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Yokker Service Bulletin Fokker Services B.V.
F28 Proforma SB SBF28-28-059 Revision 1
FUEL - GENERAL Installation of Additional Bonding Provisions Outside the Fuel Tank Prepared Function / Note Date scheidema-ps04192 Jul 11/14 Colleague Check veen-iv01431 FS-TFSE Jul 11/14 Manager Final Approval groot-jg01801 FS-TECI Jul 14/14 Office of Airworthiness Approval visser-hv01800 FS-TW Jul 15/14 Status: Revision: Released date: (Mmm ddly) Released Jul 15/14 Security class: F28 Proforma SB no.:
UNCLASSIFIED SBF28-28-059 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 of an percomed except with Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the the prior written permission of Fokker Services B.V.
EASA approved procedure for electronic sign-off
Fokker Service Bulletin Fokker F28 This Service Bulletin supersedes steps B. and J.
of the accomplishment instructions of SBF28-28-026 Proforma FUEL "This Service Bulletin is associated with the Fuel Tank Safety Program" Fuel System - Introduction of improved Bonding Provisions Outside the Fuel Tanks
1. Planning Intormation A. Effectivity
(1) F28 aircraft serial numbers:
11003 thru 11241 11991 and 11992
(2) Production version of this modification: Not applicable.
B. Concurrent Requirements
(1) Not applicable.
C. Reason
(1) The design review of the F28 Mk 1000 thru 4000 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 in the wing tanks because no controlled bonding provisions are present on a number of critical locations, outside 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.
Page 1 2 4 5 8 9 10 11 Revision 1 1 1 1 1 1 Jan 09/14 SBF28-28-059 Revision 1, Jul 15/14 Proforma Page 1 Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This d sions of an agreement.
Reproduction or disclosure to third parties of document or any part thereof, except with the prior written permission of Fokker Services B.V.
leker Service Bulletin Fokker F28 Reason for Revision:
(1) This revision is made to:
Change that this Service Bulletin supersedes steps B. and J. of the accomplishment instructions of SBF28-28-026.
Add figure 3 to Part 2 of "Description" information for modification of aircraft with Center Wing Tank.
- Change the effectivity of Part 3 of "Description" information as modification depends on incorporation of SBF28-28-020;
- Change the "Weight and Balance" information;
Change the "Maintenance Documentation" information;
- Add figure 3 for modification of aircraft with Center Wing Tank.
D. Description
(1) An Appendix to this Proforma Service Bulletin will tell you how to improve current bonding provisions and how to install extra bonding to fuel system Components outside the fuel Tanks to the :
Part 1: Fuel Quantity Indication System.
(if POST SBF28-57-098)
- Fuel quantity Tank Unit (FQTU) no. 7 mounting flange.
In figure 1 the position of FQTU number 7 is indicated, with an impression of the items to be bonded.
- FQTU no. 7 attachment screws.
In figure 1 the position of FQTU number 7 is indicated, with an impression of the items to be bonded.
NOTE: For aircraft PRE SBF28-57-098, Part 1 of this Service Bulletin is included in SBF28-28-058.
Part 2: Refueling line.
(for a/c: - F28 Mk1000: s/n's 11003 thru 11061 and 11991 and 11992, if PRE SBF28-28-026,
- F28 Mk2000, s/n 11053, if PRE SBF28-28-026) For an impression of the items to be bonded see figures 2 and 3.
Part 3: Suction relief valve line.
(for a/c: - 11016 thru 11061, 11991 and 11992 if POST SBF28-28-020,
- 11062 thru 11241 if equipped with Center Wing Bag Tanks) For an impression of the items to be bonded see figure 4.
Part 4: Boost pump attachment screws.
For an impression of the items to be bonded see figure 5.
SBF28-28-059 Proforma Page 2 Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This docu reproduction or aisciosure to third parties or unis document or anv pam thereo except with the prior written permission of Fokker Services B.V.
