## Service Bulletin Fokker Services B.V.

Prepared Function / Note Date scheidema-ps04192 Jun 25/14 Colleague Check blay barba-mb00609 FS-TECH Jun 25/14 Manager Final Approval groot-jg01801 FS-TECI Jul 17/14 Office of Airworthiness Approval visser-hv01800 FS-TW Jul 17/14

Status: Released Revision:

- Released date: ( Mmm dd/yy ) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01

Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. EASA approved procedure for electronic sign-off 

## F27 Appendix SB
SBF27-28-072/APP01
Revision -

FUEL - GENERAL

The Introduction of Improved Bonding Provisions Outside the Fuel Tanks

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 1 of 10



## 1. General Information
A. General (1) Not applicable.

B. Table of Contents

• Section 1: General Information

• Section 2: Planning Information

• Section 3: Material Information

• Section 4: Accomplishment Instructions

• Service Bulletin Quality Reporting Form and attachments:

• List of drawings

• Required drawings C. Service Bulletin Revision History

Revision Date (Mmm dd/yy) Reason for Revision - Refer to footer First Release FUEL “This Service Bulletin is associated with the Fuel Tank Safety Program”

General – The Introduction of Improved Bondi ng Provisions outside the Fuel Tanks.

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 2 of 10



## 2. Planning Information A. Effectivity (1) F27 Mark 200 through 700 aircraft serial number(s): All.
NOTE: The Fuel Tank Safety Program is not applicable to F27 Mark 100. (2) Production version of this modification: Not applicable. B. Concurrent Requirements (1) Not applicable.
C. Reason (1) The Design Review of the F27 Mark 200/300/400/500/600/700 fuel system in accordance with the guidelines related to FAA SFAR 88 and JAA INT/POL/25/12 revealed that an unsafe condition may develop because no controlled bonding provisions are present on a number of critical locations, inside the Fuel Tank or connected to the Fuel Tank Wall. (2) This Service Bulletin gives instructions for the introduction of additional electrical bonding provisions that do not require opening of the fuel tanks access panels. D. Description (1) This Service Bulletin Appendix tells you how to: - Open Access Panels. - Install Bonding Clamps at Three Locations of the Fuel Tank Ventilation Line. - Rework and Prepare the Bonding Surface at One (Screw) Location of the Fuel Tank Ventilation Line. - Close Access Panels.

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 3 of 10 E. Compliance (1) Recommended Fokker Services recommends the accomplishment of the Service Bulletin Appendix within 2 years (24 months) after t he date of the original issue (November 28th, 2013) of the Proforma of this Service Bulletin. NOTE : EASA Airworthiness Directive 2014-0100 has been issued with respect to this subject. Refer to the EASA website for details on this AD. F. Approval (1) The technical content of this document is approved under the authority of DOA ref. EASA.21J.059. G. Manpower (1) Approximately 8 man-hours are necessa ry to do this Service Bulletin Appendix on one aircraft. This table of manpower will help you to schedule and do this Service Bulletin Appendix: Elapsed time (hours) Removal 2 2.0 1.0 Modification Inspection Installation 2 2.0 1.0 Testing 2 1.0 0.5 Total 8.0 4.0 1.5 Instructions Men Man-hours

2 3.0

NOTE : This estimate does not include the time necessary for the paint to dry and/or the sealant to cure. (2) The estimated hours are for direct labor done by experienced personnel. They are calculated based on the conditions given in SBF27-00-001 (Service Bulletin Introduction, section 2.C., “Manpower”). H. Weight and Balance (1) Weight change: Nil. Index change: None.

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 4 of 10 I. Electrical Load Data (1) Direct Current (DC) Loads: (a) Not changed. (2) Alternating Current (AC) Loads: (a) Not changed. J. Software Accomplishment Summary (1) Not applicable.
K. References (1) F27 Maintenance Manual (MM) F27 Structural Repair Manual (SRM) Fokker Standards & Process Manual (SPM) EASA Airworthiness Directive 2014-0100 F28 Service Bulletin (SB):

- SBF27-28-070 Fokker drawing(s): refer to attachment “List of drawings” Fokker internal reference(s): - ECR 015137.
L. Publications Affected (1) This Service Bulletin Appendix affects the publications listed below: (a) Maintenance Documentation - Fokker F27 Maintenance Manual (MM) - chapter 28-00 - Fokker F27 Illustrated Parts Catalog (IPC) - chapter 28-10 NOTE : Manual Change Notification MCNM F27-027 will be published before September 17, 2014. We do not plan to issue a revision of this Service Bulletin Appendix when the MCNM is published. For preliminary MCNM information, if required, please contact Fokker Services. (b) Maintenance Programs - Fokker F27 Customized Maintenance Program (CMP) NOTE: The affected maintenance program change is described in the paragraph Special Instructions for Continued Airworthiness (ICA).

