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# EMERGENCY 

# ALERT SERVICE BULLETIN

SUBJECT : ROTOR FLIGHT CONTROLS

Servo-controls: Crimping of the end-fitting ball joints

Version(s) AIRCRAFT

CONCERNED NUMBER Civil Militar y AS332 67.00.45 C, C1, L, L1, L2 B, B1, M, M1, F1

AS532 67.00.31 AC, AL, SC, UC, UE, UL, A2, U2

SA330 67.19 J Ba, Ca, Ea, L, Jm, S1, Sm



### Revision No. Date of issue

Revision 0 2012-11-12

Revision 1 2012-12-05



### Summary :

Check for crimping on the ball joints of the servo- control end-fittings specified in paragraph 1.A.



### Compliance :

EUROCOPTER makes compliance with this ALERT SERVICE BULLETIN mandatory. For the attention of.



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### 1. PLANNING INFORMATION

1.A. EFFECTIVITY

1.A.1. Helicopters/installed equipment

1.A.1.a. AS332 and AS532 helicopters

Helicopters equipped with main servo-controls whic h have been overhauled or r epaired at UTC Actuation Systems / Goodrich Actuation Systems at Vernon (France) between June 01, 2008 and September 15, 2012, and which bear the following part numbers: - SC7202, SC7202-X (X for all part numbers) - SC7203, SC7203-X (X for all part numbers) - SC7221, SC7221-X (X for all part numbers)

OR Helicopters equipped with servo-controls whose part numbers and serial numbers are specified in Appendix 1.

Servo-controls with part numbers SC7203-1 and SC7221-1 which have not been overhauled or repaired after compliance with ALERT SERVICE BULLETIN No . 67.00.40 (AS332) or No. 67.00.27 (AS532) are not concerned by this ALERT SERVICE BULLETIN.

1.A.1.b SA330 helicopters

Helicopters equipped with main servo-controls whic h have been overhauled or r epaired at UTC Actuation Systems/Goodrich Actuation Systems at Ve rnon (France) between June 01, 2008 and September 15, 2012, and which bear the following part numbers: - SC7111, SC7111-X (X for all part numbers) - SC7112, SC7112-X (X for all part numbers)

OR Helicopters equipped with servo-controls whose part numbers and serial numbers are specified in Appendix 1.

1.A.2. Non-installed equipment

1.A.2.a AS332 and AS532 helicopters

Main servo-controls which have been overhauled or repaired at UT C Actuation Systems / Goodrich Actuation Systems at Vernon (France) between June 01, 2008 and September 15, 2012, and which bear the following part numbers: - SC7202, SC7202-X (X for all part numbers) - SC7203, SC7203-X (X for all part numbers) - SC7221, SC7221-X (X for all part numbers)

OR Helicopters equipped with servo-controls whose part numbers and serial numbers are specified in Appendix 1.

Servo-controls with part numbers SC7203-1 and SC7221-1 which have not been overhauled or repaired after compliance with ALERT SERVICE BULLETIN No . 67.00.40 (AS332) or No. 67.00.27 (AS532) are not concerned by this ALERT SERVICE BULLETIN..



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Main servo-controls which have been overhauled or repaired at UT C Actuation Systems / Goodrich Actuation Systems at Vernon (France) between June 01, 2008 and September 15, 2012, and which bear the following part numbers: - SC7111, SC7111-X (X for all part numbers) - SC7112, SC7112-X (X for all part numbers)

OR Helicopters equipped with servo-controls whose part numbers and serial numbers are specified in Appendix 1.



### 1.B. ASSOCIATED REQUIREMENTS

Not applicable.



### 1.C. REASON

Revision 0: EUROCOPTER has been informed of missing crimping on ball joints of servo-control end-fittings.

The slipping of the ball joint of the upper end-fitting of the PUMA and SUPER PUMA main servo-control can lead to a significant reduction in the service life of this end-fitting. The slipping of the ball joint of the lower end-fitting of the PUMA and SUPER PUMA main servo-control does not significantly affect the service life of this end-fitting.

