Service Bulletin 

Fokker 70/100 

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 permitted except with the prior written permission of Fokker Services B.V. 

Jun 15/09 SBF100-28-052 

Page 1 

FUEL

Transfer - The Modification of the Center Wing Tank Fuel Transfer Logic 

1. Planning Information

A. Effectivity 

(1) F28 Mark 0070/0100 aircraft serial numbers: 

11442 thru 11585 

NOTE: If your aircraft is equipped with the automatic fuel transfer system the 

legends in the center tank pump switches on the flight deck fuel control 

panel show FAULT/OFF. 

(2) Production version of this modification: Not applicable. 

B. Concurrent Requirements 

(1) Not applicable. 

Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Revision - - - - - - - - - - - - - - - - - 

Page 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 

Revision - - - - - - - - - - - - - - - 

Attachments 5 Drawing sheets. For a detailed listing refer to page 8. 

This Service Bulletin 

supersedes SBF100-28-

027 and SBF100-28-036 

(including appendices I, II, 

III, IV and V). 

If equipped with the automatic fuel 

transfer system 
Service Bulletin 

Fokker 70/100 

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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 

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SBF100-28-052 Jun 15/09 

Page 2 

C. Reason 

(1) On an aircraft equipped with an Integral Center Wing Tank (ICWT) and the 

automatic center tank fuel transfer system selected in the automatic mode, the 

center tank pumps will switch off automatically without indications on the flight 

deck when the center tank is empty. 

(2) However when Service Bulletin SBF100-31-067 (issued in January 2008) is 

incorporated, a ”CTR TK PUMP 1 and 2” alert will be presented on the Multi 

function Display (MFDU) and the FAULT indication will appear for both center tank 

fuel transfer pumps on the fuel control panel when the center tank is empty. The 

operational procedure associated with this alert instructs the crew to switch the 

center tank pumps off. These fault indications have resulted in pilot reports and 

unnecessary maintenance follow up. 

(3) Only a limited number of ICWT equipped aircraft are still equipped with the 

automatic center tank fuel transfer system. Modification of the automatic center 

tank fuel transfer system into the semi-automatic center tank fuel transfer system 

will prevent the unnecessary maintenance follow up. This Service Bulletin contains 

the instructions for that modification. 

D. Description 

(1) This Service Bulletin is divided into 3 parts as follows: 

Part 1: The modification of the Center Wing Tank Fuel Transfer Logic. This part 

tells you how to: 

- Remove the Fuel Control Panel and replace the connector 

- Remove the Combined Processor Totalizer and replace the connector 

- Perform the inspection for the presence of the “autofeed fault enable” wire 

- Install the Combined Processor Totalizer and the Fuel Control Panel 

- Perform the operational test of the fuel control panel, the BITE test of the 

Combined Processor Totalizer and the operational test of the fuel transfer 

pumps. 

- Perform the verification of the CENTER TANK Program Pin on both 

MFDU’s. 

Part 2: The rework of the wiring for MFDU 1 and MFDU 2. This part tells you how 

to: 

- Remove both MFDU’s 

- Rework the wiring for the MFDU’s 

- Install the MFDU’s 

- Do the after installation test of both MFDU’s. 

 NOTE: Part 2 of this Service Bulletin is only applicable when the 

verification in accordance with Part 1 of this Service Bulletin reveals 

that the CENTER TANK discrete input shows “ICW”. 
Service Bulletin 

Fokker 70/100 

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Jun 15/09 SBF100-28-052 

Page 3 

Part 3: The installation of “autofeed fault enable” wire. This part tells you how to: 

- Install the “autofeed fault enable” wire. 

 NOTE: Part 3 of this Service Bulletin is only applicable when the inspection 

for the presence of the wire in accordance with Part 1 of this 

Service Bulletin reveals that the wire is not installed. 

E. Compliance 

(1) Recommended. 

Fokker Services recommends the accomplishment of this Service Bulletin together 

with the accomplishment of Service Bulletin SBF100-31-067. 

F. Approval 

(1) The technical content of this document is approved by EASA or under the authority 

of DOA nr. EASA.21J.059. 

G. Manpower 

(1) Approximately 9 man-hours are necessary to do Part 1 of this Service Bulletin on 

one aircraft. 

This table of manpower will help you to schedule and do this Service Bulletin: 

Instructions Men Man-hours Elapsed time 

(hours) 

Inspection 1 2 2 

Removal 1 1 1 

Modification 

Installation 

2 4 2 

Testing 1 2 2 

Total 9 7 

NOTE: This estimate does not include the time necessary for the paint to dry 

and/or the sealant to cure. 
Service Bulletin 

Fokker 70/100 

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SBF100-28-052 Jun 15/09 

Page 4 

(2) Approximately 4 man-hours are necessary to do Part 2 of this Service Bulletin on 

one aircraft. 

This table of manpower will help you to schedule and do this Service Bulletin: 

Instructions Men Man-hours Elapsed time 

(hours) 

Removal 1 0,5 0,5 

Modification 

Inspection 1 2,5 2,5 

Installation - - - 

Testing 1 1 1 

Total 4 4 

NOTE: This estimate does not include the time necessary for the paint to dry 

and/or the sealant to cure. 

(3) Approximately 32 man-hours are necessary to do Part 3 of this Service Bulletin on 

one aircraft. 

This table of manpower will help you to schedule and do this Service Bulletin: 

Instructions Men Man-hours Elapsed time 

(hours) 

Removal 2 8 4 

Modification 2 12 6 

Installation 2 10 5 

Testing 1 2 2 

Total 32 17 

NOTE: This estimate does not include the time necessary for the paint to dry and the 

sealant to cure. 

(4) The estimated hours are for direct labor done by experienced personnel. They are 

calculated based on the conditions given in SBF100-00-001 (Service Bulletin 

Introduction, section 2.C., "Manpower"). 

H. Weight and Balance 

(1) Weight change: None 

Index change: None. 
Service Bulletin 

Fokker 70/100 

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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 permitted except with the prior written permission of Fokker Services B.V. 

Jun 15/09 SBF100-28-052 

Page 5 

I. Electrical Load Data 

(1) Not affected. 

J. Software Accomplishment Instructions 

(1) Not applicable. 

K. References 

(1) Fokker 70/100 Aircraft Maintenance Manual (AMM) 

Fokker 70/100 Wiring Manual (WM) 

Fokker 70/100 Illustrated Parts Catalog (IPC) 

Fokker 70/100 Service Bulletin (SB): 

 - SBF100-28-027 

 - SBF100-28-036 

 - SBF100-31-067 

Fokker drawing(s): refer to page 8 

Fokker internal reference(s): 

 - ECR 95786 

 - ECR 95787 

 - ECR 15338. 

L. Publications Affected 

(1) This SB affects the publications listed below: 

(a) Maintenance Documentation

- Fokker 70/100 Aircraft Maintenance Manual (AMM) - chapter 12-00 

 chapter 28-16 

 chapter 28-22 

 chapter 31-61 

- Fokker 70/100 Wiring Manual (WM) - chapter 28-16 

 chapter 31-61 

- Fokker 70/100 Illustrated Parts Catalog (IPC) - chapter 28-22 

 chapter 28-41 

- Fokker 70/100 Trouble Shooting Schematics Manual (TSSM). 

NOTE: See attached Manual Change Notification MCNM F100-126. 

(b) Maintenance Programs

Not affected. 
Service Bulletin 

Fokker 70/100 

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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 permitted except with the prior written permission of Fokker Services B.V. 

SBF100-28-052 Jun 15/09 

Page 6 

(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 (EWIS) - X 

- Fuel Tank Safety (FTS) - X 

- Damage Tolerance of Fatigue Critical Structure - X 

NOTE: If “YES”, when not already incorporated, the changed ICA will be 

incorporated in the MRB document within one calendar year from the 

date of issue of this Service Bulletin. Until then, no actions are 

required. 