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 5 of 10 (c) Special Instructions for Continued Airworthiness (ICA) The effect of this Service Bulletin Appendix on the special ICA is as follows:

YES NO - Electrical Wiring Interconnection System (EWIS) - X - Fuel Tank Safety (FTS) X - NOTE: Existing Fuel ALI item 280000-01 and CDCCL item 4 (refer to SBF27-28-070 revision 2 or subsequent revision) are effective and not affected by this change. Change the instructions in MM tasks 28-00, in accordance with the instructions in MCNM-F27-027. (d) Operational Documentation
Not affected. (2) Report to Fokker Services that this Service Bulletin Appendix has been carried out on the applicable aircraft. (3) You have the possibility to send your SB feedback to Fokker Services per “Service Bulletin Reporting Quality Form”. This form is located on the last Service Bulletin Appendix page. (4) For incorporation of this Service Bulletin Appendix in your documentation refer to SBF27-00-001 (Service Bulletin Introduction, section 4 “Incorporation of Service Bulletins in Documentation of Fokker Services”). (5) Accomplishment of this Service Bulletin Appendix is only complete with incorporation of the manual change(s), per the ref MCNM/MCNO, Temporary Revision (if applicable) or General Revision. M. Interchangeability or Intermixability of Parts (1) Not applicable.

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 6 of 10



## 3. Material Information A. Material – Price and Availability (1) You can order the necessary parts against list price. B. Material Required (1) These parts, which are necessary to complete this Service Bulletin on 1 aircraft, are not part of the mod kit.
New Part Number Qty Keyword Info Old Part Number Instructions/ Disposition AN735D16 6 Clamp - - Local source F0N2-3306-05010 2 Washer Cupal - Local source F0N9-1901C150C 4 Lead - - Local source MS21042L3 8 Nut - - Local source NAS1100-3-9 2 Screw - - Local source NAS1133-3 6 Screw - - Local source NAS1149D0332K 16 Washer - - Local source PR1422A AR* Sealant - - Local source WHITE SPIRIT AR* Solvent - - Local source
NOTES : * Use as much as necessary. C. Tooling – Price and Availability (1) Not applicable. D. Tooling Required (1) Not applicable.

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 7 of 10



## 4. Accomplishment Instructions
General:

- In general, use MM chapter 20, standard practices-airframe, as guide line for the aircraft

modification.

- Loosen tubing clamps where necessary.

- Refer to the SPM for: - The mounting of electrical bonds on metal parts, chapter TH NC4.610.

- If not indicated on drawing, seal all electrical bonds acc to TH4.610.

- For Standards and Process Manual (SPM) refe rences refer to “MyFokkerFleet.com >

Documentation and select SPM”.

- For the application of sealing compound refer to MM chapter 20-60-00.

- For drilling procedures refer to SRM chapter 51-11-03.

- For the installation of bolts and screws refer to SRM chapter 51-32-01 and/or TH6.3400.

- If not indicated on drawing, in the accomplishment instructions or referenced MM

procedures, use standard application and inspection of torque values acc to MM chapter 20-50-00 and/or TH6.3202.

- For the application of Primer & Paint refer to the MM chapter 51-10 and/or TH6.73xx.

- For the application of Alodine refer to SRM chapter 51-10-04 and/or TH6.73xx. WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIALS. OBEY THE INSTRUCTIONS AND MANUFACTURER'S HEALTH AND SAFETY INSTRUCTIONS. A. Disconnect the external power source (if connected to the aircraft). B. Switch the battery master switch to “OFF” and disconnect the batteries. C. Put up warning signs to tell persons: “DO NOT CONNECT THE ELECTRICAL POWER” “DO NOT CONNECT THE BATTERIES” D. Get access to work area, remove and keep access panels 90 and 90A for LH area 611, and 151 and 151A for RH area 621 (refer to the MM, chapter 06-30). E. Installation of Improved Bonding Provisions for the Fuel Tank Ventilation Tubing. Refer to drawing W7202-500 sheet 1 for rework of LH and RH Fuel Tank Ventilation Tubing. Perform steps (1) thru (6) for LH and RH Fuel Tank Ventilation Tubing. (1) Determine the position of the bonding point to structure, which you must drill out in the stringer as indicated on drawing W7202-500 sheet 1. (2) Drill out one hole of 5.3 mm dia. of which you determined the position in step (1).

