EUROCOPTER

CIVIL VERSIONS: B, B1

DIRECTION TECHNIQUE SUPPORT

13725 MARIGNANE CEDEX FRANCE

SERVICE BULLETIN

No. 25-095

SUBJECT: EQUIPMENT AND FURNISHINGS

Improved security of front and rear 3- to 4-men VIP bench seats

Corresponds to modifications 365V08-0079-01 and 365V08-0079-02

REVISION No. DATE OF APPROVAL DATE OF ISSUE

Revision 0 On: June 23, 2009 2009.06.25

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This document is available on the Internet: www.eurocopter.com/techpub 2009.06.25

SERVICE BULLETIN EC155
1. PLANNING INFORMATION

CAUTION

THE INFORMATION AND INSTRUCTIONS IN THIS

SERVICE BULLETIN ARE INTENDED FOR

MAINTENANCE TEAMS AND FLIGHT CREWS.

1.A. EFFECTIVITY

1.A.1. Helicopters/Installed equipment

EC155 helicopters equipped with 4-men VIP bench seats convertible into 3-men seat benches, P/N

365V85004501 (front VIP bench seat) and 365V85004601 (rear VIP bench seat) , whose serial number is lower

than 6893.

Helicopters on which retrofit P/N 365V080079.01 (modification to rear bench seat) and/or P/N 365V080079.02

(modification to front bench seat) was/were installed are not concerned by this SERVICE BULLETIN.

1.A.2. Non-installed equipment

Not applicable.

1.B. ASSOCIATED REQUIREMENTS

Not applicable.

1.C. REASON

This Service Bulletin No. 25-095 purports to strengthen the attachment security on cabin floor of 4-men VIP

bench seats which are convertible into front and rear 3-men bench seats.

Compliance with this Service Bulletin No. 25-095 lifts the operating limitation of the 3-men VIP bench seats

configuration, which forms the subject of EASB No. 04A009.

Compliance with this Service Bulletin supersedes the prescriptions of Emergency Alert Service Bulletin No.

04A009.

1.D. DESCRIPTION

In order to improve the security on cabin floor of front and rear VIP bench seats in case of hard landing,

EUROCOPTER designed modifications 365V08-0079-01 (Rear VIP bench seat) and 365V08-0079-02 (Front

VIP bench seat).

These modifications consist of fitting new shims between the attachment rails and the cabin floor, at front and/or

rear seat positions.

EUROCOPTER recommends compliance with this Service Bulletin.

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SERVICE BULLETIN EC155
1.E. COMPLIANCE

1.E.1. Compliance at the works

1.E.1.a. On helicopter

Aircraft No.:

- 6832 - 6844 -6847 - 6850 - 6852 - 6880 - 6883 - 6885 - 6886 - 6892.

1.E.1.b. On non-installed equipment

Not applicable.

1.E.2. Compliance in service

1.E.2.a. On helicopter/installed equipment

Comply with Paragraph 2.B. of this Service Bulletin, published at the date mentioned in the page footer, by

June 30, 2011 at the latest.

1.E.2.b. On non-installed equipment

Not applicable.

1.F. APPROVAL

1.F.1. Approval of modifications

The information or instructions relating to modifications 365V08-0079-01 (Rear VIP bench seat) and

365V08-0079-02 (Front VIP bench seat) were approved on May 26, 2009.

1.F.2. Approval of the Service Bulletin

The technical information contained in this Service Bulletin No. 25-095 Revision 0 was approved on June 23,

2009 under the authority of EASA Design Organization Approval No. 21J.056.

1.G. MANPOWER

1.G.1. Qualification

For compliance with this Service Bulletin, Eurocopter recommends the following personnel qualifications:

Qualification:

- 1 Mechanical Technician.

1.G.2. Time for the operations

Time for the operations is indicated for reference, for a standard configuration.

- 8 hours approximately, for removal of shims if any and surface preparation.

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SERVICE BULLETIN EC155
- 24 hours for installation of new shims (bonding + stress-loading by rails).

