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1. DESCRIPTION This sheet transmits Revision 02 to Service Bulletin 500-55-A004.
This is a complete reissue of the Service Bulletin.
This revision incorporates the information presented in the Information Notice related to the previous issues of this Service Bulletin, as listed below:
None.
2. ADDITIONAL ACTION Aircraft that have complied with the previous issue of this service bulletin do not need any additional action.
3. RECORD OF REVISION Basic issue: 21/Jul/2014 Revision 01: 24/Jul/2014 Revision 02: 25/Jul/2014
4. HIGHLIGHTS The topics, affected pages, and a brief description of the content-related changes introduced by this revision are presented below.
Revision bars are put in the left margin of each page to show the location of the significant changes. Text displacement and text format changes are not indicated.
TOPIC/PAGE DESCRIPTION OF REVISION
1. PLANNING INFORMATION
1.A. SB EFFECTIVITY / 01 Added aircraft to the SB effectivity.
1.C. REASON / 02 Added reason for Revision 02.
1.E. COMPLIANCE / 03 Changed the Compliance.
3. ACCOMPLISHMENT INSTRUCTIONS Page 8 Editorial change.
TM ÀREA DE NÃO INTERFERÊNCIA
TRANSMITTAL LETTER SB No.: 500-55-A004 PAGE: 1 of 1 Copyright © 2014 by Embraer S.A. All rights reserved.
STABILIZERS - INSPECTION AND REPLACEMENT OF THE BARREL SELF-LOCKING NUT In connection with the use of this document, Embraer does not provide any express or implied warranties and expressly disclaims any warranty of merchantability or fitness for a particular purpose.
1. PLANNING INFORMATION A. SB EFFECTIVITY
(1) PART I: INSPECTION OF BARREL SELF-LOCKING NUTS Aircraft affected:
MODEL SN EMB-500 ’Phenom 100’ 50000218 thru 50000333, 50000336, 50000337, 50000339, and 50000341.
(2) PART II: REPLACEMENT OF THE BARREL SELF-LOCKING NUT Aircraft affected:
MODEL SN EMB-500 ’Phenom 100’ 50000218 thru 50000333, 50000336, 50000337, 50000339, and 50000341.
In-production effectivity:
The subject presented in this bulletin does not affect any in-production aircraft.
B. CONCURRENT REQUIREMENTS None.
TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 SB No.: 500-55-A004 PAGE: 1 of 18 Copyright © 2014 by Embraer S.A. All rights reserved.
C. REASON
(1) HISTORY At the assembly line, during and inspection on the horizontal stabilizer-to-vertical stabilizer attachment, barrel self-locking nuts with cracks have been found. The investigation determined that the cracks were a result of hydrogen embrittlement and related to the nut manufacturing process. Embraer is working with the barrel self-locking nuts supplier to identify the affected batch.
(2) OBJECTIVE To inspect the barrel self-locking nuts of the horizontal stabilizer-to-vertical stabilizer attachment and replace them, as necessary.
(3) EXPECTED BENEFITS The inspection is aimed at preventing that defective barrel self-locking nuts remain installed, which can affect the integrity of the horizontal stabilizer-to-vertical stabilizer attachment.
(4) REVISION HISTORY Revision 01.
– Changed the Compliance.
Revision 02.
– This revision is issued to add aircraft SN 50000218 thru SN 50000238 to the service bulletin effectivity.
– Changed the Compliance.
D. DESCRIPTION
(1) PART I: INSPECTION OF BARREL SELF-LOCKING NUTS The modification presented in PART I of this service bulletin consists of inspecting the installed barrel self-locking nuts. If one or more barrel self-locking nut is of the TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT SB No.: 500-55-A004 PAGE: 2 DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 Copyright © 2014 by Embraer S.A. All rights reserved.
same type shown in Figure 1 C2, NOT ACCEPTABLE and 4. APPENDIX 1, replace it/them as given in PART II.
For removed nuts, fill up the table given in 4. APPENDIX 2 with the requested information, send it and contact Embraer Technical Support Department through contact.center@embraer.com.
(2) PART II: REPLACEMENT OF THE BARREL SELF-LOCKING NUT The modification presented in PART II of this service bulletin consists of replacing the defective barrel self-locking nut.
E. COMPLIANCE This Service Bulletin must be accomplished before next flight.
F. APPROVAL The technical aspects of this Service Bulletin are approved by: Embraer - Engineering Board.
G. COMMUNICATIONS TO EMBRAER EMBRAER requests that any results found during these inspections be informed to your local EMBRAER representatives or offices.
H. REFERENCES AMM 500/( ) Aircraft Maintenance Manual PART II - 20-00-00 - STANDARD PRACTICES-AIRFRAME.
AMM 500/( ) Aircraft Maintenance Manual PART II - 55-32-23 - STABILIZERS.
SRM 500/( ) Structural Repair Manual Part II - 51-21-05, 51-22-01, and 51-22- 03 - STANDARD PRACTICES AND STRUCTURES - GENERAL.
I. PUBLICATIONS AFFECTED None.
TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 SB No.: 500-55-A004 PAGE: 3 Copyright © 2014 by Embraer S.A. All rights reserved.
2. MATERIAL INFORMATION A. MATERIAL - PRICE AND AVAILABILITY None.
B. INDUSTRY SUPPORT INFORMATION
(1) WARRANTY COVERAGE
(a) Parts The SB parts will be provided at no charge.
(b) Labor Embraer will compensate 2.5 man-hours for the service bulletin PART I incorporation if it is performed in an Embraer-authorized service center NOTE: If barrel self-locking nut replacement is necessary, there will be an additional 0.5 man-hours per nut.
