### ALERT SERVICE BULLETIN AS350

Approved under EASA DOA No. 21J.056. 

# 25.01.02 Page 1/7

2008.09.24

This document is available on t he internet: www.eur ocopter.com/techpub EUROCOPTER

DIRECTION TECHNIQUE SUPPORT

13725 MARIGNANE C EDEX F RANCE 

### CIVIL VERSION(S): BA



# ALERT SERVICE BULLETIN

No. 25.01.02

SUBJECT : EQUIPMENT AND FURNISHINGS

1900 kg and 1950 kg Emergency Flotation Gear

REVISION No. DATE OF APPROVAL DATE OF ISSUE

Revision 0 On: September 22, 2008 2008.09.24

### ALERT SERVICE BULLETIN AS350

Approved under EASA DOA No. 21J.056. 

# 25.01.02 Page 2/7

2008.09.24 

### 1. PLANNING INFORMATION

1.A. EFFECTIVITY

1.A.1. Helicopters/Installed equipment

Helicopters fitted with emergency flotation gear in cluding the assemblies listed below and not having been

granted an operating time limit extension fr om the equipment manufacturer AERAZUR:

- LH container assembly P/N 158170 or P/N 158210-1,

and,

- RH container assembly P/N 158171 or P/N 158215-1.



### NOTE 1

Container assemblies granted an operating time limit extension

by the equipment manufacturer, must systematically be

scrapped at the end of this extension.

1.A.2. Non-installed equipment

Emergency flotation gear including the assemblies listed below and not having been granted an operating

time limit extension from the equipment manufacturer AERAZUR:

- LH container assembly P/N 158170 or P/N 158210-1,

and,

- RH container assembly P/N 158171 or P/N 158215-1.



### NOTE 2

Container assemblies granted an operating time limit extension

by the equipment manufacturer must systematically be

scrapped at the end of this extension.



### 1.B. ASSOCIATED REQUIREMENTS

Not applicable.



### 1.C. PURPOSE

To replace the emergency flotation gear container assemblies having reached their operating time limit.

This ALERT SERVICE BULLETIN will be cove red in an EASA Airworthiness Directive.

### ALERT SERVICE BULLETIN AS350

Approved under EASA DOA No. 21J.056. 

# 25.01.02 Page 3/7

2008.09.24 1.D. DESCRIPTION

The emergency flotation gear container assemblies listed in paragraph 1.A. of this ALERT SERVICE

BULLETIN have a fixed operating time lim it of 10 years from the date of manufacture. As of June 2006, this

limit is no longer recorded in the Maintenance Program (PRE): it is therefore possible that container

assemblies that have reached the 10-year lim it since this date have not been replaced.

The PRE does however require a complete inspection of the container assemblies at regular intervals.

Despite this inspection, the floatability of a helicopter may prove to be insuffi cient in the event of ditching if an

emergency flotation gear is operated beyond its operating time limit.

As a result, EUROCOPTER hereby informs you that you must replace the container assemblies at the time

limits specified in paragraph 1.E. of this ALERT SERVICE BULLETIN based on t heir date of manufacture.



### 1.E. COMPLIANCE

EUROCOPTER hereby declares that compliance with this ALERT SERVICE BULLETIN is mandatory.

1.E.1. Compliance at the works

Not applicable.

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

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

On receipt of this ALERT SERVICE BULLETIN iss ued on the date indicated at the bottom of the page:

If the container assemblies were manufactured 12 years ago or more:

- Replace the container assemblies at the latest within the month following receipt of this ALERT

SERVICE BULLETIN, issued on the date indicated at the bottom of the page. To obtain a possible

extension to the operating time limit, return the c ontainer assemblies to the equipment manufacturer for

examination before approval.

If the container assemblies were manufactured between 10 and 12 years ago:

- Replace the container assemblies within 2 months following receipt of this ALERT SERVICE BULLETIN,

issued on the date indicated at the bottom of t he page, without exceeding 12 years and 1 month since

the date of manufacture (the first limit reached is applicable). To obtain a possible extension to the

operating time limit, return the container assemb lies to the equipment manufacturer for examination

before approval.