1.G.3. Estimated helicopter grounding time

- 36 Hours.

1.H. WEIGHT AND BALANCE

1.H.1. Weight

Negligible.

1.H.2. Moment

Negligible.

1.I. EFFECT ON ELECTRICAL LOADS

Not applicable.

1.J. SOFTWARE MODIFICATION EMBODIMENT RECORD

Not applicable.

1.K. REFERENCES

AMM : 24-00-00-911 : GENERAL SAFETY INSTRUCTIONS - Electrical Power.

AMM : 25-20-02-061 : REMOVAL / INSTALLATION - VIP Seat.

MTC : 20.01.01.304 : MISCELLANEOUS PRODUCTS USED ON HELICOPTERS - Special products.

MTC : 20.02.05.404. : JOINING - Assembling by bolts and nuts.

CLEANING - Description and use of standard cleaning products for individual parts and

on aircraft.

MTC : 20.04.01.102 :

PAINT APPLICATION PROCEDURE: General information concerning painting means

and paint touch-ups.

MTC : 20.04.05.101 :

MTC : 20.06.01.101 : BONDING by ADHESIVES - General rules for bonding by adhesive.

MTC : 20.06.01.407 : BONDING by ADHESIVES - "EC 2216" cement.

TECHNICAL INSTRUCTIONS - Instructions applicable when working on an aircraft electrical

circuit or when energizing aircraft power generating systems on ground.

MTC : 20.07.03.406 :

TECHNICAL INSTRUCTIONS - General principles applicable for visual cleanliness,

appearance checks on an aircraft after an inspection or repair.

MTC : 20.07.03.408 :

1.L. OTHER DOCUMENTS AFFECTED

1.L.1. Documents already updated

Not applicable.

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SERVICE BULLETIN EC155
1.L.2. Documents to be updated

Not applicable.

1.M. TOOLING AFFECTED

Not applicable.

1.N. INTERCHANGEABILITY OR MIXABILITY OF PARTS

1.N.1. Interchangeability

If existing shims: pre-MOD and post-MOD shims 365V08-0079-01 and 365V08-0079-02 are not interchangeable.

1.N.2. Mixability

If existing shims: mixing between pre-MOD and post-MOD shims is prohibited. Only post-MOD shims from kits

365V08-0079-0171 and 365V08-0079-0271 are installable.

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SERVICE BULLETIN EC155
2. ACCOMPLISHMENT INSTRUCTIONS

2.A. GENERAL

- Refer to list of ingredients in Work Card 20.01.01.304 (MTC).

- Clean floor as per Work Card 20.04.01.102 (MTC).

- Tighten bolts as per Work Card 20.02.05.404. (MTC).

- Touch up paint as per Work Card 20.04.05.101 (MTC).

- Carry out bonding with adhesive EC2216 as per Work Card 20.06.01.407 (MTC).

- Refer to general principles applicable for visual cleanliness, appearance checks on an aircraft after an inspection

or repair as per Work Card 20.07.03.408 (MTC).

2.A.1. General instructions

- Refer to general electrical instructions in Task 24-00-00-911 (AMM).

- Comply with general rules for bonding with adhesive as per Work Card 20.06.01.101 (MTC).

2.A.2. Special safety instructions

Not applicable.

2.A.3. Document checks

Not applicable.

2.B. OPERATIONAL PROCEDURE

2.B.1. Preliminary steps

- Disconnect all electrical power supplies as per Work Card 20.07.03.406 (MTC).

- Remove front and/or rear VIP bench seats as per Task 25-20-02-061 (AMM).

- Remove all items as required for access to VIP seat attachment items.

- Remove door sills.

- Push carpeting away to release from upholstery.

- Remove carpeting from cabin floor.

2.B.2. Procedure

2.B.2.a. Removal

Removal of "front VIP bench seat" shims (Figure 1)

- Remove rails (a) and retain nuts & bolts (DETAIL A).

- Find shims (b) if any, bonded on cabin floor.

