# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 1/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub 

### Civil version: N3



# ALERT SERVICE BULLETIN

SUBJECT: EQUIPMENT AND FURNISHIN GS - Life raft installation

Improved external life raft deployment controls
Corresponds to modification 365A084711.00



### Revision No. Date of issue

Revision 0 2014-09-29

Revision 1 2015-02-02



### Summary:

Functional improvement of the external life raft deployment controls in order to ensure optimum life raft deployment in the event of ditching.



### Reason for last Revision:

To add life raft Part Number (MP/N) 245 434-0 to paragraph 1.A. Effectivity.



### Compliance:

Airbus Helicopters renders compliance with this ALERT SERVICE BULLETIN mandatory. For the attention of

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 2/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub 

### 1. PLANNING INFORMATION

1.A. EFFECTIVITY

1.A.1. Helicopters/installed equipment

Helicopters equipped with optional AER AZUR TYPE SR10 external life rafts: - life raft, Part Number (MP/N) 24 5431-0 (former cylinder without be acon installation provisions), - life raft, Part Number (MP/N) 245431-1 (carbon cylinder without beacon in stallation provisions), - life raft, Part Number (MP/N) 24 5434-0 (metal cylinder with beacon installation provisions), - life raft, Part Number (MP/N) 245434-1 (carbon cylinder with be acon installation provisions).

1.A.2. Non-installed equipment

Not applicable.



### 1.B. ASSOCIATED REQUIREMENTS

Not applicable.



### 1.C. REASON

Revision 0:

Airbus Helicopters has been informed that, following installation of a new life raft on a helicopter, the travel of the life raft deployment control could not be adj usted as stated in the Maintenance Manual. Technical analysis revealed that the position of t he life raft inflation cylinder may slacken the deployment

control cable.

This anomaly in the life raft deployment control linkage is due to the varying position of the inflation cylinder inside the bag which contains the life raft, and to the va rying position of the bag inside the container, related to installation-removal of the optional equipment, calendar overhauls, life raft storage, shock impacts, in-flight vibrations, etc. Cylinder displacement may induce insu fficient travel of the deployment control for life raft

inflation.

Airbus Helicopters has developed modification 365A08471 1.00 which ensures sufficient travel of the life raft deployment control cable in all positio ns of the inflation cylinder. Alt hough no case of non-deployment of a life raft has been reported, Airbus Helicopters ma kes compliance with this ALERT SERVICE BULLETIN mandatory.

Revision 1:

The purpose of Revision 1 of this ALERT SERVI CE BULLETIN is to add life raft Part Number (MP/N) 245434-0 to paragraph 1.A. Effectivity.

Revision 1 affects compliance with Revision 0 of this ALERT SERVICE BULLETIN only for helicopters equipped with life raft Part Number (MP/N) 245434-0.

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 3/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub 

### 1.D. DESCRIPTION

Compliance with this ALERT SERVICE BULLETIN consists in:

- Opening the containers of the optional life rafts. - Improving the life raft deployment controls. - Returning the helicopter to flight configuration.



### 1.E. COMPLIANCE

1.E.1. Compliance at the works

Helicopters/installed equipment:

Not applicable.

Non-installed equipment:

Not applicable.

1.E.2. Compliance in service

The work on the helicopter is to be performed by the operator.

Helicopters/installed equipment:

- For helicopters equipped with life raft Part Numbers (MP/N) 245431-1, 245431-0, 245434-1:

If the helicopter is used for missions which require lif e rafts, comply with paragraph 3.B. of this ALERT SERVICE BULLETIN within 110 flying hours following receipt of this ALER T SERVICE BULLETIN Revision 0, issued on the date indicated at the bottom of the page.

In order to ensure full compliance of the fleet within a controlled calendar time limit, Airbus Helicopters makes compliance with paragraph 3.B. of this AL ERT SERVICE BULLETIN mandatory, no later than within 6 months following receipt of this ALERT SERVICE BULLETIN Revision 0, issued on the date indicated at the bottom of the page.

