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# EMERGENCY



# ALERT SERVICE BULLETIN

SUBJECT: EQUIPMENT AND FURNISHINGS - Emergency floatation gear

Check of emergency floatati on gear installation

AIRCRAFT

CONCERNED NUMBER Version(s)

Civil Militar y

AS332 25.02.76 L1 M1

AS532 25.01.62 AL, UL

EC225 25A142 LP

EC725 25A060 AP



### Revision No. Date of issue

Revision 0 2013-09-25



### Summary:

Check of the routing of the straps on the hinged rods of the emergency floatation gear LH and RH rear cradles.



### Compliance:

EUROCOPTER renders compliance with this ALERT SER VICE BULLETIN mandatory, ex cept for paragraph 3.D. For the attention of

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### 1. PLANNING INFORMATION

1.A. EFFECTIVITY

1.A.1. Helicopters/installed equipment

EC225 helicopters version LP and EC725 helicopters ve rsion AP fitted with emergency floatation gear.

AS332 helicopters versions L1 and M1, and AS532 helicop ters versions AL and UL fitted with emergency

floatation gear POST MOD OP26277 (installation of emergency floatation gear mobile parts).



### NOTE 1

Refer to the aircraft individual inspection record (RIC AMS)

and the aircraft log book to identify the actual modification

status of the helicopter.

1.A.2. Non-installed equipment

Not applicable.



### 1.B. ASSOCIATED REQUIREMENTS

Not applicable.



### 1.C. REASON

On several recently delivered EC225 helicopters, it was ob served that the routing of the straps on the hinged

rods of the emergency floatation gear rear cradles wa s incorrect. The straps were routed over the hinged

rod's median plate (Photo 2, Figure 1) in stead of under it (Photo 1, Figure 1).

The investigations have revealed that, for the helicopters listed in paragraph 1.A.1., the descriptive content of

the maintenance Work Cards and Tasks relevant to t he Removal/Installation of the emergency floatation

gear rear cradle assembly are not specific enough, which can lead to an incorrect routing of the straps at the

cradle hinged rods.



### NOTE 2

This lack of precision was not observed in the

Removal/Installation Task for the rear cradle on the AS332

helicopter version L2 or AS532 helicopter versions A2 and

U2.

In the event of ditching, the incorrect routing of the straps on the articulated rods may cause the rods and/or

straps to fail, thus modifying the pos ition of the floats. Incorrect float pos ition can lead to the helicopter being

unstable on the water.

Consequently, EUROCOPTER renders mandatory the check of the routing of the straps on the rods of the

floatation gear's rear cradles.

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### 1.D. DESCRIPTION

Compliance with this ALERT SERVICE BULLETIN consists in:

- checking the routing of the straps on the rods of the floatation gear's rear cradles,

- making the installation compliant if necessary.



### 1.E. COMPLIANCE

1.E.1. Compliance at the works

Not applicable.

1.E.2. Compliance in service

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

Helicopters/installed equipment:

- Comply with paragraph 3.B.1. at the latest during the next inspection before the first flight of the day

following receipt of this ALERT SERVICE BULLETIN issued on the date indicated at the bottom of the

page.

- If necessary, make the installation compliant with th e definition as per paragraph 3.B.2. before the next

offshore flight.

Non-installed equipment:

Not applicable.



### 1.F. APPROVAL

Approval of modifications:

Not applicable.

Approval of this document:

The technical information contained in this AL ERT SERVICE BULLETIN Revision 0 was approved

on September 25, 2013 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 25, 2013 by the EUROCOPTER Airworth iness Department for export military versions.

The technical information contained in this AL ERT SERVICE BULLETIN Revision 0 was approved

on September 25, 2013 under the prerogatives of the recognition of design capability FRA21J-002-DGA for

French Government helicopters.

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### 1.G. MANPOWER

For compliance with this ALERT SERVICE BULLETIN, EUROCOPTER 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 15 mi nutes for the check (paragraph 3.B.1.)

- approximately 30 minutes to make the in stallation compliant (paragraph 3.B.2.)



### 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

The documents required for compliance with this ALERT SERVICE BULLETIN are as follows:

MET: 25.62.00.402: Emergency floatation gear - Supp ort assembly - cradles: Removal - Installation

MMA: 25-62-01-064: Emergency floatation gear - Remova l - Installation of the rear cradle assembly

MTC: 20.02.05.404: Joining - Joining by bolts and nuts

MTC: 20.02.06.404: Safetying and locking as semblies - Safetying with cotter pins



### 1.L. DOCUMENTS AFFECTED

Not applicable.



### 1.M. INTERCHANGEABILITY OR MIXABILITY OF PARTS

Not applicable.

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### 2. MATERIAL INFORMATION

2.A. MATERIAL: PRICE - AVAILABILITY - PROCUREMENT

For any information concerning the kits and/or comp onents, contact the EUROCOPTER Network Sales &

Customer Relations Department.

Order the required quantity ( unless otherwise specified)

from

EUROCOPTER

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

aircraft 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

Material to be ordered separately:

Key word Qty New P/N Item Former P/N → Instruction

Cotter pin ALD 23310CA025030 1 23310CA025030 To be ordered if

complying with

paragraph

3.B.2.