(d) Operational Documentation

- Fokker 70/100 Airplane Flight Manual (AFM) 

- Fokker 70/100 Aircraft Operating Manual (AOM) 

- Fokker 70/100 Quick Reference Handbook (QRH). 

NOTE: See attached Manual Change Notification MCNO F100-052. 

(2) For incorporation of this Service Bulletin in your documentation refer to SBF100-

00-001 (Service Bulletin Introduction, section 4 "Incorporation of Service Bulletins 

in Documentation of Fokker Services"). 

NOTE: Accomplishment of this SB is only complete with incorporation of the 

 manual change(s), per the ref. MCNM/MCNO, Temporary Revision or 

 General Revision. 

M. Interchangeability or Intermixability of Parts 

(1) Not applicable. 
Service Bulletin 

Fokker 70/100 

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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 permitted except with the prior written permission of Fokker Services B.V. 

Jun 15/09 SBF100-28-052 

Page 7 

2. Material Information

A. Material – Price and Availability 

(1) You can order the necessary parts to accomplish Part 1 as mod kit SBF100-28-

052** 

(2) You can contact your Fokker Services Account Manager for the price and leadtime of this mod kit. 

(3) The materials for accomplishment of Part 2 and Part 3 are local source items. 

B. Material Required 

(1) These parts which are necessary to complete Part 1 this Service Bulletin on 1 

aircraft, are not part of the mod kit. 

New Part Number Qty Keyword Info Old Part Number Instructions/ 

 *1

 *2 Disposition

0201KIP01-003 1 Combined 

Processor 

Totalizer 

Indication 

in KG 

0201KIP01-001 or 

0201KIP03-001* 

Modify** 

0202KIP02-004 1 Combined 

Processor 

Totalizer 

Indication 

in LB 

0202KIP02-002 or 

0202KIP04-002* 

Modify** 

A42707-435 1 Fuel Control 

Panel 

Indication 

in KG 

A42707-429 or 

A42707-439* 

Modify** 

A42707-437 1 Fuel Control 

Panel 

Indication 

in LB 

A42707-431 or 

A42707-441* 

Modify** 

NOTES: * Check configuration for applicability 

** Send unit to approved workshop for modification. 

 Applicability: 

 Qty *1

 is applicable to units that indicates in KG. 

 Qty *2

 is applicable to units that indicates in LB. 

(2) These mod kit parts are necessary to do Part 1 this Service Bulletin on 1 aircraft. 

New Part Number Qty Keyword Info Old Part Number Instructions/ 

Disposition

F0N9-4971J61SB 1 Plug FCP P0722B KJ6T24A61SCL or 

KJ6T24A61SNL* 

Discard** 

F0N9-4971J61SA 1 Plug CPT P0431B KJ6T24A61SBL Discard** 

NOTE: * Check configuration for applicability 
Service Bulletin 

Fokker 70/100 

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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 

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SBF100-28-052 Jun 15/09 

Page 8 

** Upon customer requirements, these items can either be discarded or 

stored for future use. 

(3) These parts which are necessary to complete this Service Bulletin on 1 aircraft, if 

Part 2 is applicable, are not part of the mod kit. 

New Part Number Qty Keyword info Old Part Number Instructions/ 

Disposition

F0N9-1224-2 2 Wire-end cap FC 430 - Local source 

(4) These parts which are necessary to complete this Service Bulletin on 1 aircraft, if 

Part 3 is applicable, are not part of the mod kit. 

New Part Number Qty Keyword Info Old Part Number Instructions/ 

Disposition

F0N9-1780NK22 14m Wire - - Local source 

F0N1-3613-3-9 * Sleeve, Identification - - Local source 

M81824/1-1 1 Splice FC400 - Local source 

M39029/57-357 2 Socket FC256 - Local source 

NOTE: * Use as much as necessary 

C. Tooling – Price and Availability 

(1) Not applicable. 

D. Drawings Required 

(1) Not applicable. 

E. Drawings Required 

(1) These drawings are necessary to do Part 3 of this Service Bulletin: 

Drawing Sheet Issue Size Description Aircraft Effectivity

D42126 38 AR A3 ELEC INSTL ABOVE NLG-BAY All 

D42213 02 H A3 INSTL WA FLT COMPT CLNG All 

D42220 60 V A3 ELEC.INSTALL.FLIGHT COMPTM. All 

D42220 71 AQ A3 ELEC.INSTALL.FLIGHT COMPTM. All 

D42250 23 U A3 ELEC INSTL R.A.FLT COMPT RH All 
Service Bulletin 

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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 permitted except with the prior written permission of Fokker Services B.V. 

Jun 15/09 SBF100-28-052 

Page 9 

3. Accomplishment Instructions

General 

- For finish codes references, refer to “Myfokkerfleet.com/documentation/CML”. 

- Refer to the WM chapter 20-13-03 for the removal and installation of wires. 

- Refer to the AMM for removal and installations. 

- For material numbers, refer to the Consumable Material List. 

- Loosen the cable clamps where necessary. 

- Remove and discard the cable ties where necessary. 

- Remove and discard the lacing tape where necessary. 

- Remove and discard the sealing plugs from the connectors and the terminal blocks 

where necessary. 

- If you disconnect electrical plugs, you must do the applicable tests of the systems that 

you have interrupted. 

 WARNING: BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIAL(S). OBEY 

THE OPERATOR'S AND MANUFACTURERS HEALTH AND SAFETY 

INSTRUCTIONS. 

Part 1: The modification of the Center Wing Tank Fuel Transfer Logic. 

Refer to figure 3. 

A. The removal of the Fuel Control Panel and replacement of the connector. 

(1) Remove Fuel Control Panel, refer to AMM task 28-22-01. 

(2) Send the panel to an approved workshop for modification. 

(3) Replace connector P0722B, refer to WM chapters 28-41-11. 

(a) Identify the wire locations in plug and disconnect the wires from connector 

P0722B (FC 256). 

(b) Discard plug. 

(c) Reconnect the wires you removed in step (a) to the same location in the new 

connector (FC 256), refer to WM chapter 28-16-10 and 28-16-20. Use: 

- 1 plug F0N9-4971J61SB (FC 256). 
Service Bulletin 

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not permitted except with the prior written permission of Fokker Services B.V. 

SBF100-28-052 Jun 15/09 

Page 10 

B. Removal of the Combined Processor Totalizer and Replacement of the Connector. 

(1) Remove Combined Processor Totalizer from the main instrument panel, refer to 

AMM task 28-41-03-000-814-A. 

(2) Send the unit to an approved workshop for modification. 

(3) Replace connector P0431B, refer to WM chapter 28-16-10 and 28-16-20. 

(a) Identify the wire locations in plug and disconnect the wires from connector 

P0431B (FC 256). 

(b) Discard plug. 

(c) Connect the wires you removed in step (a) to the new connector (FC 256), 

refer to WM chapter 28-16-10 and 28-16-20. Use: 

- 1 plug F0N9-4971J61SA (FC 256). 

C. Inspection for the Presence of the “Autofeed Fault Enable “ Wire 

(1) Check continuity between CPT plug P0431B, pin JJ and the Fuel Control Panel 

plug P0722C, pin V. 

(2) If continuity is measured then the “autofeed fault enable” wire is installed 

- continue with step D. 

(3) If no continuity is measured then the “autofeed fault enable” wire must be installed; 

- continue with Part 3 of this Service Bulletin. 

D. Installation of the Combined Processor Totalizer and the Fuel Control Panel. 

(1) Install Combined Processor Totalizer. (Refer to AMM task 28-41-03-400-814-A). 

Use: 

- 1 Combined Processor Totalizer 0201KIP01-003 (Indication in KG) or 

 Combined Processor Totalizer 0202KIP02-004 (Indication in LB). 

(2) Install Fuel Control Panel, refer to AMM task 28-22-01-400-814-A. Use: 

- 1 Fuel Control Panel A42707-435 (Indication in KG) or 

 Fuel Control Panel A42707-437 (Indication in LB). 