- For helicopters equipped with life raft Part Number (MP/N) 245434-0:

If the helicopter is used for missions which require lif e rafts, comply with paragraph 3.B. of this ALERT SERVICE BULLETIN within 110 flying hours following receipt of this ALER T SERVICE BULLETIN Revision 1, issued on the date indicated at the bottom of the page.

In order to ensure full compliance of the fleet within a controlled calendar time limit, Airbus Helicopters makes compliance with paragraph 3.B. of this AL ERT SERVICE BULLETIN mandatory, no later than within 6 months following receipt of this ALERT SERVICE BULLETIN Revision 1, issued on the date indicated at the bottom of the page.

Non-installed equipment:

Not applicable.

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 4/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub 

### 1.F. APPROVAL

Approval of modifications:

The information or instructions relate to modification 365A084711.00 which was approved on September 23, 2014 by EASA for helicopters of civil ve rsions subject to an Airw orthiness Certificate.

Approval of this document:

The technical information contained in this AL ERT SERVICE BULLETIN Revision 0 was approved on September 29, 2014 under the authority of EASA Design Organization A pproval No. 21J.056 for helicopters of civil versions subject to an Airworthiness Certificate.

The technical information contained in this AL ERT SERVICE BULLETIN Revision 0 was approved on September 29, 2014 under the prerogatives of the recognition of design capability FRA21J-002-DGA for French Government helicopters.

The technical information contained in this AL ERT SERVICE BULLETIN Revision 1 was approved on January 29, 2015 unde r the authority of EASA Design Organiza tion Approval No. 21J.056 for helicopters of civil versions subject to an Airworthiness Certificate.

The technical information contained in this AL ERT SERVICE BULLETIN Revision 1 was approved on January 29, 2015 under the prerogat ives of the recognition of desi gn capability FRA21J-002-DGA for French Government helicopters.



### 1.G. MANPOWER

For compliance with this ALERT SERVICE BULLETIN, Airbus Helicopters recommends the following personnel qualifications:

Qualification: 1 Mechanical Technician.

The time for the operations is given for information purposes, for a standard configuration.

Time for the operations: approximately 4 hours.



### 1.H. WEIGHT AND BALANCE

Not applicable.



### 1.I. EFFECT ON ELECTRICAL LOADS

Not applicable.



### 1.J. SOFTWARE MODIFICATION EMBODIMENT RECORD

Not applicable.R e R e 

### 1. K

1. L

1. M

e vision 0 2 0

e vision 1 2 0 

### K . REFE R

The doc

Mainten a

- MET: 2

- MET: 2

- MET: 2

Standar d

- MTC: 2



### L . DOCU M

A irbus H respect t

These d o



### M

. INTER C

Not appl

0 14-09-29

0 15-02-02 

### R ENCES

uments req u

a nce Manua

2 5.69.01.401

2 5.69.01.40 2

2 5.69.01.501

d Practices M

2 0.02.05.40 4



### M ENTS AF F

elicopters w

t o this ALER T

o cuments w i



### C HANGEA B

l icable. u ired for com

l (MET):

: Removal -

2 : Removal -

: Functional

M anual (MT C

4 : Joining - J o



### F ECTED

ill modify th e T SERVICE

i ll be issued



### B ILITY OR pliance with

Installation o Installation o
tests

C ):

o ining by bo l

e Maintenan c

BULLETIN.

subsequentl



### MIXABILI T

This documen this ALERT

o f the life raf t

o f the life raf t

l ts and nuts

c e Manual ( M

l y.