Consequently: EUROCOPTER has made the check for crimping of the ball joint of the upper end-fitting and then, if necessary, the return to conformity of the crimping of the ball joints of both the upper and lower end-fittings of the servo-controls concerned, mandatory.

Revision 1: The purpose of Revision 1 is to specify that the additi onal list of main servo-control serial numbers given in the Appendix is an additional effectivity condition which is independent from the affected servo-controls listed in paragraph 1.A. Consequently, the “AND” condition of paragraph 1.A. has been replaced with the “OR” condition. Furthermore, Revision 1 specifies in the effectivity par agraph that only the main servo-controls which have been overhauled or repaired at Vernon (France) ar e concerned by this AL ERT SERVICE BULLETIN.

Revision 1 of this ALERT SERVICE BULLETIN affects compliance with Revision 0.



### 1.D. DESCRIPTION

- Visual check of the ball joint of t he main servo-control upper end-fitting..



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### 1.E. COMPLIANCE

1.E.1. Compliance at the works

Not applicable.

1.E.2. Compliance in service

1.E.2.a. Helicopters/installed equipment:

Comply with paragraphs 3.A. (General ), 3.B.1. (Preliminary steps) and 3. B.2.a. (Check of the ball joint crimping) within 85 flying hours and no later than 12 months following receipt of this ALERT SERVICE
BULLETIN, issued on the date indi cated at the bottom of the page.

Following compliance with paragraph 3.B.2.a.:

Condition Action If the slipping of the ball joint is more than or equal to 1 mm No later than within 170 flying hours and no later than 12 months following receipt of this ALERT SERVICE BULLETIN, issued on the date indicated at the bottom of the page:

3⁄4 Remove the servo-control as per Work Card or Task specified in paragraph 1.K. and return it as per paragraph 2. for replacement of the ball joint and the end-fitting.

3⁄4 Comply with paragraph 3.B.3. (Final steps) If the ball joint is not crimped

If the slipping of the ball joint is less than

1 mm No later than within 170 flying hours and no later than 12 months following receipt of this ALERT SERVICE BULLETIN, issued on the date indicated at the bottom of the page:

3⁄4 Remove the servo-control as per Work Card or Task specified in paragraph 1.K. and return it as per paragraph 2. for ball joint crimping.

3⁄4 Comply with paragraph 3.B.3. (Final steps).

OR

3⁄4 Comply with paragraphs 3.B.2.b. (Crimping of the servo-control ball joint), 3.B.2.c. (Check of the lower end-fitting) and 3.B.3. (Final steps).

If the ball joint is crimped 3⁄4 Comply with paragraph 3.B.3. (Final steps). Or

Or And

And.



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Comply with paragraphs 3.A. (General) and 3.B.2.a. (Check of the ball joint crimping) before installation on the helicopter and no later than 12 months following rece ipt of this ALERT SERVICE BULLETIN, issued on the date indicated at the bottom of the page.

Following compliance with paragraph 3.B.2.a.:

Condition Action If the slipping of the ball joint is more than or equal to 1 mm Before installation on the helicopter and no later than 12 months following receipt of this ALERT SERVICE BULLETIN, issued on the date indicated at the bottom of the page:

3⁄4 Return the servo-control as per paragraph 2 for replacement of the ball joint and the end-fitting. If the ball joint is not crimped

If the slipping of the ball joint is less than

1 mm Before installation on the helicopter and no later than 12 months following receipt of this ALERT SERVICE BULLETIN, issued on the date indicated at the bottom of the page:

3⁄4 Return the servo-control as per paragraph 2 for ball joint crimping.

OR

3⁄4 Comply with paragraphs 3.B.2.b. (Crimping of the servo-control ball joint) and 3.B.2.c. (Check of the lower end-fitting).

If the ball joint is crimped 3⁄4 Comply with paragraph 3.B.2.c. (Check of the lower end-fitting). Or Or And

And.



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### 1.F. APPROVAL

Approval of modifications :

Not applicable.