E. Test of Fuel Transfer System. 

(1) Do the operational test of the Fuel Control Panel for aircraft F28MK0100/0070, 

reference is made to page 16 to and inclusive 20 for aircraft F28MK0100 and page 

21 to and inclusive 25 for aircraft F28MK0070 of this Service Bulletin. 

(2) Perform the BITE test of the Combined Processor Totalizer. Refer to AMM task 

28-41-03-400-814-A. 
Service Bulletin 

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Jun 15/09 SBF100-28-052 

Page 11 

(3) Perform the operational test of the fuel transfer pumps for aircraft 

F28MK0100/0070, reference is made to page 12 to and inclusive 15 of this Service 

Bulletin. 

F. Verification of the CENTER TANK Program Pin on both MFDU’s 

(1) Connect the AC Electrical Power, refer to the AMM chapter 24-00-00. 

(2) Select the MDU Input Verification Page on both MFDU’s, refer to the AMM 

chapter 31-61-00. 

(3) Fill in the actual status of the discrete inputs CENTER TANK and PARITY on both 

MFDU’s. 

MFDU no. 1 MFDU no. 2

CENTER TANK - ................TANK CENTER TANK - ................TANK 

PARITY - .............................. PARITY - .............................. 

(4) Define how to continue depending on the actual status of the discrete input 

CENTER TANK: 

(a) If “ICW TANK” is shown continue with Part 2

(b) If ”BAG TANK” is shown continue with step (5). 

(5) Job Closure. 

(a) Select the primary page on the LH MFDU and the secondary page on the RH 

MFDU, refer to the AMM chapter 31-61-00 

(b) Remove the AC Electrical Power, refer to the AMM chapter 24-00-00. 
Service Bulletin 

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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 permitted except with the prior written permission of Fokker Services B.V. 

SBF100-28-052 Jun 15/09 

Page 12 

Operational Test of the Fuel Transfer Pumps

1. Materials Not applicable 

2. Special Tools and Equipment 

28-0-4733 Set, target and anti-target, proximity sensing system 1 

3. Standard Tools and Equipment Not applicable 

4. Consumable Materials Not applicable 

5. Expendable Parts Not applicable 

6. Referenced Procedures of the AMM, Chapter;

12-11-01-650-823 Manual refueling Pageblock 301 

24-00-00-860-832 Supply the external AC power Pageblock 201 

24-00-00-860-842 Remove the external AC power Pageblock 201 

7. Job Set-Up

A. Do a check of the fuel tank contents 

(1) Open the access door(s) 178BR. 

(2) On the Fueling Control Panel (FCP), open the safety guard and set the POWER 

switch to ON. 

(3) On the FSP, make sure: 

- The CENTRE - OVERFLOW VALVES OPEN light comes on 

- The CENTRE tank display shows a minimum of 400 kg (880 lb) of fuel 

- The LH and RH MAIN tank displays show approximately, but no more than 

 3300 kg (7250 lb) of fuel. 

NOTE : If the CENTRE - OVERFLOW VALVES OPEN light does not come on, 

one or both overflow valves are not completely open. Set the POWER 

switch to OFF and then to ON again to open both overflow valves. 

NOTE : There must be enough fuel in the center tank to fill each main tank to at 

least 3500 kg (7720 lb). 

(4) If necessary, adjust the fuel quantity in the tanks, refer to 12-11-01-650-823 for 

corrective action. 

(5) On the FCP, set the POWER switch to OFF and close the safety guard. 

NOTE : If one or both center-wing tank overflow-valves is (are) not closed the 

 power will not go off. Set the POWER switch to ON and wait for a 

 moment. Then set the POWER switch to OFF again to close the 

 overflow valve(s). 

(6) Close the access door(s) 178BR. 
Service Bulletin 

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Jun 15/09 SBF100-28-052 

Page 13 

SUBTASK 28-16-00-861-015-B00 

B. Supply external AC power (Refer to 24-00-00-860-832). 

SUBTASK 28-16-00-860-045-B00 

C. On the multifunction control panel turn the brightness control knobs clockwise to switch 

the MFDU on. 

 Procedure

A. Do the operational test of the transfer pumps 

NOTE: For this test the system must be in the automatic mode. This means the MAN 

legend in the AUTO FEED push switch must be off. 

NOTE: Automatic transfer starts when the contents of both main tanks are less than 3300 

KG (7250 LB) and the ground/flight sensors detect flight. The transfer stops when 

one or both main tank contents becomes more than 3500 KG (7720 LB). 

Action Result

(1) Install the target and anti-target, 

proximity sensing system set 

(tool No. 28-0-4733) part of target 

(tool No. 28-0-4733-08) on the LH 

ground/flight proximity sensor. 

Action Result

(2) In the flight compartment on the FUEL 

control panel push (in) the CTR TANK 

PUMP 1 and 2 push switches 

(a) The ON legends in the CTR TANK 

PUMP 1 and 2 push switches come 

on. 

(b) The fuel transfer from the center 

wing tank (CWT) to the main tanks 

starts. 

(c) On the tank contents displays 

(TCD's): 

- The fuel quantity on the center 

TCD decreases 

- The fuel quantities on the LH and 

RH TCD increase. 

NOTE: Each transfer pump transfers approximately 20 kg (45 lb) per minute. 

Action Result

(3) Open the circuit breaker(s): 

 CENTER TANK PUMP 1 CTL P1

(a) The fuel transfer stops. 

(b) After 5 minutes the FAULT legend 
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SBF100-28-052 Jun 15/09 

Page 14 

 CB1107A 

 CENTER TANK PUMP 2 CTL 

P3 CB1108A 

 comes on in the AUTO FEED push 

 switch. 

(c) The ON legends stay on in the 

CTR TANK PUMP 1 and 2 push 

switches. 

(d) A single chime is heard. 

(e) On the MFDU, the FUEL AUTO 

 FEED message comes on. 

(4) Close the circuit breaker(s): 

CENTER TANK PUMP 1 CTL P1 

CB1107A 

CENTER TANK PUMP 2 CTL P3 

CB1108A 

(5) Open the circuit breaker(s): 

FUEL CPT PWR LH 

P2 CB0404A 

FUEL CPT PWR RH P2 CB0405A 

(6) Close the circuit breaker(s): 

FUEL CPT PWR LH P2 CB0404A 

FUEL CPT PWR RH P2 CB0405A 

(a) The fuel transfer starts again. 

(b) The FAULT legend in the AUTO 

 FEED push switch goes off. 

(c) On the MFDU, the FUEL AUTO 

 FEED message goes off. 

(7) Wait until the total fuel quantity in either 

main tank increases to approximately 

3500 kg (7720 lb). 

(a) The fuel transfer stops. 

NOTE: If the fuel quantity in either main tank does not get to 3500 Kg (7720 LB) because

there is not enough fuel in the center tank, 15 minutes (if pre SBF100-31-067) or

1 minute (if post SBF100-31-067) after the center tank became empty: 

 - the LOP legends in the CTR TANK PUMP push switches come on 

 - the MFDU shows the CTR TK PUMPS alert message. 

Action Result

(8) Push (out) the AUTO FEED push 

switch. 

(a) The MAN legend in the AUTO 

 FEED push switch comes on. 

(b) The fuel transfer starts again. 

(9) Push (in) the AUTO FEED push switch. (a) The MAN legend in the AUTO 

 FEED push switch goes off. 

(b) The fuel transfer stops. 

(10) Push (out) the CTR TANK PUMP 1 and 

2 push switches 

(a) The ON legends in the CTR 

 TANK PUMP1 and 2 push 

 switches go off. 

(11) Remove the target and anti-target, 

proximity sensing system set (tool No. 