### T Y OF PA R 

# A

t is available o n SERVICE B

t container

t

M ET) and th e



### R TS 

# S B No.

n the internet : w

ULLETIN ar e

e Illustrated P 

# AS365

w ww.airbushelic o r e as follows :

P arts Catalo g 

# - 25.01. 4

Page 5

o pters.com/tec h :

g (IPC) with 

# 4 5

5 /15

h pub

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 6/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub 

### 2. MATERIAL INFORMATION

2.A. MATERIAL: PRICE - AVAILABILITY - PROCUREMENT

Price

For any information concerning the kits and/or compo nents, contact the Airbus Helicopters Network Sales and Customer Relations Department.

Availability

The kits and/or components will be delivered on customer's order.

Procurement conditions

Order the required quantity ( unless otherwise specified)

from

Airbus Helicopters Etablissement de Marignane Direction Ventes et Relations Client (ECR)

13725 MARIGNANE CEDEX

France



### NOTE 1

On the purchase order, pl ease specify the mode of transport, the destination and the serial numbers of the helicopters to be modified.



### NOTE 2

For ALERT SERVICE BULLETINS, order by:

Telex: HELICOP 410 969F Fax: +33 (0)4.42.85.99.96.



### 2.B. INFORMATION CONCERNING INDUSTRIAL SUPPORT

Not applicable.



### 2.C. MATERIAL REQUIRED FOR EACH HELICOPTER/COMPONENT

Kits or components to be ordered for one helicopter or one assembly:

Designation Qty New P/N Item Former

P/N → Instruction

Clip 2 365A844174.20 1 / /

Sleeve 2 365A844174.21 2 / /

Sheath 2 365A084711.AA 3 / /

Nut A/R ASN52320BH040N 4 / /

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 7/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub 

### 3. ACCOMPLISHMENT INSTRUCTIONS

3.A. GENERAL

Not applicable.



### 3.B. OPERATIONAL PROCEDURE

The modification procedure is described only for the RH life raft deployment control. Comply with the same operating procedure on the LH life raft.

The modification procedures for the RH and LH life ra ft deployment controls are identical for helicopters equipped with the LH life raft container POST MOD 0745C89, only the installations vary.



### NOTE 1

Modification 0745C89 consists in reducing the tensile loads of the life raft deployment controls, notably by adding a pulley on the LH container.

3.B.1. Preliminary steps (Figure 1)

- Install the access equipment for external life rafts.



### HANDLE THE LIFE RAFT (b) CONTAINER (a)

WITH CARE TO PREVENT OPERATION OF THE CYLINDER (d) CONTROL (FIGURE 1).

- Open the container (a) of the RH life raft (b) as per MET Work Card 25.69.01.401

(Details A and B, Figure 1). - Remove the blank (c) (Detail A, Figure 1).



### BEFORE ANY WORK ON THE LIFE RAFT (b) CONTAINER (a), INSTALL THE PIP PIN (e) FITTED WITH ITS PENNANT (f) ON THE CYLINDER HEAD (d).

- Take the pip pin (e) and its pennant (f) in the pocket located on the cover hatch (g)

(Area Z, Detail B, Figure 1) or in the lo cation provided inside the container (a). - Open the cover hatch (g) to gain access to the cylinder head (d) (Detail B, Figure 1). - Install the pip pin (e) fitted with its pennant (f) on the cylinder head (d) (Detail B, Figure 1). 

### WARNIN G

WARNIN G

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 8/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub 3.B.2. Installation of the sheath kit (Figures 2 to 5)

- Remove and check the nut (h) as per MTC Work Card 20.02.05.404 and discard it, if necessary

(Detail N, Figure 5). - Remove the washers (j), screw (k) and spacer (m) (Detail N, Figure 5). - Remove the connection kit (n) from the finger grip clip (p) (Details D and E, Figure 2). - Loosen and separate the 2 parts of the connection kit (n). - Disconnect the cylinder control cable (q) from the connection kit (n) (Detail E, Figure 2).



### NOTE 2

The connection kit (n) can be reassembled and left in place on the helicopter control cable (r).