Jan 09/14 Revision 1, Jul 15/14 lied by Fokker Services B.V. to its customers on a confidential basis subject to the provisions of an agreement.
ained therein for purposes other than explicity allowed by the aroresald agreement, is not permitted
okker Service Bulletin Fokker F28 E. Compliance
(1) Recommended.
Fokker Services recommends the accomplishment of this Service Bulletin within 2 years (24 months) after the issue date of this Service bulletin.
NOTE: It is expected that EASA will issue an Airworthiness Directive (AD) with respect to this subject with the same compliance terms. Refer to the EASA website for the publication of a Proposed Airworthiness Directive for comments.
NOTE: In view of the required compliance, please be aware of the Appendix lead time of 3 months.
F. Approval
(1) The technical content of this document is approved under the authority of DOA ref.
EASA.21J.059.
G. Manpower
(1) Approximately 5 man-hours are necessary to do Part 1 of this Service Bulletin.
The elapsed time will be 2,5 hours for 2 men.
(2) Approximately 5 man-hours are necessary to do Part 2 of this Service Bulletin.
The elapsed time will be 5 hours for 1 man.
(3) Approximately 3 man-hours are necessary to do Part 3 of this Service Bulletin.
The elapsed time will be 3 hours for 1 man.
(4) Approximately 3 man-hours are necessary to do Part 4 of this Service Bulletin.
The elapsed time will be 3 hours for 1 man.
All mentioned figures are rough estimates. More detailed manpower information will be included in an Appendix to this Proforma Service Bulletin.
H. Weight and Balance
(1) For Part 1 of this Service Bulletin:
Weight change: None.
Index change: None.
(2) For Part 2 of this Service Bulletin:
Weight change: + 0,55 kg (1.21 lb) Index change: - 0.001.
(3) For Part 3 of this Service Bulletin:
Weight change: + 0,32 kg (0.71 lb).
Index change: - 0.007.
Jan 09/14 SBF28-28-059 Revision 1, Jul 15/14 Proforma Page 3 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 agreemen Reproduction or disclosure to third parties of this document or any part thereof, or the use of any information 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.
tokker Service Bulletin Fokker F28
(4) For Part 4 of this Service Bulletin:
Weight change: None.
Index change: None.
Electrical Load Data
(1) Not changed.
J. Software Accomplishment Summary
(1) Not applicable.
K. References
(1) Fokker Services SBF28-28-026, Fokker Services SBF28-28-058, Fokker Services SBF28-57-098, Fokker internal reference(s):
- ECR 15105.
Publications Affected
(1) This SB affects the publications listed below:
(a) Maintenance Documentation F28 Maintenance Manual (MM)
- F28 Illustrated Parts Catalog (IPC) NOTE: The Manual Change Notification - Maintenance Documentation will be attached to each Appendix to this Proforma Service Bulletin.
(b) Maintenance Programs F28 Customized Maintenance Program (CMP).
NOTE: The affected maintenance program change is described in the paragraph Special Instructions for Continued Airworthiness (ICA).
SBF28-28-059 Jan 09/14 Proforma Revision 1, Jul 15/14 Page 4 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 agreemen eproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitte except with the prior written permission of Fokker Services B.V.
Fokker Service Bulletin Fokker F28
(c) Special Instructions for Continued Airworthiness (ICA) The effect of this Service Bulletin on the special ICA is as follows:
YES NO
- Electrical Wiring Interconnection System (EWS)
- Fuel Tank Safety (FIS NOTE: If "YES" the changed ICA will be described in an attachment to each Appendix of this Proforma Service Bulletin.
(d) Operational Documentation Not affected.
(2) For incorporation of this Service Bulletin in your documentation refer to SBF28-00-001 (Service Bulletin Introduction, section 4 "Incorporation of Service Bulletins in Documentation of Fokker Services").
M. Interchangeability or Intermixability of Parts
(1) Not applicable.