28-0-4733) part of target (tool No. 28-0-

4733-08) from the LH ground/flight 
Service Bulletin 

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Jun 15/09 SBF100-28-052 

Page 15 

proximity sensor. 
Service Bulletin 

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SBF100-28-052 Jun 15/09 

Page 16 

Operational Test of the Fuel Control Panel for F28MK0100 

Action Result

 

1. Switch on electrical power 

2. Install the target and anti-target, 

proximity sensing system set () 

(tool No. 28-0-4733) part of 

target (tool No. 28-0-4733-08) 

on the LH ground/flight 

proximity sensor. 

 

2. Make sure the FUEL control 

panel is in the correct 

configuration. 

 a. The ON and the flowbar legend in 

the X-FEED pushswitch are off. 

b. The CLOSED legends in the SYS 

SHUT OFF indicators are off. 

c. The FAULT legends in the L1, L2, 

R1, and R2 PUMP pushswitches 

are off. 

d. The OFF legends in the L1, L2, 

R1, and R2 PUMP pushswitches 

are on. 

e. The FAULT and the MAN legend 

in the AUTO FEED pushswitch 

are off. 

f. The LO P and the ON legends in 

the CTR TANK PUMP 

pushswitches are off. 

3. On the TEST panel, push and 

hold the ANN switch. 

 a. On the FUEL control panel: 

 The ON and the flowbar 

legends in the X-FEED 

pushswitch come on 

 The CLOSED legends in 

the SYS SHUT OFF 

indicators come on 

 The OFF legends in the 

PUMP L1, L2, R1 and R2 

pushswitches stay on 

 The ON legends in the CTR 
Service Bulletin 

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Jun 15/09 SBF100-28-052 

Page 17 

TANK PUMP 

pushswitches come on. 

4. On the TEST panel, release the 

ANN switch. 

 a. On the FUEL control 

 panel: 

 The ON and the flowbar 

legends in the X-FEED 

pushswitch go off 

 The CLOSED legends in 

the SYS SHUT OFF 

indicators go off 

 The OFF legends in the 

PUMP L1, L2, R1 and R2 

pushswitches stay on 

 The ON legends in the 

CTR TANK PUMP 

pushswitches go off. 

5. On the TEST panel, push the 

WARN SYS pushswitch. 

 a. The TEST legend in the WARN 

SYS pushswitch comes on. 

b. On the FUEL control panel, the 

FAULT and LO P legends come 

on for a short moment. 

c. On the TEST panel, the TEST 

legend in the WARN SYS 

pushswitch goes off and the 

CMPL legend comes on. 

6. On the TEST panel, push the 

WARN SYS pushswitch. 

 a. The CMPL legend in the WARN 

SYS pushswitch goes off. 

7. On the Maintenance and Test 

Panel B (MTP B), operate the 

CPT TEST switch for two 

seconds, then release. 

 a. On the FUEL control panel, the 

displays show a slow reduction of 

up to 110 KG (220 LB). 

8. Between 5 and 10 seconds after 

the first operation, operate the 

CPT TEST switch and hold. 

 a. On the FUEL control panel, the 

displays show 0000 thru 9999. 

b. On the FUEL control panel, the 

displays show zero. 

c. After 14 seconds all displays 

return to normal. 

9. Release the CPT TEST switch. 
Service Bulletin 

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SBF100-28-052 Jun 15/09 

Page 18 

10. On the FUEL control panel, 

push the X-FEED switch. 

 a. The ON light in the X-FEED switch 

comes on. 

b. When both crossfeed valves are 

open, the flowbar legend in the XFEED switch comes on. 

11. On the FUEL control panel, 

push the X-FEED switch. 

 a. The ON light in the X-FEED 

switch goes off. 

b. The flowbar legend in the X-FEED 

switch goes off. 

12. On the ENGINE FIRE control 

panels, push the OVRD 

pushbuttons and pull the engine 

fire handles 1 and 2. 

 a. On the FUEL control panel, the 

CLOSED legends in the SYS 

SHUT OFF indicators come on. 

13. Push in the engine fire handles 

1 and 2. 

 a. On the FUEL control panel, the 

CLOSED legends in the SYS 

SHUT OFF indicators go off. 

14. On the FUEL control panel, 

push the PUMP L1, L2, R1 and 

R2 pushswitches. 

 a. The OFF legends in the PUMP L1, 

L2, R1 and R2 pushswitches go 

off. 

15. Push the PUMP L1, L2, R1 and 

R2 pushswitches. 

 a. The OFF legends in the PUMP 

L1, L2, R1 and R2 pushswitches 

come on. 

16. On the FUEL control panel, 

push the CTR TANK PUMP 

pushswitches 1 and 2. 

 a. The ON legends in the CTR TANK 

PUMP pushswitches 1 and 2 

come on. 

b. On the Tank Contents Displays 

(TCD): 

 The fuel quantity on the 

center display decreases 

 The fuel quantities on the 

LH and RH displays 

increase. 

NOTE: Each transfer pump transfers approximately 20 kg (45 lb) per minute. 

17. Open the circuit breaker(s): 

CENTER TANK 

PUMP 1 CTL 

P1 CB1107A 

 a. The fuel transfer stops. 

b. After 5 minutes the FAULT legend 

comes on in the AUTO FEED 

pushswitch. 
Service Bulletin 

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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 

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Jun 15/09 SBF100-28-052 

Page 19 

CENTER TANK 

PUMP 2 CTL 

P3 CB1108A c. The ON legends stay on in the 

CTR TANK PUMP 1 and 2 

pushswitches. 

d. A single chime is heard. 

e. On the MFDU, the FUEL AUTO 

FEED message comes on. 

18. Close the circuit breaker(s): 

CENTER TANK 

PUMP 1 CTL 

P1 CB1107A 

CENTER TANK 

PUMP 2 CTL 

P3 CB1108A 

 

19. Open the circuit breaker(s): 

FUEL CPT PWR 

LH 

P2 CB0404A 

FUEL CPT PWR 

RH 

P2 CB0405A 

 

20. Close the circuit breaker(s): 

FUEL CPT PWR 

LH 

P2 CB0404A 

FUEL CPT PWR 

RH 

P2 CB0405A 

 a. The fuel transfer starts again.

b. The FAULT legend in the AUTO 

FEED pushswitch goes off. 

c. On the MFDU, the FUEL AUTO 

FEED message goes off. 

21. On the FUEL control panel, 

push the AUTO FEED 

pushswitch. 

 a. The MAN legend in the AUTO 

FEED pushswitch comes on. 

22. Push the CTR TANK PUMP 

pushswitches 1 and 2. 

 a. The ON legends in the CTR TANK 

PUMP pushswitches 1 and 2 go 

off. 

b. The fuel transfer stops. 

23. Push the AUTO FEED 

pushswitch. 

 a. The MAN legend in the AUTO 

FEED pushswitch goes off. 

24. Remove the target and antitarget, proximity sensing 

system set () (tool No. 28-0-

 
Service Bulletin 

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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 

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SBF100-28-052 Jun 15/09 

Page 20 

4733) part of target (tool No. 

28-0-4733-08)from the LH 

ground/flight proximity sensor. 

 

 
Service Bulletin 

Fokker 70/100 

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 permitted except with the prior written permission of Fokker Services B.V. 

Jun 15/09 SBF100-28-052 

Page 21 

Operational Test of the Fuel Control Panel for F28MK0070

Action Result

 

Switch on electrical power 

1. Install the target and anti-target, proximity 

sensing system set () (tool No. 28-0-4733) 

part of target (tool No. 28-0-4733-08) on 

the LH ground/flight proximity sensor. 

 

2. Make sure the FUEL control panel is in the 

correct configuration. 

 a. The ON and the flowbar legend 

in the X-FEED pushswitch are 

off. 

b. The CLOSED legends in the 

SYS SHUT OFF indicators are 

off. 

c. The FAULT legends in the L1, 

L2, R1, and R2 PUMP 

pushswitches are off. 

d. The OFF legends in the L1, L2, 

R1, and R2 PUMP 

pushswitches are on. 

e. The FAULT and the MAN 

legend in the AUTO FEED 

pushswitch are off. 

f. The LO P and the ON legends 

in the CTR TANK PUMP 

pushswitches are off. 