- Perform a functional test of the life raft deploy ment control as per MET Work Card 25.69.01.501. - Position the 126 mm ± 1 mm (4.92 in; 5 in.) long sheat h (3) on the cylinder head (d) without inserting the

cylinder control cable (q) (Detail F, Figure 3). - Estimate the bend radius before installing the sheath (3) on the cylinder control cable (q). - In order to facilitate installation, manipulate the sh eath (3) by hand to give it the required bend radius.



### CAUTION

DO NOT PINCH OR BEND THE SHEATH (3)

DURING INSTALLATION. IT IS MANDATORY TO

REPLACE ANY PINCHED OR BENT SHEATH

WITH A NEW SHEATH.

- Install the clip (1) and sleeve (2) on the sheath (3) as per Detail H of Figure 3.



### NOTE 3

The clip (1) and sleeve (2) are installed on the sheath (3) with a functional clearance. They slide on the sheath (3).

- Insert the cylinder control cable (q) into the sheath (3) equipped with the clip (1) and sleeve (2). - Lock the clip (1) on the cylinder head (d), starting on the side pointing to the cylinder (s) as per Details G

and H of Figure 3. - Connect the cylinder control cable (q) and helicopter control cable (r) using the connection kit (n) as per

Detail M of Figure 4. - Torque-tighten the connection kit (n) as per Detail M of Figure 4.



### CAUTION

THE BARREL HEAD OF THE CONNECTION KIT (n) MUST BE INSTALLED ON THE TRACTION SIDE OF THE CYLINDER CONTROL CABLE (q) (DETAIL M, FIGURE 4).

- Install the connection kit (n) in the finger grip clip (p) (Detail M, Figure 4). - Install the spacer (m), screw (k), washers (j) and nut (h) or (4) (Detail N, Figure 5). - Ensure that the cylinder control c able (q) is positioned between the pulley of the cable guide (t) and spacer

(m) as per Detail N of Figure 5. - Torque-tighten the nut (h) or (4) as per MTC Work Card 20.02.05.404. - Ensure that the sheath (3) comes against the bottom of the housings of the clip (1) and sleeve (2).

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 9/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub - Ensure that the clearance (J1) between the sleev e (2) and the cable guide (t) is between 6 mm and 26 mm

(.236 in. to 1.023 in.) as per Cross-se ction L-L and Detail M of Figure 4. - Check the length (L1) 110 mm ± 10 mm (3.937 in. ; 4.724 in .) of the helicopter control cable (r) as per MET

Work Card 25.69.01.402 (Detail D, Figure 2).



### NOTE 4

The sheath kit installation may be slightly curved and the cylinder control cable (q) may be slack without affecting operation (Details N and O, Figure 5).

3.B.3. Final steps (Figures 1 and 5)

- Remove the pip pin (e) and its pennant (f) (Detail B, Figure 1). - Close the cover hatch (g) which enabled access to the cylinder head (d) (Detail O, Figure 5).



### CAUTION

DO NOT PINCH OR BEND THE SHEATH (3) OF THE CYLINDER CONTROL CABLE (q) WHEN CLOSING THE COVER HATCH (g) (DETAIL O, FIGURE 5).

- Put the pip pin (e) and its pennant (f ) in the pocket located on the cover hat ch (g) or in the location provided

inside the container (a) (Detail B, Figure 1). - Install the blank (c) (Detail A, Figure 1). - Close the container (a) as per MET Work Card 25.69.01.401. - Remove the access equipment for external life rafts.



### 3.C. IDENTIFICATION

Identification of this document:

Record compliance with this document, with the revision number, in the helicopter documents.

Identification of modificati ons in the documentation:

Record the embodiment of modification 365A 084711.00 in the helicopter documents.

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 10/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub 

### 3.D. OPERATING AND MAINTENANCE INSTRUCTIONS

Operating instructions:

Not applicable.

Maintenance instructions:

Remove and store the sheath kit before sending the life raft or cylinder for scheduled maintenance and/or repair.



