Approved under EASA DOA No. 21J.056 Page 1/9

2009.06.24 This document is available on the internet: www.eurocopter.com/techpub EUROCOPTER

DIRECTION TECHNIQUE SUPPORT

13725 MARIGNANE C EDEX F RANCE



# EMERGENCY 

# ALERT SERVICE BULLETIN

DAUPHIN NUMBER VERSIONS

Civil: B, B1 

# EC155 04A009

SUBJECT: LIMITATIONS

Limitation concerning the use of VIP 4-seat benches

ATA : 25

REVISION NUMBER DATE OF APPROVAL DATE OF ISSUE

Revision 0 On: March 30, 2009 2009.03.30

Revision 1 On: June 23, 2009 2009.06.24Approved under EASA DOA No. 21J.056 Page 2/9

2009.06.24 

### CAUTION

THE INFORMATION AND INSTRUCTIONS

CONTAINED IN THIS ALERT SERVICE BULLETIN

ARE INTENDED FOR MAINTENANCE

PERSONNEL AND FLIGHT CREWS.



### 1. PLANNING INFORMATION

1.A. EFFECTIVITY

1.A.1. Helicopters/installed equipment

Helicopters fitted with VIP 4-seat benches P/ N 365V85-0045-01 and P/N 365V85-0046-01 that are

convertible into 3-seat benches (see Figure 2 - Details A and B) with a serial number below 6893.

Helicopters embodying modification kit 365V080079.01 (modification to the rear bench) and/or

modification kit 365V080079.02 (modification to the front bench) which form the subject of Service

Bulletin No. 25-095, are not concern ed by this ALERT SERVICE BULLETIN.

1.A.2. Non-installed equipment

Not applicable.



### 1.B. ASSOCIATED REQUIREMENTS

Not applicable.



### 1.C. REASON

To limit the use of the VIP benches, mentioned in paragraph 1.A.1., to the 3-seat configuration.

This ALERT SERVICE BULLETIN formed the subject of EASA Airworthiness Directive No. 2009-0078-E.

The purpose of Revision 1 is to inform the oper ators that helicopters embodying modification kit

365V080079.01 and/or modification kit 365V08007 9.02 (introduced through Service Bulletin

No. 25-095) are not concerned by the instructions of this ALERT SERVICE BULLETIN.

Revision 1 of this ALERT SERVICE BULLETIN will form the subject of Revision 1 of EASA Airworthiness

Directive No. 2009-0078-E.Approved under EASA DOA No. 21J.056 Page 3/9

2009.06.24 

### 1.D. DESCRIPTION

Within the scope of new customization work cons isting in installing a VIP bench seat, EUROCOPTER

noted that the load strength of t he fixed parts of the installati on did not meet the statutory

requirements.

EUROCOPTER has validated the return to conformity of the installation, and a modification enabling

the bench attachments on the cabin floor to be strengthened in order to re-establish the 4-seat

capability, will soon be proposed to you.

Pending this modification, EUROCOPTER limits the use of VIP seat benches to the 3-seat

configuration.



### 1.E. COMPLIANCE

EUROCOPTER renders compliance with th is ALERT SERVICE BULLETIN, mandatory.

1.E.1. Compliance at the works

1.E.1.a. On helicopters

Before delivery, comply with paragraph 2.

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

Not applicable.

1.E.2. Compliance in service: By the operator

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

Comply once with paragraph 2. of this ALERT SER VICE BULLETIN at the latest at the next flightrelated inspection scheduled at 15 hours or 7 days (first limit reached).

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

Not applicable.Approved under EASA DOA No. 21J.056 Page 4/9

2009.06.24 

### 1.F. APPROVAL

Approval is limited to civil version helicopte rs subject to an Airworthiness Certificate.

1.F.1. Approval of the modifications

Not applicable.

1.F.2. Approval of the ALERT SERVICE BULLETIN

The technical information given in Revision 0 of this ALERT SERVICE BULLETIN was approved

on March 30, 2009 under the authori ty of EASA Design Organisa tion Approval No. 21J.056.

The technical information given in Revision 1 of this ALERT SERVICE BULLETIN was approved

on June 23, 2009 under the authority of EASA Design Organi sation Approval No. 21J.056.