3. On the TEST panel, push and hold the 

ANN switch. 

 a. On the FUEL control panel: 

 The ON and the flowbar 

legends in the X-FEED 

pushswitch come on 

 The CLOSED legends in 

the SYS SHUT OFF 

indicators come on 

 The OFF legends in the 

PUMP L1, L2, R1 and 

R2 pushswitches stay 

on 
Service Bulletin 

Fokker 70/100 

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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 

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SBF100-28-052 Jun 15/09 

Page 22 

 The ON legends in the 

CTR TANK PUMP 

pushswitches come on. 

4. On the TEST panel, release the ANN 

switch. 

 a. On the FUEL control panel: 

 The ON and the flowbar 

legends in the X-FEED 

pushswitch go off 

 The CLOSED legends in 

the SYS SHUT OFF 

indicators go off 

 The OFF legends in the 

PUMP L1, L2, R1 and 

R2 pushswitches stay 

on 

 The ON legends in the 

CTR TANK PUMP 

pushswitches go off. 

5. On the TEST panel, push the WARN SYS 

pushswitch. 

 a. The TEST legend in the WARN 

SYS pushswitch comes on. 

b. On the FUEL control panel, the 

FAULT and LO P legends come 

on for a short moment. 

c. On the TEST panel, the TEST 

legend in the WARN SYS 

pushswitch goes off and the 

CMPL legend comes on. 

6. On the TEST panel, push the WARN SYS 

pushswitch. 

 a. The CMPL legend in the WARN 

SYS pushswitch goes off. 

7. On the Centralized Fault and Display Unit 

(CFDU), push the ON pushswitch. 

 a. The CFDU shows the MAIN 

MENU page. 

8. On the CFDU, use the UP/DN switches to 

move the cursor to SYSTEM TESTS. 

 

9. On the CFDU, push the ENTER switch. a. The CFDU shows the SYSTEM 

TESTS page. 

10. On the CFDU, use the UP/DN switches to 

move the cursor to 28 FUEL QTY 

TOTALIZER. 

 

11. On the CFDU push and release the LH a. On the FUEL control panel, the 
Service Bulletin 

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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 

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Jun 15/09 SBF100-28-052 

Page 23 

ENTER switch. displays show a slow reduction 

of up to 110 KG (220 LB). 

12. On the CFDU, (after approximately 7 

seconds), push and hold the LH ENTER 

switch. 

 a. On the FUEL control panel, the 

displays show 0000 and cycles 

thru to 9999. 

b. On the FUEL control panel, all 

displays show zero. 

c. After 14 seconds all displays 

return to normal. 

13. On the CFDU, release the LH ENTER 

switch. 

 

14. On the CFDU, push the MAIN MENU 

switch. 

 a. The CFDU shows the MAIN 

MENU page. 

15. On the FUEL control panel, push the XFEED switch. 

 a. The ON light in the X-FEED 

switch comes on. 

b. When both crossfeed valves are 

open, the flowbar legend in the 

X-FEED switch comes on. 

16. On the FUEL control panel, push the XFEED switch. 

 a. The ON light in the X-FEED 

switch goes off. 

b. The flowbar legend in the XFEED switch goes off. 

17. On the ENGINE FIRE control panels, push 

the OVRD pushbuttons and pull the 

engine fire handles 1 and 2. 

 a. On the FUEL control panel, the 

CLOSED legends in the SYS 

SHUT OFF indicators come on.

18. Push in the engine fire handles 1 and 2. a. On the FUEL control panel, the 

CLOSED legends in the SYS 

SHUT OFF indicators go off. 

19. On the FUEL control panel, push the 

PUMP L1, L2, R1 and R2 pushswitches. 

 a. The OFF legends in the PUMP 

L1, L2, R1 and R2 

pushswitches go off. 

20. Push the PUMP L1, L2, R1 and R2 

pushswitches. 

 a. The OFF legends in the PUMP 

L1, L2, R1 and R2 

pushswitches come on. 

21. Push the CTR TANK PUMP pushswitches 

1 and 2. 

 a. The ON legends in the CTR 

TANK PUMP pushswitches 1 

and 2 come on. 
Service Bulletin 

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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 permitted except with the prior written permission of Fokker Services B.V. 

SBF100-28-052 Jun 15/09 

Page 24 

b. On the Tank Contents Displays 

(TCD): 

 The fuel quantity on the 

center display 

decreases 

 The fuel quantities on 

the LH and RH displays 

increase. 

NOTE: Each transfer pump transfers approximately 20 kg (45 lb) per minute. 

22. Open the circuit breaker(s): 

CENTER TANK PUMP 1 

CTL 

P1 CB1107A 

CENTER TANK PUMP 2 

CTL 

P3 CB1108A 

 a. The fuel transfer stops. 

b. After 5 minutes the FAULT 

legend comes on in the AUTO 

FEED pushswitch. 

c. The ON legends stay on in the 

CTR TANK PUMP 1 and 2 

pushswitches. 

d. A single chime is heard. 

e. On the MFDU, the FUEL AUTO 

FEED message comes on. 

23. Close the circuit breaker(s): 

CENTER TANK PUMP 1 

CTL 

P1 CB1107A 

CENTER TANK PUMP 2 

CTL 

P3 CB1108A 

 

24. Open the circuit breaker(s): 

FUEL CPT PWR LH P2 CB0404A 

FUEL CPT PWR RH P2 CB0405A 

 

25. Close the circuit breaker(s): 

FUEL CPT PWR LH P2 CB0404A 

FUEL CPT PWR RH P2 CB0405A 

 a. The fuel transfer starts again. 

b. The FAULT legend in the AUTO 

FEED pushswitch goes off. 

c. On the MFDU, the FUEL AUTO 

FEED message goes off. 
Service Bulletin 

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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 permitted except with the prior written permission of Fokker Services B.V. 

Jun 15/09 SBF100-28-052 

Page 25 

26. On the FUEL control panel, push the 

AUTO FEED pushswitch. 

 a. The MAN legend in the AUTO 

FEED pushswitch comes on. 

27. Push the CTR TANK PUMP pushswitches 

1 and 2. 

 a. The ON legends in the CTR 

TANK PUMP pushswitches 1 

and 2 go off. 

b. The fuel transfer stops. 

28. Push the AUTO FEED pushswitch. a. The MAN legend in the AUTO 

FEED pushswitch goes off. 

29. On the CFDU, push the ON switch. a. The CFDU goes off. 

30. Remove the target and anti-target, 

proximity sensing system set () (tool No. 

28-0-4733) part of target (tool No. 28-0-

4733-08)from the LH ground/flight 

proximity sensor. 

 
Service Bulletin 

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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 permitted except with the prior written permission of Fokker Services B.V. 

SBF100-28-052 Jun 15/09 

Page 26 

Part 2: The Rework of the Wiring for MFDU 1 and MFDU 2. 

A. Remove the AC Electrical Power, refer to the AMM chapter 24-00-00. 

B. Remove and keep both Multi Function Display Units, refer to the AMM chapter 31-61-

01. 

C. Get access to plug P 0949B and plug P 0950B. 

D. Rework the wiring for MFDU 1 and MFDU 2. 

(1) Look-up the aircraft serial number in Table 1. 

NOTE: If the aircraft serial number is not mentioned in Table 1 continue 

with step D (2). 

(a) Find the applicable figure and fill in the wire numbers as shown in Table 1. 

(b) Do the rework of the wiring on both plugs as shown in the figure. 

Steps (2) thru (4) are applicable for aircraft serial numbers not mentioned in Table 1. 

(2) Define which figure is applicable for your aircraft serial number as follows: 

- If in Part 1 step F. the Parity of MFDU 1 shows OPEN use figure 1. 

- If in Part 1 step F. the Parity of MFDU 2 shows OPEN use figure 2. 