### CAUTION

INSTALL THE SHEATH KIT WHEN INSTALLING

THE LIFE RAFT ON THE HELICOPTER.

The Maintenance Manual (MET) will incorporate the instructions as part of a future revision. Refer to the Maintenance Manual (MET) once these instructions are incorporated.

# ASB No. AS365-25.01.45

Revision 0 2014-09-29 Page 11/15

Revision 1 2015-02-02 This document is available on the internet : www.airbushelicopters.com/techpub Figure 1: AERAZUR life raft installation f

d b

e

g A rea Z (See Figure 2)

(See Figure 3) c

(See Figure 2) aR e R e

e vision 0 2 0

e vision 1 2 0 14-09-29

15-02-02 q

p q r

Figure 2: D p q r

n p

D isassembly o

This documen of life raft d e

(See Figu r 

# A

t is available o n e ployment c o r e 1)

(S

L1: 110 

# S B No.

n the internet : w o ntrol cables

e e Figure 1 )

mm ± 10 m m 

# AS365

w ww.airbushelic o n ) (Se e

m ( 3.937 in. 

# - 25.01. 4

Page 1 2

o pters.com/tec h e Figure 3)

; 4.724 in. ) 

# 4 5

2 /15

h pubR e R e

e vision 0 2 0

e vision 1 2 0 Step 1: the cyli n cylinde r d

(See F

0 14-09-29

0 15-02-02 Insert the cl

n der head ( d

r (s) side. 1

igure 4)

Figure ip (1) on

d ) on s 1

(See Figu

(See Figu r

3 : Installatio n Step 2: T holding i t head (d)

. d

re 4)

r e 4) T

t o h e 126

This documen n of the clip o (See Fi g

T ilt the clip ( 1

t against the

. 1

(See Fi g

ilt the clip (1

o lock it on t h

e ad (d).

3

2 ± 1 mm ( 4.9 (See Fi g 

# A

t is available o n o n the cylin d g ure 1)

1 ) while

cylinder s

g ure 2)

)

h e cylinder

1 2 in ; 5 in. ) g ure 5) 

# S B No.

n the internet : w d er head Step 3: L o cylinder h

Make sur e d

CROSS- S 

# AS365

w ww.airbushelic o o ck the clip (

h ead (d).

e it is correc t d 1

S ECTION 

# - 25.01. 4

Page 1 3

o pters.com/tec h 1) on the

t ly locked. s 3 

# 4 5

3 /15

h pubR e R e

e vision 0 2 0

e vision 1 2 0 F Dire

on t h

per c (q).

0 14-09-29

0 15-02-02 F igure 4: Me a

0.6

53

ction of trac t

h e cylinder

c ussion cabl e J

a surement o f n

r

t ion

e 1: 6 to 26 m m

p

f the cleara n m ( .236 to 1

.

This documen n ce between (See Fi g CROS S

(See Fi g . 023 in. ) t 

# A

t is available o n the sleeve a q g ure 3) S -SECTION

g ure 3) 2

(See F 

# S B No.

n the internet : w a nd the cont r i gure 5) 

# AS365

w ww.airbushelic o r ol cable gui d J1 

# - 25.01. 4

Page 1 4

o pters.com/tec h d e 2 t 

# 4 5

4 /15

h pubR e R e

e vision 0 2 0

e vision 1 2 0 Remove th (e) and its p (f) before c the cover h (left in pla c figure as a n example)

0 14-09-29

0 15-02-02 q

e pip pin

p ennant

c losing

h atch (g)

c e in the

n h j m k

Figure 5: E t

xample of a

This documen life raft cont (See Fi g

2 q

(See Fi g 

# A

t is available o n rol sheath ki t g ure 4)

2

g ure 4) 

# S B No.

n the internet : w t installation d 3 (See Figur e 

# AS365

w ww.airbushelic o 1 e 3) 

# - 25.01. 4

Page 1 5

o pters.com/tec h 3

g 

# 4 5

5 /15

h pub