### T.F.S. No. 00000589

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2010.06.15

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

SUPER PUMA NUMBER VERSIONS

Civil: C, C1, L, L1, L2 

# AS 332 67.00.40

Military: B, B1, F1, M, M1



# AS 532 67.00.27

Military: AC, AL, SC, UC, UE,

UL, A2, U2



### SUBJECT: ROTOR FLIGHT CONTROLS

Main rotor servocontrols: Swaging of attachment ball joints

REVISION No. DATE OF APPROVAL DATE OF ISSUE

Revision 0 On: June 14, 2010 2010.06.15

### T.F.S. No. 00000589

Approved under EASA DOA No. 21J.056. Page 2/39

2010.06.15 

### 1. PLANNING INFORMATION

1.A. EFFECTIVITY

1.A.1. Helicopters/installed equipment

Helicopters equipped with main rotor servocontrols MP/N SC7203-1 or SC7221-1 and identified with

the Serial Number (S/N) in the appended GOODRICH Service Bulletins No. SC7203-67-31-02

(servocontrols MP/N SC7203-1) or No. SC7221-67-39-02 (servocont rols MP/N SC7221-1), and not

marked with the letter "R" after the Serial Number (S/N).



### NOTE :

Servocontrols with the letter "R" after the Serial

Number (S/N) have already been made compliant.

1.A.2. Non-installed equipment

Main rotor servocontrols MP/N SC7203-1 or SC7221-1 and identified with the Serial Number (S/N) in

the appended GOODRICH Service Bulletins No. SC7203- 67-31-02 (servocontrols MP/N SC7203-1) or

No. SC7221-67-39-02 (servocontro ls MP/N SC7221-1), and not marked with the letter "R" after the

Serial Number (S/N).



### NOTE :

Servocontrols with the letter "R" after the Serial

Number (S/N) have already been made compliant.



### 1.B. ASSOCIATED REQUIREMENTS

Not applicable.



### 1.C. REASON

To check and restore conformity of the end fitting ball joints of the servocontrols identified in paragraph

1.A.

This ALERT SERVICE BULLETIN will form the subject of an EASA Airwor thiness Directive.

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### 1.D. DESCRIPTION

EUROCOPTER has been informed of non-compliant swaging of the end fitting ball joints on main rotor

servocontrols. Two servocontrol production batches have been identified by the equipment

manufacturer.

Investigations have revealed that the swaging load applied to the ball joints in these batches was 1.3

metric tons, instead of the specified 13 metric tons, which could allow t he ball joints to slip in service.

The slipping of the ball joint of the servocontrol up per end fitting can lead to a significant reduction in

the service life of this end fitting.

The slipping of the ball joint of the servocontrol lo wer end fitting does not significantly affect the service

life of this end fitting.

Consequently, EUROCOPTER renders the check of the ball joint of the upper end fitting and then the

return to conformity of the ball joints of both the upper and lower end fittings of the servocontrols

concerned, mandatory.



### 1.E. COMPLIANCE

EUROCOPTER renders compliance with th is ALERT SERVICE BULLETIN mandatory.

1.E.1. Compliance at the works

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

Not applicable.

1.E.1.b. Non-installed equipment

Not applicable.

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2010.06.15 1.E.2. Compliance in service: By the operator

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

Comply with paragraph 2. within 15 flight hours following receipt of this ALERT SERVICE

BULLETIN, issued on the date indi cated at the foot of the page.

Following compliance with paragraph 2:

- If the shifting D is more than or equal to 1 mm (.04 in.):

. If the servocontrol has logged 825 fli ght hours or more since new (TSN):

- Replace the servocontrol before resuming flights

- Return the servocontrol in accordance wi th the procedure described in paragraph 3.E.

. If the servocontrol has logged less than 825 flight hours since new (TSN):

- Flights can be resumed.

- Replace and return the servocontrol befo re 825 flight hours have been logged and at the

latest within 2 years following receipt of this ALERT SERVICE BU LLETIN, issued on the

date indicated at the foot of the page.

- If the shifting D is less than 1 mm (.04 in.):

. At the latest within 2 years following rece ipt of this ALERT SERVICE BULLETIN, issued

on the date mentioned at the f oot of the page, replace and return the servocontrol in

accordance with paragraph 3.E, or comp ly with appended GOODRICH Service Bulletin

No. SC7203-67-31-02 (servocontrols MP /N SC7203-1) or No. SC7221-67-39-02

(servocontrols MP/N SC7221-1).

. Pending the return of the servocontrol or compliance with the GOODRICH Service

Bulletin, periodically check the shifting value D of the ball joint of the upper end fitting

(compliance with paragraph 2. of this ALERT SERVICE BULLETIN) at intervals not

exceeding 300 flight hours.

If the shifting D is more than or equal to 1 mm (.04 in.): Replace and return the

servocontrol in accordance with the proc edure described in paragraph 3.E. within 525

flight hours following this check.

1.E.2.b. Non-installed equipment

Return the servocontrols in accordance with t he procedure described in par agraph 3.E. or comply

with the appended GOODRICH Service Bulletins No. SC7203-67-31-02 (servocontrols MP/N

SC7203-1) or No. SC7221-67-39-02 (servocontrols MP/N SC7221-1), before installation and at the

latest within 2 years following receipt of th is ALERT SERVICE BULLETIN issued on the date

indicated at the foot of the page.

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### 1.F. APPROVAL

1.F.1. Approval of modifications

Not applicable.