(3) Do the rework as shown in the applicable figure and fill in the wire numbers as 

present in the aircraft. 

(4) Send a copy of the figure you filled in to Fokker Services to give us the possibility 

to update your WDM. 

E. Install both Multi Function Display Units, refer to the AMM chapter 31-61-01. 

F. Do the after installation test of both MFDU’s, refer to the AMM chapter 31-61-01. 

NOTE: Verify that among others on the MDU INPUT VERIFICATION PAGE of both 

MFDU’s the following discrete inputs are shown: 

MFDU no. 1 MFDU no. 2

CENTER TANK - BAG TANK CENTER TANK - BAG TANK 

PARITY - see note PARITY - see note. 

NOTE: The discrete input PARITY shows GROUND or OPEN (wireend cap installed) depending on the situation as shown in the 

used figure. 

G. Continue with step F.(5) of Part 1 
Service Bulletin 

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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 permitted except with the prior written permission of Fokker Services B.V. 

Jun 15/09 SBF100-28-052 

Page 27 

Part 3: The installation of the “autofeed fault enable” wire. 

A. The Job Set-Up. 

(1) Remove all electrical power. Refer to the AMM chapter 24-00-00. 

(2) Put up warning signs to tell persons: 

"DO NOT CONNECT THE ELECTRICAL POWER" 

"DO NOT CONNECT THE BATTERIES". 

(3) Remove and keep the following furnishing: 

(a) Remove the Co-pilot seat. Refer to the AMM chapter 25-11-01. 

(b) Remove these panels: 

 Panel number Description Position 

 211AZ Ceiling Panel Flight Deck 

 241EZ Entrance Panel RH Flight Deck 

 246AZ Backwall Panel Flight Deck 

 248BZ Backwall Panel Flight Deck 

 228CZ Holder RH Flight Deck 

 228DZ Console RH Flight Deck 

 228EZ Console RH Flight Deck 

 228FZ Console RH Flight Deck 

 228GZ Floor Panel RH Flight Deck 

 228HZ Console RH Flight Deck 

B. Removal of Main Instrument Panel E. Refer to IPC 31-11-01. 

(1) Remove and keep Main Instrument Panel E according to AMM chapter 31-11-01. 

C. Removal of EFIS Display Units 

(1) Remove and keep the EFIS Display Units 3 and 4 (DU 3 & DU4). Refer to AMM 

chapter 34-26-01. 

D. Removal of Main Instrument Panel F. Refer to IPC 31-11-01. 

(1) Remove and keep Main Instrument Panel F according to AMM chapter 31-11-01. 

E. Removal of Galley 1 

(1) Remove and keep Galley 1 according to AMM chapter 25-31-00. 

F. Installation of the “autofeed fault enable” wires. 

Route the wires along the existing cablelooms in the correct separation. 
Service Bulletin 

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SBF100-28-052 Jun 15/09 

Page 28 

(1) Prepare 2 wires by identifying the wires, ABA2478-A6 (6 meter) and ADA3170-A6 

(8 meter). Use: 

- 14m wire pn F0N9-1780NK22 

- AR sleeve, identification pn F0N1-3613-3-9 

(2) Connect wire ABA2478-A6 to pin V of FCP plug P0722. Use: 

- 1 wire prepared in step (1) 

- 1 socket pn M39029/57-357 (FC256). 

(3) Route this wire to the connector bracket in zone 247 according to drawings 

D42213 sheet 2 and D42250 sheet 23. 

(4) Connect wire ADA3170-A6 to pin JJ of CPT plug P0431B. Use: 

- 1 wire prepared in step (1) 

- 1 socket pn M39029/57-357 (FC256). 

(5) Route this wire to the connector bracket in zone 247 according to drawings 

D42220 sheet 60 and sheet 71 and D42126 sheet 38. 

(6) Install splice SP8356 to join the wires. Use: 

- 1 Splice pn M81824/1-1 (FC400). 

G. Check if wires are correctly installed by checking the continuity between the CPT plug 

P0431B, pin JJ and the Fuel Control Panel plug P0722C, pin V. 

H. Installation of Galley 1 

(1) Install Galley 1 according to AMM chapter 25-31-00. 

I. Installation of Main Instrument Panel F. Refer to IPC 31-11-01. 

(1) Install Main Instrument Panel F according to AMM chapter 31-11-01. 

J. Installation of EFIS Display Units 

(1) Install the EFIS Display Units 3 and 4 (DU 3 & DU4). Refer to AMM chapter 34-26-

01. 

K. Installation of Main Instrument Panel E. Refer to IPC 31-11-01. 

(1) Install Main Instrument Panel E according to AMM chapter 31-11-01. 

L. Install furnishing removed in step A (3). 

M. Go to Part 1 step D. 
Service Bulletin 

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Jun 15/09 SBF100-28-052 

Page 29 

Aircraft wire numbers at MFDU 1 wire numbers at MFDU 2 

sn 

Fig. 

DCAxxxx-A5 DCAyyyy-A5 DDAxxxx-A2 DDAyyyy-A2 

11487 1 DCA3323-A5 - DDA2453-A2 DDA0655-A2 

11492 1 DCA3323-A5 - DDA2453-A2 DDA0655-A2 

11493 1 DCA3323-A5 - DDA2453-A2 DDA0655-A2 

11494 1 DCA3323-A5 - DDA2453-A2 DDA0655-A2 

11495 1 DCA3323-A5 - DDA2453-A2 DDA0655-A2 

11496 2 DCA4101-A5 DCA3120-A5 DDA2453-A2 - 

11500 2 DCA4101-A5 DCA3120-A5 DDA2453-A2 - 

11509 1 DCA3323-A5 - DDA2453-A2 DDA0655-A2 

11521 2 DCA3323-A5 DCA0003-A5 DDA2453-A2 - 

11528 2 DCA4101-A5 DCA3120-A5 DDA2453-A2 - 

11536 2 DCA4101-A5 DCA3120-A5 DDA2453-A2 - 

11537 2 DCA4101-A5 DCA3120-A5 DDA2453-A2 - 

11545 1 DCA3323-A5 - DDA2453-A2 DDA0011-A2 

11547 1 DCA4101-A5 - DDA2453-A2 DDA0655-A2 

11549 1 DCA3324-A5 - DDA1910-A2 DDA2453-A2 

11553 2 DCA4101-A5 DCA3120-A5 DDA2453-A2 - 

11554 1 DCA3324-A5 - DDA1910-A2 DDA2453-A2 

11555 1 DCA3324-A5 - DDA1910-A2 DDA2453-A2 

11557 1 DCA3324-A5 - DDA1910-A2 DDA2453-A2 

11559 1 DCA3324-A5 - DDA1910-A2 DDA2453-A2 

11560 1 DCA3324-A5 - DDA1910-A2 DDA2453-A2 

11561 2 DCA4101-A5 DCA3120-A5 DDA2453-A2 - 

11563 2 DCA4101-A5 DCA3224-A5 DDA2453-A2 - 

11568 1 DCA3324-A5 - DDA1910-A2 DDA2453-A2 

11570 2 DCA4101-A5 DCA3121-A5 DDA2453-A2 - 

11573 1 DCA4101-A5 - DDA2453-A2 DDA0655-A2 

11574 2 DCA4101-A5 DCA3121-A5 DDA2453-A2 - 

11575 2 DCA4101-A5 DCA3224-A5 DDA2453-A2 - 

11576 2 DCA3323-A5 DCA3325-A5 DDA2453-A2 - 

11577 2 DCA3323-A5 DCA3325-A5 DDA2453-A2 - 

11578 2 DCA3323-A5 DCA3325-A5 DDA2453-A2 - 

11579 2 DCA3323-A5 DCA3325-A5 DDA2453-A2 - 

11581 2 DCA3323-A5 DCA3325-A5 DDA2453-A2 - 

11582 2 DCA3323-A5 DCA3325-A5 DDA2453-A2 - 

11583 2 DCA3323-A5 DCA3325-A5 DDA2453-A2 - 

Table 1
Service Bulletin 

Fokker 70/100 

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 permitted except with the prior written permission of Fokker Services B.V. 