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 8 of 10 (3) Prepare the bond surfaces for the three bonding clamps on the Fuel Tank Ventilation Tubing, at the positions as indicated in drawing W7202-500 sheet 1, in accordance with NC4.610/910 (refer to TH4 of SPM for instructions and materials). Use: - 3 Clamp pn AN735-D16 - 3 Nut pn MS21042L3 - 3 Screw pn NAS1133-3 - 6 Washer pn NAS1149D0332K - 2 Lead pn F0N9-1901C150C
NOTE: All electrical bonds must be sealed in accordance with SPM NC4.610; 5.3, Finishing Requirements 5.6, Finishing with Sealing Compound.
CAUTION: INSTALL THE CONNECTION IMMEDIATELY AFTER THE CONTACT SURFACE IS CLEANED, TO PREVENT CORROSION OF THE CONTACT SURFACES. DO NOT TOUCH THE CLEANED SURFACE WITH A BARE HAND, THE SEALING COMPOUND WILL NOT BOND TO A GREASY SURFACE. (4) Prepare the bond surface for installation of the bonding lead to aircraft structure, at the position as indicated in drawing W7202-500 sheet 1, in accordance with NC4.610/900 (refer to TH4 of SPM for instructions and materials). Use: - 1 Screw pn NAS1100-3-9 - 1 Washer (cupal) pn F0N2-3306-05010 - 2 Washer pn NAS1149D0332K - 1 Nut pn MS21042L3
NOTE: All electrical bonds must be sealed in accordance with SPM NC4.610; 5.3, Finishing Requirements 5.6, Finishing with Sealing Compound.
CAUTION: BE SURE THAT THE CUPAL WASHERS ARE INSTALLED WITH THE COPPER SIDE OF THE CUPAL WASHERS AGAINST THE BONDING LEAD TERMINAL.
CAUTION: INSTALL THE CONNECTION IMMEDIATELY AFTER THE CONTACT SURFACE IS CLEANED, TO PREVENT CORROSION OF THE CONTACT SURFACES. DO NOT TOUCH THE CLEANED SURFACE WITH A BARE HAND, THE SEALING COMPOUND WILL NOT BOND TO A GREASY SURFACE. (5) Apply a fillet sealant on the installed screws, washers, nut, terminal lead and clamp, installed in steps (3) and (4), in accordance with SRM chapter 51-20-0. Use: - AR Sealant pn PR1422A (6) Remove dust and grease from the prepared area. Use:

## Service Bulletin Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 9 of 10 - AR Solvent (white spirit) pn WHITE SPIRIT F. Install access panels. (1) Install access panels 90 and 90A for LH area 611, and 151 and 151A for RH area 621 (refer to the MM, chapter 06-30). G. Restore electrical power. (1) Restore all electrical power; refer to the MM, chapter 24-00-00. (2) Remove the warning signs to tell persons: "DO NOT CONNECT THE ELECTRICAL POWER" "DO NOT CONNECT THE BATTERIES". H. Remove all tools, materials and equipment from the work area. Make sure that the area is clean.

## Service Bulletin Quality Reporting Form Fokker Services B.V.

Status: Released Revision:

- Released date: (Mmm dd/yy) Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no.: SBF27-28-072/APP01
Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V . to its customers on a confidential basis subject to the provisions of an agreement. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained there in for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Page 10 of 10



### SB Title: The Introduction of Improved Bonding Provisions Outside the Fuel Tanks Use this Service Bulletin Quality Reporting Form to tell us your perception of the quality of the Service Bulletin. The reported data that you provide to us will be used to analyze areas of difficulties and to take corrective actions to further improve the quality of our Service Bulletins. We thank you for the time you have taken in completing this form. * Rate the scale of 1 to 4, with 1 the lowest score and 4 the highest score. Chapters * 1 2 3 4 a) Quality rating of this SB (overall) 

## □ □ □ □ b) Quality rating of the Planning Information 

## □ □ □ □ c) Quality rating of the Material Information 

## □ □ □ □ d) Quality rating of the Accomplishment Instructions 

## □ □ □ □ e) Quality rating of the Test Instructions (if applicable) 

## □ □ □ □ f) Quality rating of the Illust rations or Drawings (if applicable) 

## □ □ □ □ g) Timely delivery of the SB 

## □ □ □ □ If you have had difficulties with one of the chapters of this Service Bulletin and/or one of your rating(s) is lower than 3, please give a short description of the issue.
Comments:

Operator: Date:
Name / Title:

Please return this form to: Fokker Services B.V. Technical Services, Quality Department P.O. Box 1357 2130 EL Hoofddorp The Netherlands Fax: +31 (0) 88 6280111 or E-mail: technicalservices@fokker.comCopyright All rights reserved by Fokker Services B.V. (The Netherlands). This document has been supplied by Fokker Services B.V. to its customers on a confiden tial basis subject to the provisions of an agreemen t. Reproduction or disclosure to third parties of this document or any part thereof, or the use of any in formation contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitted except with the prior written permission of Fokker Services B.V. Status: Released Revision:

- Released date: Jul 17/14 Security class: UNCLASSIFIED F27 Appendix SB no: SBF27-28-072/APP01 

## Service Bulletin

Fokker Services B.V.

Page 1 of 1 

## List of Drawings / Parts Lists Drawing Sheet Issue Title
W7202-500 001 B RF EL INSTL OUTERWING LH/RH