(c) Expiration Within the next 30 days.
C. MATERIAL NECESSARY FOR EACH AIRCRAFT The expendable or consumable parts presented in the AMM Tasks referred to in this bulletin, which are necessary for its accomplishment, should be procured from the operator’s inventories or ordered as spares.
(1) MATERIAL TO BE PROCURED
(a) APPLICABLE TO PART II - Parts The parts below should be procured from Embraer as spare part.
TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT SB No.: 500-55-A004 PAGE: 4 DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 Copyright © 2014 by Embraer S.A. All rights reserved.
NEW PN DESCRIPTION OLD PN QTY DISP RMLH2577-070 BARREL SELF-LOCKING NUT NAS577B7A 04 3 NOTE: The old Part Number shall be with the chamfered edge.
(b) APPLICABLE TO PART II - Consumable Materials The material below or equivalent, required for the accomplishment of this bulletin, should be procured from the operator’s inventories or from a local supplier.
NOTE: When applicable, the use of alternative consumable material in place of the ones specified is allowable, provided that these alternative are approved by Embraer as indicated in the related Embraer Technical Publications or through a formal Embraer communication channel.
NEW PN DESCRIPTION OLD PN QTY DISP Cor-Ban 27L Corrosion Inhibitor Compound (Spec MEP 09- 075) -A R 6 P/S870C-12 or P/S870C-12 654 SEM KIT or P/S870C-12 MC 780 C-12 Sealant (Spec MIL- PRF- 81733) -A R 6 F-900-Red or F-925-Pink or F-925-Yellow Torque Seal (Spec MEP 09-068) -A R 6 TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 SB No.: 500-55-A004 PAGE: 5 Copyright © 2014 by Embraer S.A. All rights reserved.
NEW PN DESCRIPTION OLD PN QTY DISP Alodine 1200 or Alodine 1200S or Bonderite M-CR 1200S AERO Alodine (Spec MIL- DTL-81706) -A R 6 TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT SB No.: 500-55-A004 PAGE: 6 DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 Copyright © 2014 by Embraer S.A. All rights reserved.
3. ACCOMPLISHMENT INSTRUCTIONS The steps below outline the general accomplishment instructions.
The detailed sequence is included in the respective figure, when necessary.
A. Make sure that the aircraft is safe for maintenance. Refer to AMM TASK 20-00-00-910- 801-A/200 - Aircraft Maintenance Safety Procedures.
B. Remove the front boom fairing according to instructions given in AMM TASK 55-32-23- 000-801-A/400 - Front Boom Fairing - Removal.
C. APPLICABLE TO PART I:
(1) Inspect the barrel self-locking nuts. If one or more barrel self-locking nuts is of the same type shown in Figure 1 C2, NOT ACCEPTABLE replace it/them as given in PART II. Otherwise go to Step 3.E.
(2) For removed nuts, fill up the table given in 4. APPENDIX 2 with the requested information, send it and contact Embraer Technical Support Department through contact.center@embraer.com.
D. APPLICABLE TO PART II
(1) Replace the barrel self-locking nut according to instructions given in Figure 2.
NOTE: Be careful not to damage the de-icer assembly tubes when you replace the barrel self-locking nuts.
NOTE: Be careful not to drop into the vertical-stabilizer leading edge the barrel self-locking nut when you remove it.
E. Reinstall the front boom fairing according to instructions given in AMM TASK 55-32-23- 400-801-A/400 - Front Boom Fairing - Installation.
F. Restore the aircraft to normal. Refer to AMM TASK 20-00-00-910-801-A/200 - Aircraft Maintenance Safety Procedures.
G. Enter the accomplishment of this bulletin in the applicable documents.
TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 SB No.: 500-55-A004 PAGE: 7 Copyright © 2014 by Embraer S.A. All rights reserved.
H. Fill out the attached “Service Bulletin Implementation and Evaluation” form and return it to:
NOTE: To formally inform that the SB has been incorporated fleet-wide or that the SB will not be incorporated, so that Embraer can update the affected technical publications, use the “Service Bulletin Full-Fleet Incorporation Report” form, which is available on the FLYEmbraer portal (http://www.flyembraer.com).
TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT SB No.: 500-55-A004 PAGE: 8 DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 Copyright © 2014 by Embraer S.A. All rights reserved.
EM500ENSB550015A.DGN A ZONES 335 343 344 A B TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 SB No.: 500-55-A004 PAGE: 9 FIGURE1-P A R TI-SELF-LOCKING NUTS INSPECTION (SHEET 01 OF 03) Copyright © 2014 by Embraer S.A. All rights reserved.
EM500ENSB550016A.DGN B C TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT SB No.: 500-55-A004 PAGE: 10 DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 FIGURE1-P A R TI-SELF-LOCKING NUTS INSPECTION (SHEET 02 OF 03) Copyright © 2014 by Embraer S.A. All rights reserved.
EM500ENSB550017A.DGN C 1 C 2
FLAT EDGE
RETAINER BARREL SELF−LOCKING NUT
CHAMFERED EDGE
RETAINER BARREL SELF−LOCKING NUT (NOT ACCEPTABLE NUT) (ACCEPTABLE NUT) TM ÀREA DE NÃO INTERFERÊNCIA
SERVICE BULLETIN ALERT ALERT DATE: 21/Jul/2014 REVISION No.: 02 - 25/Jul/2014 SB No.: 500-55-A004 PAGE: 11 FIGURE1-P A R TI-SELF-LOCKING NUTS INSPECTION (SHEET 03 OF 03) Copyright © 2014 by Embraer S.A. All rights reserved.