SBF100-28-052 Jun 15/09 

Page 30 

Modification of the wiring to MFDU 1 and MFDU 2 

For the applicable aircraft serial number and wire numbers refer to Table 1 

Figure 1 

M0949A P 0949B

MFDU 1 FC 442 SP1100 

M0950A P 0950B

MFDU 2 FC 442 SP1101 

EC2821

FC 430

EC2822

FC 430

Legenda

Parity 

cable connection 

Install wire-end 

Center 5G 

8F 

31-61-21 

DDAyyyyCenter 5G DDAxxxxParity 8F 

DCAxxxx- 31-61-21 

225 225 

225

225 225 

225
Service Bulletin 

Fokker 70/100 

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 permitted except with the prior written permission of Fokker Services B.V. 

Jun 15/09 SBF100-28-052 

Page 31 

Modification of the wiring to the MFDU 1 and MFDU 

For the applicable aircraft serial number and wire numbers refer to Table 1 

Figure 2 

M0949 P 

MFDU FC SP110

EC282

FC 

EC282

FC 

M0950 P 

MFDU FC SP110

Legend

Center 5G DDAxxxx31-61-

Parit 8F DCAyyyyCenter 5G DCAxxxx31-61-

Parit 8F

cable connection 

Install wire-end 

225 225

225

225 225

225
Service Bulletin 

Fokker 70/100 

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 permitted except with the prior written permission of Fokker Services B.V. 

SBF100-28-052 Jun 15/09 

Page 32 

The Modification of the Center Wing Tank Fuel Transfer Logic. 

Figure 3 

Remove/Install Connector

Plug P0431B 

Remove/Install CPT

Remove/Install Connector

Plug P0722B 

Remove/Install Panel

Zone 214 





Manual Change Notification – Operational Documentation 

Fokker 70/100 

Jun 15/09 MCNO F100-052 

Page 1 of 8 

MCNO-F100-052 

Subject: The modification of the Center Wing Tank Fuel Transfer Logic.

Reason: This MCNO is issued to provide you with the alterations which are 

introduced by SBF100-28-052. 

Effectivity: See SBF100-28-052.

Compliance: Once you have determined the applicability of this MCNO for one or 

more of your aircraft, incorporate this information into the affected 

manual(s). 

In case the Airplane Flight Manual (AFM) and/or the Master Minimum 

Equipment List (MMEL) is affected, make sure that the applicable 

change is incorporated, as the AFM and MMEL are required 

documents. 

 

Publications 

Affected: Airplane Flight Manual (AFM). 

Aircraft Operating Manual (AOM). 

Quick Reference Handbook (QRH). 

 Master Minimum Equipment List (MMEL). 

Add Note: See next page. 
Manual Change Notification – Operational Documentation 

Fokker 70/100 

Jun 15/09 MCNO F100-052 

Page 2 of 8 

AFM 70 

AFM 100 

 AOM 100 

 AOM 70/100 

 Chapter: 4 / Abnormal Procedures 

 Section: 4.00.00 / Contents 

Add in 4.06.01 FUEL below - Fuel Suction Feed Procedure, the 

following: 

- Center Tank Pump Low Pressure 

Replace - Center Tank Pump Faults 

With: 

- Center Tank Pumps 

 QRH 70/100 

 Chapter: 6 / Abnormal Procedures 

 Section: 6.00 / Contents 

 Add in 6.05 FUEL below - Fuel Suction Feed Procedure......page 1, 

the following: 

- Center Tank Pump Low Pressure........................page 1 

Replace - Center Tank Pump Faults 

With: 

- Center Tank Pumps..........................................page 1 
Manual Change Notification – Operational Documentation 

Fokker 70/100 

Jun 15/09 MCNO F100-052 

Page 3 of 8 

AFM 70 

AFM 100 

Chapter 4 / Abnormal Procedures 

Section 4.06.01 

QRH 70/100 

Chapter 6 / Abnormal Procedures 

Section 6.05 

Add after the FUEL SUCTION FEED PROCEDURE, the following 

procedure: 

AFM 70 

AFM 100 

Chapter 4 / Abnormal Procedures 

Section 4.06.01 

QRH 70/100 

Chapter 6 / Abnormal Procedures 

Section 6.05 

Delete CENTER TANK PUMP FAULT procedure and the DOUBLE 

CENTER TANK FAULT procedure. 

Add after the CENTER TANK PUMP LOW PRESSURE procedure the 

following procedure: 

CTR TANK PUMP ........................................................OFF 

CENTER TANK PUMP LOW PRESSURE 

CTR TANK PUMPS 1 AND 2.......................................OFF 

CENTER TANK PUMPS
Manual Change Notification – Operational Documentation 

Fokker 70/100 

Jun 15/09 MCNO F100-052 

Page 4 of 8 

AOM 100 

AOM 70/100

Chapter 4 / Abnormal procedures 

Section: 4.06.01 / Fuel System 

Add after the FUEL SUCTION FEED PROCEDURE, the following 

procedure: 

Indications:

Single chime 

CTR TANK PUMP LO P on OVHD panel 

MFDS: CTR TK PUMP 1 (2) LO P 

Remarks:

- The operative center tank pump will transfer fuel to the 

corresponding wing tank. Monitor fuel transfer, if required use XFEED to keep wing tank quantities in balance. 

Delete the CENTER TANK PUMP FAULT procedure and the 

DOUBLE CENTER TANK FAULT procedure including Indications: and 

Remarks:. 

Add after the CENTER TANK PUMP LOW PRESSURE the following 

procedure: 

Indications:

Single chime 

CTR TANK PUMP 1 LO P and CTR TANK PUMP 2 LO P on OVHD 

panel 

MFDS: CTR TK PUMPS 

Remarks:

- Remaining center tank fuel unusable. 

CTR TANK PUMP ........................................................OFF 

CENTER TANK PUMP LOW PRESSURE 

CTR TANK PUMPS 1 AND 2.......................................OFF 

CENTER TANK PUMPS
Manual Change Notification – Operational Documentation 

Fokker 70/100 

Jun 15/09 MCNO F100-052 

Page 5 of 8 

AFM 70 

AFM 100 

Chapter: 5 / Normal Procedures 

Section: 5.06.01 / FUEL 

Delete all text mentioned after: 

X-FEED.......................................................OFF 

AOM 100 

Chapter: 1 / System Descriptions 

Section: 1.06.01 / Fuel System 

Change FUEL TRANSFER on page 1 with the following:

FUEL TRANSFER 

Fuel from the center tank is transferred to the wing tanks by two center 

tank pumps. Each pump supplies the onside collector tank. When a 

collector tank is full, the excess fuel flows into the outer tank. 

Normally, when the center tank pump push buttons are switched ON 

and the AUTO FEED push button is blank fuel transfer is controlled 

automatically. 

Automatic fuel transfer takes place only in flight when the fuel quantity 

in the wing tanks falls below a predetermined value. 

If the automatic transfer fails, fuel transfer can be controlled manually. 

Manual control is possible only when the AUTO FEED push button is 

depressed to MAN. In this case fuel transfer is controlled directly with 

the center tank pump push buttons. If the center tank becomes empty, 

a center tank pumps alert is presented. 

Pump Failures

Pump failures will be indicated by a center tank pump low pressure 

alert. 

If one pump is inoperative the remaining pump will result in a fuel 

asymmetry between the wing tanks. 

If both pumps are inoperative the center tank contents become 

unusable. 
Manual Change Notification – Operational Documentation 

Fokker 70/100 

Jun 15/09 MCNO F100-052 

Page 6 of 8 

Change CTR TANK PUMP PB (1 and 2) legend on the fuel control 

panel 1.06.01 (page 5) with the following: 

Change the Alerts in 1.06.01 on page 10 with the following: 
Manual Change Notification – Operational Documentation 

Fokker 70/100 

Jun 15/09 MCNO F100-052 

Page 7 of 8 

AOM 70/100 

Chapter: 1 / System Descriptions 

Section: 1.01.01 / AIRCRAFT CONFIGURATION / CONFIGURATION 

LIST. 