### 1.G. MANPOWER

1.G.1. Qualification

1 Mechanic.

1.G.2. Time for the operations

15 minutes.

1.G.3. Estimated helicopter grounding time

Not applicable.



### 1.H. WEIGHT AND BALANCE

Not applicable.



### 1.I. EFFECT ON ELECTRICAL LOADS

Not applicable.



### 1.J. SOFTWARE MODIFICATION EMBODIMENT RECORD

Not applicable.



### 1.K. REFERENCES

Not applicable.Approved under EASA DOA No. 21J.056 Page 5/9

2009.06.24 

### 1.L. OTHER DOCUMENTS AFFECTED

Not applicable.



### 1.M. TOOLING AFFECTED

Not applicable.



### 1.N. INTERCHANGEABILITY AND MIXABILITY OF PARTS

Not applicable.Approved under EASA DOA No. 21J.056 Page 6/9

2009.06.24 

### 2. ACCOMPLISHMENT INSTRUCTIONS

2.A. GENERAL

Not applicable.



### 2.B. OPERATIONAL PROCEDURE

2.B.1. Preliminary steps

Remove the foam material from the se at bases of the benches, if necessary.

2.B.2. Converting the VIP 4-seat bench into a 3-seat bench

As per Figure 1:

- Unlock the upper harness (1) from its posit ion and secure it in place of harness (3).

- Unlock the upper harness (2) and retain it until the VIP bench attach ments are strengthened.

- Unlock the lower harness (5) from the two atta chment points (a) and (b) and retain it until the VIP

bench fixed parts are strengthened.

- Unlock the lower harness (6) from the two atta chment points (b) and (c) and secure it to the two

attachment points (d) and (e).

- Unlock the lower harness (4) from the attachment point (a), and secure it to attachment point (d).

- Unlock the lower harness (7) from the attachment poi nt (c), and secure it to attachment point (e).



### NOTE

The harness attachment system is simple; unlocking

and locking of the harness are ensured using a snap

hook.

For benches fitted with 4 head-rests, as shown on Fi gure 2 - Detail A, modify the configuration in

accordance with Figure 2 - Detail C:

- Remove head-rest (X) and retain it until the VIP bench attachments are strengthened.

- Relocate the head-rests (Y1), (Y2) and (Y3) in th e defined positions, as shown on Figure 2 - Detail C,

in order to return to the 3-seat configuration.

2.B.3. Final steps

Fit the foam material on the seat bases of the benches, if necessary.



### 2.C. IDENTIFICATION

Record compliance with this ALERT SERVICE BULLETIN on the helicopter documents.



### 2.D. OPERATING AND MAINTENANCE INSTRUCTIONS

Not applicable.Approved under EASA DOA No. 21J.056 Page 7/9

2009.06.24 Figure 1: VIP bench harness installations 

## HARNESS INSTALLATION ON EC155 VIP BENCH WITH 4 PASSENGERS

INSTALLATION HARNAIS SUR BANQ UETTE VIP 4 PLACES SUR EC155

HARNESS INSTALLATION ON EC155 VIP BENCH WITH 3 PASSENGERS

INSTALLATION HARNAIS SUR BAN Q UETTE VIP 3 PLA CES SUR EC155Approved under EASA DOA No. 21J.056 Page 8/9

2009.06.24 

### DETAIL A DETAIL B

DETAIL C

VIP bench in the 3-seat configuration

Figure 2 

### Y1 Y2 Y3 XApproved under EASA DOA No. 21J.056 Page 9/9

2009.06.24 

### 3. MATERIAL INFORMATION

3.A. MATERIAL: PRICE AND AVAILABILITY

3.A.1. Cost

Not applicable.

3.A.2. Availability

Not applicable.



### 3.B. INFORMATION CONCERNING INDUSTRIAL SUPPORT

Not applicable.



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

3.C.1. Kit(s) or component(s) to be or dered for one helicopter or one assembly

Not applicable.

3.C.2. Material to be ordered separately

Not applicable.



### 3.D. PROCUREMENT CONDITIONS

Not applicable.



### 4. APPENDIX

Not applicable.