EASA AD No.: 2009-0277R1 

EASA Form 110 Page 1/2 

EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2009-0277R1 

Date: 05 February 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 Names: 

EUROCOPTER 

Type/Model designation(s): 

EC 120, AS 350, EC 130, AS 355, SA 341 

and SA 342 helicopters 

TCDS Numbers: EASA.R.008; EASA.R.146; France No. 136 and 189. 

Foreign AD: Not applicable 

Revision : This AD revises and replaces EASA AD 2009-0277 dated 23 December 2009. 

ATA 26 Fire Protection – Portable Halon 1211 Fire Extinguishers – 

Identification / Replacement 

Manufacturer(s): Eurocopter (formerly Eurocopter France, Aerospatiale, Sud Aviation) 

Applicability: 

Eurocopter helicopter models: 

EC 120 B, 

AS 350 B, BA, B1, B2, B3, BB and D, and EC 130 B4 

AS 355 E, F, F1, F2, N and NP 

SA 341 G and SA 342 J 

if equipped with P/N 863520-00 portable fire extinguishers, serial numbers (s/n) 

as listed in L’Hotellier Service Bulletin (SB) 863520-26-001. 

Reason: 

The Civil Aviation Authority of the United Kingdom (UK) has informed EASA 

that significant quantities of Halon 1211 gas, determined to be outside the 

required specification, have been supplied to the aviation industry for use in 

fire extinguishing equipment. Halon 1211 (BCF) is used in portable fire 

extinguishers, usually fitted or stowed in aircraft passenger cabins and flight 

decks. 

EASA published Safety Information Bulletin (SIB) 2009-39 on 23 October 2009 

to make the aviation community aware of this safety concern. 

The results of the ongoing investigation have now established that LyonTech 

Engineering Ltd, a UK-based company, has supplied further consignments of 

Halon 1211 (BCF) to L’Hotellier that do not meet the required specification. 

This Halon 1211 has subsequently been used to fill certain P/N 863520-00 
EASA AD No.: 2009-0277R1 

EASA Form 110 Page 2/2 

portable fire extinguishers that are now likely to be installed in or carried on 

certain Eurocopter helicopters. 

The contaminated nature of this gas, when used against a fire, may provide 

reduced fire suppression, endangering the safety of the helicopter and its 

occupants. In addition, extinguisher activation may lead to release of toxic 

fumes, possibly causing injury to helicopter occupants. 

For the reason described above, this EASA AD requires the identification and 

removal from service of certain batches of fire extinguishers and replacement 

with serviceable units. 

Based on a reassessment of the risk of this unsafe condition on helicopters, 

this AD has been revised to extend the compliance time. 

Effective Date: Revision 1 : 05 February 2010 

Original issue : 06 January 2010 

Required Action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

(1) Within 6 months after the effective date of the original issue of this AD, 

accomplish the following: 

(1.1) Identify the P/N and s/n of the fire extinguisher(s) installed or 

carried on board the helicopter, as listed in L’Hotellier SB 863520-

26-001 and 

(1.2) If any fire extinguisher identified as required by paragraph (1.1) of 

this AD is listed in L’Hotellier SB 863520-26-001, remove it from the 

helicopter and replace it with a serviceable unit. 

(2) From the effective date of the original issue of this AD, do not install any 

fire extinguisher as identified in L’Hotellier SB 863520-26-001 on any 

helicopter, unless it has been overhauled with compliant Halon 1211 

(BCF) and re-identified, in accordance with the instructions of L’Hotellier 

SB 863520-26-001. 

Ref. Publications: 

L’Hotellier SB 863520-26-001 dated 21 December 2009. 

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. 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 (STDI) – Aéroport de Marseille Provence 13725 Marignane 

Cedex, France; telephone +33 (4) 12 85 97 97; facsimile +33 (4) 85 99 66; 

E-mail: Directive.technical-support@eurocopter.com. 

 For information on the fire extinguishers, contact: 

L’HOTELLIER, 4 rue Henri Poincaré, 92167 ANTONY Cedex, France 

Telephone +33(0) 1 46 66 08 08, Fax +33(0) 1 46 66 23 24 

E-mail alain.dorneau@hs.utc.com.

To obtain a copy of the referenced SB, please contact L’Hotellier at 

Sylvie.laruffa@hs.utc.com.