Approval of this document :

The technical information contained in this Emergency ALERT SERVICE BULLETIN Revision 0 was approved on November 12, 2012 under the authority of EASA Design Organi zation Approval No. 21J.056 for helicopters of civil versions subject to an Airworthiness Certificate.

The technical information contained in this Emergency ALERT SERVICE BULLETIN Revision 0 was approved on November 12, 2012 under the prerogativ es of the recognition of design capability FRA21J-002-DGA for French Government helicopters.

The technical information contained in this Emergency ALERT SERVICE BULLETIN Revision 0 was approved on November 12, 2012 by the EUROCOPTER Airworthiness Department for export military

versions.

The technical information contained in this Emergency ALERT SERVICE BULLETIN Revision 1 was approved on December 05, 2012 under the authority of EASA Design Org anization Approval No. 21J.056 for helicopters of civil versions subject to an Airworthiness Certificate.

The technical information contained in this Emergency ALERT SERVICE BULLETIN Revision 1 was approved on December 05, 2012 under the prerogativ es of the recognition of design capability FRA21J-002-DGA for French Government helicopters.

The technical information contained in this Emergency ALERT SERVICE BULLETIN Revision 1 was approved on December 05, 2012 by the EUROCOPTER Airworthiness Department for export military

versions.



### 1.G. MANPOWER

For compliance with this ALERT SERVICE BULLETIN:

Qualification: 1 Mechanica l Engineering Technician.

The time for the operations is given for information purposes, for a standard configuration. Time for the operations: Approximately 1 hour to inspect the main servo-controls.



### 1.H. WEIGHT AND BALANCE

Not applicable.



### 1.I. EFFECT ON ELECTRICAL LOADS

Not applicable.



### 1.J. SOFTWARE MODIFICATION EMBODIMENT RECORD

Not applicable..



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### 1.K. REFERENCES

The following documents are necessary for comp liance with this ALERT SERVICE BULLETIN:

AS532 helicopter versions AC, AL, SC, UC, UE, UL and AS332 helicopter versions B, B1, L, L1, M, M1, F1, C, C1: Maintenance Manual (MET): Work Card 29.00.00.301: Hydraulic pow er systems - General instructions

Work Card 67.00.00.301: General - General instructions

Work Card 67.30.00.401 or 67.30.01.401: Ma in servocontrol: Removal - Installation

Component Maintenance Manual (CMM) dedicate d to the servo-control part number.

AS532 helicopter versions A2, U2 and AS332 helicopter version L2: Maintenance Manual (MMA):

Task 29-00-00-611: General and Standard Maintenance Instructions

Task 67-00-00-611: General Instructions

Task 67-31-00-021 and Task 67-31-00-421: Main Servocontrol: Removal - Installation

Component Maintenance Manual (CMM) dedicate d to the servo-control part number.

SA330 helicopters:

Maintenance Manual: Work Card 29.00.301 or equivalent according to t he helicopter version: General and Standard Maintenance

Instructions Work Card 67.00.301 or equivalent according to the helicopter version: General Instructions Work Card 67.30.401 or equivalent according to t he helicopter version: Main Servocontrol: Removal -

Installation

OR

Work Card 350A: General instructions

Work Card 410A: General instructions

Work Card 362B: Main Servocontrol: Removal - Installation

OR Work Card 29-00-00, 3-1 or equivalent according to the helicopter version: General and Standard

Maintenance Instructions Work Card 67-00-00, 3-1 or equivalent according to the helicopter version: General Instructions Work Card 67-30-00, 4-1 or equivalent according to the helicopter version: Main Servocontrol: Removal -

Installation

Component Maintenance Manual (CMM) dedicate d to the servo-control part number.



### 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

Price The return to conformity of the servo-control ba ll joint end-fittings is performed by UTC Actuation Systems / Goodrich Actuation System s free of charge for the operators.

Availability

The servo-controls will be returned to conformity within 2 weeks from rece ipt of the material and a zero-value

order.