If the container assemblies were manufactured between 9 and 10 years ago:

- Replace the container assemblies at the next inspec tion of the emergency flotation gear and at the latest

when they reach 10 years and 2 months since the date of manufacture (the first limit reached is

applicable). To obtain a possible extension to the operati ng time limit of the container assemblies, return

them to the equipment manufacturer for examination before approval.

If the container assemblies were manufactured less than 9 years ago:

- Replace the container assemblies at the latest w hen they reach 10 years sinc e the date of manufacture.

To obtain a possible extension to the operating time limit of the container assemblies, return them to the

equipment manufacturer for ex amination before approval.

### ALERT SERVICE BULLETIN AS350

Approved under EASA DOA No. 21J.056. 

# 25.01.02 Page 4/7

2008.09.24 1.E.2.b. On non-installed equipment

On receipt of this ALERT SERVICE BULLETIN iss ued on the date indicated at the bottom of the page:

If the container assemblies were manufactured 10 years ago or more:

- Before installation on a helicopter and at the late st 1 year from receipt of this ALERT SERVICE

BULLETIN, issued on the date indicat ed at the bottom of the page, return the container assemblies to the

equipment manufacturer for examination, in order to obtain a possible extension to their operating time

limit.

If the container assemblies were manufactured less than 10 years ago:

- At the latest when the container assemblies reach 10 years, return them to the equipment manufacturer

for examination in order to obtain a possibl e extension to their operating time limit.



### 1.F. APPROVAL

Approval is limited to civil version helicopter s subject to an Airworthiness Certificate.

The technical information provided in th is ALERT SERVICE BULLETIN was approved

on September 22, 2008 under the authority of EASA Design Organisation Approval No. 21J.056.



### 1.G. MANPOWER

Not applicable.



### 1.H. WEIGHT AND BALANCE

Not applicable.



### 1.I. EFFECT ON ELECTRICAL LOADS

Not applicable.



### 1.J. SOFTWARE MODIFICATION EMBODIMENT STATE

Not applicable.



### 1.K. REFERENCES

Not applicable.

### ALERT SERVICE BULLETIN AS350

Approved under EASA DOA No. 21J.056. 

# 25.01.02 Page 5/7

2008.09.24 1.L. OTHER DOCUMENTS AFFECTED

EUROCOPTER will modify the Maintenance Program (PRE) in accordance with this ALERT SERVICE

BULLETIN.

This document will be issued subsequently.



### 1.M. TOOLING AFFECTED

Not applicable.



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

Not applicable.

### ALERT SERVICE BULLETIN AS350

Approved under EASA DOA No. 21J.056. 

# 25.01.02 Page 6/7

2008.09.24 

### 2. ACCOMPLISHMENT INSTRUCTIONS

2.A. GENERAL

Not applicable.



### 2.B. OPERATIONAL PROCEDURE

Not applicable.



### 2.C. IDENTIFICATION

Record compliance with this ALERT SERVICE BULLETIN on the Log Card of the equipment.



### 2.D. OPERATING AND MAINTENANCE INSTRUCTIONS

Not applicable.

### ALERT SERVICE BULLETIN AS350

Approved under EASA DOA No. 21J.056. 

# 25.01.02 Page 7/7

2008.09.24 

### 3. MATERIAL INFORMATION

3.A. MATERIAL: COST - AVAILABILITY

For all information concerning the kits and/or co mponents, contact the EUROCOPTER Network Sales and

Customer Relations Department.



### 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

Material

Part Number Qty Item Key Word Former

Part Number Instructions

158170 1 Container assembly, LH 158170 As necessary

158171 1 Container assembly, RH 158171 As necessary

158210-1 1 Container assembly, LH 158210-1 As necessary

158215-1 1 Container assembly, RH 158215-1 As necessary

3.C.2. Items to be ordered separately

Not applicable.



### 3.D. PROCUREMENT CONDITIONS

Order the required quantity (unless otherwise specified)

from

AERAZUR

2 Rue Maurice Mallet

92130 ISSY LES MOULINEAUX

FRANCE



### NOTE

On the purchase order, please specify the mode of transport,

the destination and the serial num bers of the helicopters to be

modified.



### 4. APPENDIX

Not applicable.