1.F.2. Approval of this Service Bulletin

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

on June 14, 2010 under th e authority of EASA Design Organisation Approval No. 21J.056 for civil

version helicopters subject to an Airworthiness Certificate.

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

on June 14, 2010 by the EUROCOPTER Airworthiness Department for military version helicopters.



### 1.G. MANPOWER

1.G.1. Qualification

EUROCOPTER recommends that compliance with this ALERT SERVICE BULL ETIN is ensured by

personnel qualified as follows:

Qualifications: 1 mechanic for the check.

1.G.2. Time for the operations

The times for the operations are given for info rmation only and for a standard configuration.

Times for the operations: approximately 30 minutes to check one servocontrol.



### 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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2010.06.15 

### 1.K. REFERENCES

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

For AS332 C, C1, L, L1, B, B1, F1, M, M1 and AS532 AC, AL, SC, UC, UE and UL helicopter

versions:

Maintenance Manual (MET): Work Card 29.00.00.3 01: Hydraulic power - General instructions.

Work Card 67.00.00.301: General instructions.

For AS332 L2 and AS532 A2 and U2 helicopter versions:

Maintenance Manual (MMA): Task 29-00-00-611: General and Standard Maintenance Instructions

Task 67-00-00-611: General instructions.



### 1.L. OTHER DOCUMENTS AFFECTED

Not applicable.



### 1.M. TOOLING AFFECTED

Not applicable.



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

Not applicable.

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### 2. ACCOMPLISHMENT INSTRUCTIONS

2.A. GENERAL

Read and comply with the general hydraulic instruct ions as per MET Work Card 29.00.00.301 or MMA

Task 29-00-00-611.

Read and comply with the general instructions for rotors as per MET Work Card 67.00.00.301 or MMA

Task 67-00-00-611.



### 2.B. OPERATIONAL PROCEDURE

2.B.1. Preliminary steps

- Install the access equipment.

- Open the MGB and sliding cowlings.

- Install the engine cowling walkways.

2.B.2. Check of ball joint of upper end fitting. Figure 1

- For each servocontrol (a) concerned:

. Measure, using a set of feeler gages, the shi fting value D between the outer ring of the ball joint

(b) and the face (c) of the end fitting. (Detail A, Figure 1)

- Check the two faces of the upper end fitting of servocontrol (a).

. Interpret the results according to the instructions in paragraph 1.E.2.a.

2.B.3. Final steps

- Remove the engine cowling walkways.

- Close the MGB and sliding cowlings.

- Remove the access equipment.



### 2.C. IDENTIFICATION

Record first compliance with this ALERT SERVICE BULLETIN in the aircraft documents.



### 2.D. OPERATING AND MAINTENANCE INSTRUCTIONS

Not applicable.

### T.F.S. No. 00000589

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2010.06.15 Note: Max. tolerance after swaging D = 0.4 mm (.0157 in)

Figure 1 

### a b



## D

b c

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### 3. MATERIAL INFORMATION

3.A. MATERIAL: PRICE AND AVAILABILITY

3.A.1. Cost

Refer to paragraph 3.B. of the appended GOOD RICH Service Bulletins No. SC7203-67-31-02

(servocontrols MP/N SC7203-1) or No. SC7221-67-39-02 (servocontrols MP/N SC7221-1).

3.A.2. Availability

Refer to paragraph 3.C. of the appended GOOD RICH Service Bulletins No. SC7203-67-31-02

(servocontrols MP/N SC7203-1) or No. SC7221-67-39-02 (servocontrols MP/N SC7221-1).



### 3.B. INFORMATION CONCERNING INDUSTRIAL SUPPORT

Not applicable.



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

3.C.1. Kits or components to be ordered for one helicopter or one assembly

Material P/N Qty Item Keyword Former P/N Instructions

SC7203-1 AR - Main rotor servocontrol SC7203-1 To be returned to

GOODRICH as per

paragraph 3.E.

SC7221-1 AR - Main rotor servocontrol SC7221-1 To be returned to

GOODRICH as per

paragraph 3.E.

3.C.2. Material to be ordered separately

Refer to paragraph 3.A. of the appended GOOD RICH Service Bulletins No.SC7203-67-31-02

(servocontrols MP/N SC7203-1) or No. SC7221-67-39-02 (servocontrols MP/N SC7221-1).

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2010.06.15 3.C.3. Products to be ordered separately

The products identified by an asterisk "*" or r equired for compliance with the Tasks and/or

Work Cards listed in paragraph 1.K., can be ordered from:

INTERTURBINE AVIATION LOGISTICS,

Website: http://www.interturbine.com

Telephone : +49.41.91.809.300

AOG : +49.41.91.809.444



### 3.D. PROCUREMENT CONDITIONS

Refer to paragraph 3. of the appended GOODRICH Service Bulletins No. SC7203-67-31-02

(servocontrols MP/N SC7203-1) or No. SC7221-67-39-02 (servocontrols MP/N SC7221-1).



### 3.E. MATERIAL TO BE RETURNED

Refer to paragraph 3. of the appended GOODRICH Service Bulletins No. SC7203-67-31-02

(servocontrols MP/N SC7203-1) or No. SC7221-67-39-02 (servocontrols MP/N SC7221-1).



### 4. APPENDIX

GOODRICH Service Bulletin No. SC7203-67-31-02 (valid for servocontrols MP/N SC7203-1) in

Appendix 1.

(14 pages)

GOODRICH Service Bulletin No. SC7221-67-39-02 (valid for servocontrols MP/N SC7221-1) in

Appendix 2.

(13 pages)

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