Procurement conditions Refer to paragraph 2.D.



### 2.B. INFORMATION CONCERNING INDUSTRIAL SUPPORT

Not applicable.



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

Not applicable.



### 2.D. MATERIAL TO BE RETURNED

The orders and materials must be sent to:

UTC Actuation Systems / Good rich Actuation Systems Département EADS Rechange / Réparations 43, rue des Près - 27950 SAINT-MARCEL - France E-mail for spares: pascaline.mariaud@utas.utc.com Telephone: +33 2 32 64 70 78 E-mail for repairs: cyril.morice@utas.utc.com Telephone: +33 1 34 32 54 38.



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### 3. ACCOMPLISHMENT INSTRUCTIONS

3.A. GENERAL

Read and comply with the general instructions concerning hydraulic power systems (ref er to paragraph 1.K.). Read and comply with the general instructions conc erning flight controls (re fer to paragraph 1.K.).



### 3.B. OPERATIONAL PROCEDURE

3.B.1. Preliminary steps

- Install the access equipment. - Open the MGB and sliding cowlings. - Install the engine cowling walkways.

3.B.2. Operational procedure

3.B.2.a. Check of the ball joint crimping (Figure 1)

- Visually check for crimping on the ball joint of the upper end-fitting. Use a light source for better

interpretation.



### NOTE

Details A and B of Figure 1 show one non-crimped ball joint and one crimped ball joint.

If the ball joint is not crimped: . Visually check for slipping of the ball joint. . Inform the Eurocopter Technical Suppo rt Department at the following address:

E-mail: Hydraulics.technical-support@eurocopter.com

- Interpret the results in accordance with the inst ructions given in paragra ph 1.E.2.a. or 1.E.2.b.

3.B.2.b. Crimping of the servo-control ball joint

- If not removed previously, remove the servo-contro l as per Work Card (refer to paragraph 1.K.). - Crimp the ball joint in accordance with the doc umentation of equipment manufacturer UTC Actuation

Systems / Goodrich Actuation Systems (refer to the Component Maintenance Manual (CMM) of the servo-control concerned).

3.B.2.c. Check of the lower end-f itting of the main servo-control

- Visually check for crimping on the ball joint of t he lower end-fitting. Use a light source for better

interpretation.

3⁄4 If the ball joint is not crimped: . Crimp the ball joint in accordance with the documentation of equipment manufacturer UTC

Actuation Systems / Goodrich Actuation Systems (refer to the Component Maintenance Manual (CMM) of the servo-control concerned). . Inform the Eurocopter Technical Suppo rt Department at the following address:

E-mail: Hydraulics.technical-support@eurocopter.com

3⁄4 If the ball joint is crimped, no action on the ball joint of the lower end-fitting is required..



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- If previously removed, install a main servo-control whic h is not or no longer subject to the instructions of

this ALERT SERVICE BULLET IN as per Work Card (refer to paragraph 1.K.). - If previously installed, remove the engine cowling walkways. - If previously opened, close the MGB and sliding cowlings. - If previously installed, remove the access equipment. - Comply with paragraph 3.C.



### 3.C. IDENTIFICATION

Identification of this document :

Record first compliance with this ALERT SER VICE BULLETIN in the helicopter documents. After compliance with the operational procedure (§3.B. 3) or after receipt of the equipment repaired by equipment manufacturer UTC Actuation Systems / Goodrich Actuation Systems, record compliance with this ALERT SERVICE BULLETIN on the Log Card of the servo-control.



### 3.D. OPERATING AND MAINTENANCE INSTRUCTIONS

Not applicable..



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Figure 1 a



# A B.



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### 4. APPENDIX 1

Additional list of servo-control part numbers and their serial numbers (S /N) also concerned by compliance

with this ALERT SERVICE BULLETIN.



### NOTE

All servo-controls listed below have been overhauled or repaired at UTC Actuation Systems/Goodrich Actuation Systems at Vernon (France).

PUMA main servo-controls :

SUPER PUMA main servo-controls :.



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