aviation Safety Agency. All rights reserved. 1/2

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EASA AIRWORTHINESS DIRECTIVE

AD No.: 2014-0211

Date: 19 September 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:

AIRBUS HELICOPTERS DEUTSCHLAND GmbH

Type/Model designation(s):

MBB-BK 117 C-2 helicopters

TCDS Number: EASA.R.010

Foreign AD: Not applicable

Supersedure: None

ATA 88 Wiring / Harness – Hoist Control Pendant Wiring Harness –

Inspection / Modification

Manufacturer(s): Airbus Helicopters Deutschland GmbH (AHD) (formerly Eurocopter 

Deutschland GmbH), Airbus Helicopters Inc. (formerly American Eurocopter 

LLC)

Applicability: MBB-BK117 C-2 helicopters, all serial numbers, when equipped with optional 

equipment external mounted hoist system.

Reason: An uncommanded hoist cable cut occurred on an MBB‐BK117 C‐2 helicopter. 

During the investigation of this incident, chafing was detected on the wiring 

harness of the hoist control pendant and on the wiring of the +28V wire of the

stand‐by horizon inside the middle ceiling panel. The wire of the stand‐by 

horizon got in contact with the hoist control pendant wiring harness, thus 

causing the uncommanded cable cut.

This condition, if not detected and corrected, could lead to load release, 

possibly resulting in injury to a human load or to persons on the ground.

To address this unsafe condition, AHD issued Alert Service Bulletin (ASB)

MBB‐BK117 C‐2‐88A‐009 to provide inspection and modification instructions.

For the reason described above, this AD requires a one-time visual inspection

and modification of the hoist control pendant wiring harness.

Effective Date: 22 September 2014
EASA AD No.: 2014-0211

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Required Action(s) 

and Compliance

Time(s):

Required as indicated, unless accomplished previously:

(1) Before the next hoist operation after the effective date of this AD,

accomplish a one‐time visual inspection of the hoist control pendant wiring 

harness in accordance with the instructions of Section 3.B.2 of ASB 

MBB‐BK117 C‐2‐88A‐009.

(2) If, during the inspection as required by paragraph (1) of this AD, heavy 

chafing is found on the hoist control pendant wiring harness, before the 

next hoist operation, replace the wiring harness in accordance with the 

instructions of Section 3.B.2 of ASB MBB‐BK117 C‐2‐88A‐009.

(3) Within 3 months after the effective date of this AD, accomplish the retrofit 

of a protection sleeve to the hoist control pendant wiring harness in 

accordance with the instructions of Section 3.B.3 of ASB MBB‐BK117 

C‐2‐88A‐009.

(4) From the effective date of this AD, installation of a hoist control pendant 

wiring harness is allowed, provided the harness is fitted with a protection 

sleeve as required by paragraph (3) of this AD prior to installation.

Ref. Publications: Airbus Helicopters Deutschland ASB MBB‐BK117 C‐2‐88A‐009 original issue

dated 18 June 2014.

The use of later approved revisions of this 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. Based on the required actions and the compliance time, EASA have 

decided to issue a Final AD with Request for Comments, postponing the 

public consultation process until after publication.

3. Enquiries regarding this AD should be referred to the Safety Information 

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:

Airbus Helicopters Deutschland GmbH, Industriestrasse 4, 

86607 Donauwörth, Federal Republic of Germany

Telephone: + 49 (0)151 1422 8976; Facsimile: + 49 (0)906 71 4111.