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This document is available on the internet: www.eurocopter.com/techpub Products to be ordered separately:

As per Work Cards and Tasks mentioned in th is ALERT SERVICE BULLETIN and listed below:

Key word Qty Product P/N CM Item

Snap wire dia.0.3 mm (.012 in.) A/R 23321 / 2

The products can be ordered separately from the INTERTURBINE AVIATION LOGISTICS company.

Website: http://www.interturbine.com

Telephone: +49.41.91.809.300

AOG: +49.41.91.809.444



### 2.D. MATERIAL TO BE RETURNED

Not applicable.

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### 3. ACCOMPLISHMENT INSTRUCTIONS

3.A. GENERAL

NOTE

Figures 1 to 3 illustrate the LH cradle. The RH cradle

installation is identical.



### 3.B. OPERATIONAL PROCEDURE

3.B.1. Check (Figure 1)

- For each LH and RH rear cradle, check the strap inst allation (a) on the rods (b). The strap (a) must be

installed in compliance with Photo 1, Figure 1. (T he strap (a) must not be covered by the plate (c)).

. If the strap assembly (a) is correc tly installed (Photo 1), leave as is.

. If at least one strap (a) is incorrectly installed (P hoto 2), install the strap(s) (a) in compliance with

Photo 1 and as per paragraph 3.B.2.:

3.B.2. Compliance with definition (Figures 1 to 3)

3.B.2.a. Compliance with the definition of the front strap (Figures 1 and 2)

- Unlock the rod (b) from the spring (w) (Detail B, Figure 2).

- Disconnect the reel (h) from the rod (b):

. remove and discard the pin (d),

. remove the nut (e), washer (f) and bolt (g).

- Take the reel (h) out of the rod (b).

- Remove the strap (a) from the reel (h) without removing the strap (v).

- Route the strap (a) in compliance with Photo 1, Figure 1 and Detail B, Figure 2.

- Install the strap (a) (Detail B, Figure 2) on the reel (h). The strap (v) must be positioned between the two

strands of strap (a).

- Insert the reel (h) in the rod (b).

- Connect the reel (h) to the rod (b):

. install the bolt (g), washer (f) and nut (e),

. torque-tighten the nut (e) as per Figure 2,

. lock the nut (e) using a pin (1) as per MTC Work Card 20.02.06.404.

- Pivot the rod (b) towards the inte rior while coiling the strap (v).

- Lock the rod (b) with the spring (w).

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This document is available on the internet: www.eurocopter.com/techpub 3.B.2.b. Compliance with the definition of the rear strap (Figures 1 and 3)

- Disconnect the reel (s) (Detail C, Figure 3) from the rod (b):

. cut the snap wires (i) and (j),

. unhook the elastic cord (k),

. remove and discard the pin (m),

. remove the nut (n), washer (p), bolt (q) and stop (r).

- Take the reel (s) out of the rod (b).

- Remove the strap (a) from the reel (s) without removing the strap (u).

- Route the strap (a) in compliance with Photo 1, Figure 1 and Detail C, Figure 3.

- Install the strap (a) (Detail C, Figure 3) on the reel (s). The strap (u) must be positioned between the two

strands of strap (a).

- Insert the reel (s) in the rod (b).

- Connect the reel (s) to the rod (b):

. install the stop (r), bolt (q), washer (p) and nut (n),

. torque-tighten the nut (n) as per Figure 3,

. lock the nut (n) using a pin (1) as per MTC Work Card 20.02.06.404.

- Position the stop (r) of rod (b ) in contact with rod (t).

- Hook the elastic cord (k) in position.

- Coil the strap (u) around the rod (b).

- Loop the snap wire (2) around three times in order to hold the strap (u) onto the

rod (b) (Detail D, Figure 3).

- Loop snap wire (2) ten times around the lower rear fi tting, passing over rod (t) and into the holes of

rod (b) (Detail E, Figure 3).



### 3.C. IDENTIFICATION

Identification of this document:

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



### 3.D. OPERATING AND MAINTENANCE INSTRUCTIONS

3.D.1. Operating instructions

Not applicable.

3.D.2. Maintenance instructions

When removing or installing the rear cradles of the emergency flotation gear (as per MET Work

Card 25.62.00.402 or MMA Task 25-62-01-064):

- remove and install the straps (a) in complianc e with paragraph 3.B.2. of this ALERT SERVICE

BULLETIN.

The Maintenance Manual (MET) and Aircraft Maintenance Manual (MMA) will integrate these

instructions in a future revision. Following the integration of thes e instructions in the Maintenance

Manual (MET) and Aircraft Maintenance Manual (MMA), refer to them.

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This document is available on the internet: www.eurocopter.com/techpub Figure 1 - Check of the installation 

## PHOTO 2: INCORRECT INSTALLATION

a

b c 

## PHOTO 1: CORRECT INSTALLATION

c b

a b

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This document is available on the internet: www.eurocopter.com/techpub Figure 2 - Installation of the front strap a

a b b

g

h d

1

e f v w

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This document is available on the internet: www.eurocopter.com/techpub Figure 3 - Installation of the rear strap a b

q

s m

1

n p r

a b u

u t

b j

2 i

2 j

2 i

2 k

t