- By means of spatula, detach and scrap shims (b).

- Clean location of shims (b) to remove any trace of adhesive as per Work Card 20.06.01.101 (MTC).

Removal of "rear VIP bench seat" shims (Figure 2)

- Remove rails (c) and retain nuts & bolts (DETAIL A).

- Find shims (d) if any, bonded on cabin floor.

- By means of spatula, detach and scrap shims (d).

- Clean location of shims (d) to remove any trace of adhesive as per Work Card 20.06.01.101 (MTC).

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2.B.2.b. Installation

Installation of "front VIP bench seat" shims (Figure 1)

- At location of shims (b), position 4 shims (1), 2 shims (4) and 2 shims (5), mark, strip and clean location as

required as per Work Cards 20.04.01.102 (MTC) and 20.06.01.101 (MTC) (DETAIL A).

- Procedure for bonding shims on floor:

. coat bolts and inserts with petrolatum (12) (to allow bolt removal);

. smear 4 shims (1), 2 shims (4) and 2 shims (5) with adhesive (10) (DETAILS A and B);

. position 4 shims (1), 2 shims (4) and 2 shims (5) on cabin floor;

. install rails (a) on shims, with recovered attachment bolts;

. tighten bolts to contact until adhesive slightly seeps around 4 shims (1), 2 shims (4) and 2 shims (5);

. clean off adhesive seepage with a dry, lint-free cloth;

. allow to dry for 24 hours if room temperature is ca. 20°C;

. remove bolts;

. clean bolts and inserts by means of MEK (11) to eliminate petrolatum grease (12);

. re-install bolts and tighten rail attachment bolts (a) to standard tightening torque.

- Clean floor as per Work Card 20.07.03.408 (MTC).

- Touch up cabin floor paint as per Work Card 20.04.05.101 (MTC).

Installation of "rear VIP bench seat" shims (Figure 2)

- At location of shims (d), position 4 shims (1), 2 trimmed shims (2) and 2 shims (3); mark, strip and clean

location as required as per Work Cards 20.04.01.102 (MTC) and 20.06.01.101 (MTC) (DETAIL A).

- Procedure for bonding shims on floor:

. coat bolts and inserts with petrolatum (12) (for bolt removal);

. smear 4 shims (1), 2 trimmed shims (2) and 2 shims (3) with adhesive (10) (DETAILS A and B);

. position 4 shims (1), 2 trimmed shims (2) and 2 shims (3) on cabin floor;

. install rails (c) on shims, with recovered attachment bolts,

. tighten bolts to contact until adhesive slightly seeps around 4 shims (1), 2 trimmed shims (2) and 2 shims (3);

. clean off adhesive seepage with a dry, lint-free cloth;

. allow to dry for 24 hours if room temperature is ca. 20°C;

. remove bolts;

. clean bolts and inserts by means of MEK (11) to eliminate petrolatum grease (12);

. re-install bolts and tighten rail attachment bolts (a) to standard tightening torque.

- Clean floor as per Work Card 20.07.03.408 (MTC).

- Touch up cabin floor paint as per Work Card 20.04.05.101 (MTC).

2.B.2.c. Reconfiguring 3-men VIP bench seat into 4-men VIP bench seat (Figure 3)

For Clients who complied with EASB 04A009:

- with items from front and/or rear VIP bench seats which were removed for compliance with EASB 04A009,

reconfigure front and/or rear VIP bench seats from 3-men into 4-men version.

2.B.3. Tests

Not applicable.

2.B.4. Final steps

- Re-install cabin floor carpeting.

- Push in carpeting underneath upholstery.

- Re-install door sills.

- Re-install all items which were removed for access to VIP bench seat attachment components.

- Install and secure front and/or rear VIP bench seats as per Task 25-20-02-061 (AMM).

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SERVICE BULLETIN EC155
- Reconnect all electrical power supplies as per Work Card 20.07.03.406 (MTC).

- Restore aircraft to flight condition.

2.B.5. Ground run/flight test

Not applicable.