Jan 09/14 SBF28-28-059 Revision 1, Jul 15/14 Proforma Page 5 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.
eproduction or disclosure to third parties of this document or any part thereof, or the use of any information contained therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitte xcept with the prior written permission of Fokker Services B.V
Fokker Service Bulletin Fokker F28
2. Material Information A. Material - Price and Availability
(1) On request we will supply you a customized modification proposal including prices and lead-times. The estimated lead time of an Appendix to this Proforma Service Bulletin and mod kit(s) is 3 months after we receive your order.
(2) A customized modification proposal will include an approved Appendix (free of charge), mod kit(s) and revisions of the affected documentation (if applicable).
(3) You can contact your Fokker Services Customer Support Manager for such a modification proposal.
B. Material Required
(1) Will be part of the Appendix and will comprise bonding leads, clamps and attaching materals.
C. Tooling - Price and Availability
(1) Not Applicable.
D. Drawings Required
(1) Will be part of the Appendix.
3. Accomplishment Instructions A. Accomplishment Instructions will be included in each Appendix to this Proforma Service Bulletin.
SBF28-28-059 Jan 09/14 Proforma Revision 1, Jul 15/14 Page 6 Coproduct An or is dosure toy Fo partie of the document orany pat Tried or me ta any numed by Fole here Bey to ses one an expiry alaved by the ad to and agreement and permited except with the prior written permission of Fokker Services B. V
Fokker Service Bulletin Fokker F28 PROBE NUMBER 7
BONDING IMPROVEMENT
BETWEEN ATTACHMENT
SCREWS AND
PROBE MOUNTING FLANGE
BONDING IMPROVEMENT
BETWEEN PROBE
MOUNTING FLANGE AND
STRUCTURE Figure 1: Bonding improvement of Fuel Quantity Indication System - probe no. 7.
Jan 09/14 SBF28-28-059 Revision 1, Jul 15/14 Proforma Page 7 Copyright All rights reserved by Fokker Services B.V. (The Netherlands). This d ker 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, ined 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.
Service Bulletin Fokker F28
ADDITIONAL OR IMPROVED
BONDING AT INDICATED
LOCATIONS Figure 2: _ Bonding improvement of refueling line (in MLG wheel bay) for aircraft not equipped with Center Wing Tank SBF28-28-059 Jan 09/14 Proforma Revision 1, Jul 15/14 Page 8 pyright 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 agreeme cep uctione fir witten to thirsion its of ther Sevices tor any part thereof, or the use of any information contained therein for purposes other than expily allowed by the aforesaid agreement, is not permit
Service Bulletin Fokker F28
ADDITIONAL OR IMPROVED
BONDING AT INDICATED
LOCATIONS Figure 3: Bonding improvement of refueling line (in MLG wheel bay) for aircraft equipped with Center Wing Tank Jan 09/14 SBF28-28-059 Revision 1, Jul 15/14 Proforma Page 9
Fokker Service Bulletin Fokker F28
SUCTION RELIEF
VALVE LINE
BONDING IMPROVEMENT
BETWEEN SUCTION RELIEF VALVE LINE
AND STRUCTURE
FRONT SPAR Figure 4: Bonding improvement of the Suction Relief Valve Line.
SBF28-28-059 Jan 09/14 Proforma Revision 1, Jul 15/14 Page 10 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 therein for purposes other than explicitly allowed by the aforesaid agreement, is not permitte except with the prior written permission of Fokker Services B.V.
Fokker Service Bulletin Fokker F28
BONDING IMPROVEMENT
BETWEEN ATTACHMENT SCREWS
AND BOOST PUMP ATTACHMENT FLANGE VIEW A Figure 5: Bonding improvement of Boost pumps attachment screws.
Jan 09/14 SBF28-28-059 Revision 1, Jul 15/14 Proforma Page 11 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 agreemer Recept withe dis witten to thirsiant for ker secuce t or any part thereof, or the use of any information contained therein for purposes other than explicity allowed by the aforesaid agreement, is not permite