2.C. OPERATIONAL PROCEDURE ON NON-INSTALLED EQUIPMENT

2.C.1. Stock retrofitting

Not applicable.

2.C.2. Stock replacement, stock scrapping and stock building-up

Not applicable.

2.D. IDENTIFICATION

2.D.1. Identification of modifications in the documentation

Record embodiment of modifications 365V08-0079-01 (Rear VIP bench seat) and/or 365V080079-02 (Front

VIP bench seat) and compliance with this Service Bulletin No. 25-095 with its Revision number in the aircraft

documents.

2.D.2. Identification of modifications on equipment

Not applicable.

2.D.3. Identification of the new version

Not applicable.

2.E. OPERATING AND MAINTENANCE INSTRUCTIONS

2.E.1. Operating instructions

Not applicable.

2.E.2. Scheduled maintenance instructions

Not applicable.

2.E.3. Unscheduled maintenance instructions

Not applicable.

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Figure 1

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Figure 2

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PAGE LEFT BLANK INTENTIONALLY

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Figure 3

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3. INFORMATION ON MATERIAL

3.A. MATERIAL: COST AND AVAILABILITY

3.A.1. Cost

3.A.1.a. Components

Cabin floor reinforcement kits 365V08-0079-0171 (Rear VIP bench seat) and 365V08-0079-0271(Front VIP

bench seat) will be delivered free of charge by EUROCOPTER.

3.A.1.b. Tooling

Not applicable.

3.A.2. Availability

3.A.2.a. Components

Cabin floor reinforcement kits 365V08-0079-0171 and 365V08-0079-0271 will be delivered upon Operator's

order.

3.A.2.b. Tooling

Not applicable.

3.B. INFORMATION CONCERNING INDUSTRIAL SUPPORT

Not applicable.

3.C. MATERIAL REQUIRED FOR EACH HELICOPTER/ENGINE/COMPONENT

3.C.1. Kits or components to be ordered for one helicopter or one assembly

To reinforce cabin floor at front and/or rear VIP bench seat attachment points, according to aircraft configuration,

place order for kit:

- 365V08-0079-0171 Rear VIP bench seat retrofit kit.

and/or

- 365V08-0079-0271 Front VIP bench seat retrofit kit.

Material P/N Qty Item Key Word Former P/N Instructions

365V08-0079-0171 1 "REAR" VIP bench seat retrofit kit, including: including:

365V08-0079-20 4 (1) shim

365V08-0079-22 2 (2) shim, trimmed

365V08-0079-25 2 (3) shim

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SERVICE BULLETIN EC155
Material P/N Qty Item Key Word Former P/N Instructions

365V08-0079-0271 1 "FRONT" VIP bench seat retrofit kit, including including:

365V08-0079-20 4 (1) shim

365V08-0079-23 2 (4) shim, 4 holes

365V08-0079-24 2 (5) shim, 3 holes

3.C.2. Material to be ordered separately

Not applicable.

3.C.3. Material to be modified at the Manufacturer's or to be returned

Not applicable.

3.C.4. Products to be ordered separately

The ingredients can be ordered separately, from the INTERTURBINE company:

Website: http://www.itlogistics.de

Telephone: +49.41.91.809.300

AOG: +49.41.91.809.444

Material P/N Qty Item Key Word

DHS172-172.20 100 gr (10) Adhesive EC2216 B/A

Methyl-ethyl-Ketone 1 liter (11) Cleaning agent

(MEK)

AIR 3565 / A 100 gr (12) Petrolatum

3.C.5. Tooling

Not applicable.

3.C.6. Material supplied by the User

Not applicable.

3.C.7. Material required for non-installed components

Not applicable.

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3.D. PROCUREMENT CONDITIONS

Order the required quantity from the EUROCOPTER network's Customer Support Sales Department,

from

EUROCOPTER

Etablissement de Marignane

Direction VENTES Service Client (C.R.)

13725 MARIGNANE CEDEX

FRANCE

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4. APPENDIX

Not applicable.

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