Change in 1.06 FUEL SYSTEM

Fuel system

Center tank pump p/b indication .......................................FAULT / OFF 

With the following: 

Center tank pump p/b indication .............................................LO P /ON 

Master Minimum Equipment List 

In ATA 28 disregard seq no. 44-5 and 44-6 and use 44-3 and 44-4. 

Approval: If applicable, the technical content of the related AFM and/or MMEL 

pages has been approved by EASA or under the authority of DOA nr. 

EASA.21J.059. Obtaining approval of the revised manual(s) by the 

local airworthiness authority is the responsibility of the operator. 

NOTE 1: Please note that it is the responsibility of the operator to control the 

revision status of the affected manual(s). Therefore record the 

incorporation of the MCNO at the appropriate place(s). 

NOTE 2: If you have a revision service contract with Fokker Services the 

affected manual(s) will be revised on a regular time base except if this 

MCNO is related to a recommended Service Bulletin in which case the 

affected manual(s) will only be revised after notification to Fokker 

Services that the Service Bulletin has been incorporated (the AFM and 

MMEL revision service is included in the CASA-agreement). 
Manual Change Notification – Operational Documentation 

Fokker 70/100 

Jun 15/09 MCNO F100-052 

Page 8 of 8 

INTENTIONALLY 

LEFT 

BLANK 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

JUN 15/09 

MCNM F100-126 

Page 1 of 7 

MCNM-F100-126 

Subject : Fuel – Modification of the Center Wing Tank Fuel Transfer Logic. 

Reason : This MCN is issued to provide you with the changes on the content(s) of the 

affected manual(s), due to the introduction of SBF100-28-052. 

Effectivity : Refer to SBF100-28-052. 

 

Compliance : Once you have determined the applicability of this MCN for one or more of your 

aircraft, incorporate this information into the applicable manual(s). 

Publications 

Affected : The Aircraft Maintenance Manual (AMM) 

 The Illustrated Parts Catalogue (IPC) 

 The Wiring Manual (WM) 

 The Trouble Shooting Schematics Manual (TSSM) 

Change Note : AMM

Update AMM Task 12-11-02-650-823-A as follows: 

- In Subtask 12-11-02-650-023-A01/A02, change step (4) as follows: 

- If your manual contains Subtask 12-11-02-650-023-A01 (F28Mk0100 aircraft only), then 

change the number of the Subtask to 12-11-02-650-023-A03 

- If your manual contains Subtask 12-11-02-650-023-A02 (F28Mk0070 aircraft only), then 

change the number of the Subtask to 12-11-02-650-023-A04. 

Update AMM Task 28-12-04-400-814-A as follows: 

- Replace the steps (1) thru (11) of both paragraphs given in Subtask 28-12-04-870-014-A01, 

by these steps: 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

JUN 15/09 

MCNM F100-126 

Page 2 of 7 

- Change the number of Subtask 28-12-04-870-014-A01 to Subtask 28-12-04-870-014-A00. 

- Replace the Action/Result steps (1) thru (4) of both paragraphs given in Subtask 28-12-04-

710-014-A01, by these Action/Result steps: 

- Change the number of Subtask 28-12-04-710-014-A01 to Subtask 28-12-04-710-014-A00. 

Update AMM Task 28-16-00-ZZ3-810-B as follows: 

- Change the Figure reference given in front of paragraph B, to Fig. 28-16-00-990-060-B01. 

- In paragraph B., (1)(a), replace the first sentence by the text “In the manual mode, when the 

pump switches are ON, the pumps operate” 

- In paragraph B., (1)(b), change the text of the first condition to enable auto feed, to “One or 

both CWT pump switches must be in the ON position” 

- In paragraph B., (1)(b), delete this text: 

“• The fuel quantity in the CWT is not less than 10 kg (22 lb) for more than 15 minutes” 

“• The fuel quantity in the CWT becomes less than 10 kg (22 lb)” 

- In paragraph B., (2)(a), replace the four conditions given for the alert, by these three 

conditions: 

• The CTR TANK PUMP 1 pump-switch and the CTR TANK PUMP 2 pump-switch must in 

the ON position 

• The aircraft must be in the flight mode 

• The fuel quantities in both main tanks must be less than 3300 kg (7260 lb). 

- At the end of the Task, replace the illustration of Figure 28-16-00-990-060-B00, by Figure 1 

of this MCN, and re-identify as Figure 28-16-00-990-060-B01. 

Update AMM Task 28-16-00-710-825-B as follows: 

- In Subtask 28-16-00-710-015-B01, delete Action/Result steps (1) thru (8) of the operational 

test of the transfer pumps 

- Incorporate the Action/Result steps (1) thru (11) of the operational test of the transfer 

pumps as shown on the pages 13 thru 15 of SBF100-28-052. 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

JUN 15/09 

MCNM F100-126 

Page 3 of 7 

Update AMM Task 28-16-03-400-814-A as follows: 

- Replace the steps (1) thru (11) of both paragraphs given in Subtask 28-16-03-870-014-A01, 

by these steps: 

- Change the number of Subtask 28-16-03-870-014-A01 to Subtask 28-16-03-870-014-A02. 

- Replace the Action/Result steps (1) thru (4) of both paragraphs given in Subtask 28-16-03-

710-014-A01, by these Action/Result steps: 

- Change the number of Subtask 28-16-03-710-014-A01 to Subtask 28-16-03-710-014-A00. 

Update AMM Task 28-22-00-ZZ2-810-A as follows: 

- In paragraph A., replace the second sentence of step (3)(e), by the text “The switches give 

an ON indication when they are pushed (in). They also give a LO P indication when an auto 

transfer procedure is completed. It also gives a LO P indication when the system is 

switched on but the fuel pressure is low”. 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

JUN 15/09 

MCNM F100-126 

Page 4 of 7 

Update AMM Task 28-22-01-400-814 as follows: 

If your manual contains Subtask 28-22-01-710-014-A02 (F28Mk0100 aircraft only), then change 

this Subtask as follows: 

- Change the number of the Subtask to 28-22-01-710-014-A04 

- Change the text of Result (2)(f) to “The LO P and the ON legends in the CTR TANK PUMP 

pushswitches are off” 

- Change the text “The OFF legends in the CRT TANK PUMP pushswitches come on” in 

Result (3)(a), to “The ON legends in the CTR TANK PUMP pushswitches come on” 

- Change the text “The OFF legends in the CRT TANK PUMP pushswitches go off” in Result 

(4)(a), to “The ON legends in the CTR TANK PUMP pushswitches go off” 

- Change the text of Result (5)(b) to “On the FUEL control panel, the FAULT and LO P 

legends come on for a short moment” 

- Change the text of Result (16)(a) to “The ON legends in the CTR TANK PUMP 

pushswitches 1 and 2 come on” 

- Change the text of Result (22)(a) to “The ON legends in the CTR TANK pushswitches 1 

and 2 go off”. 

If your manual contains Subtask 28-22-01-710-014-A05 (F28MK0070 aircraft only), then change 

this Subtask as follows: 

- Change the number of the Subtask to 28-22-01-710-014-A07 

- Change the text of Result (2)(f) to “The LO P and the ON legends in the CTR TANK PUMP 

pushswitches are off” 

- Change the text “The OFF legends in the CRT TANK PUMP pushswitches come on” in 

Result (3)(a), to “The ON legends in the CTR TANK PUMP pushswitches come on” 

- Change the text “The OFF legends in the CRT TANK PUMP pushswitches go off” in Result 

(4)(a), to “The ON legends in the CTR TANK PUMP pushswitches go off” 

- Change the text of Result (5)(b) to “On the FUEL control panel, the FAULT and LO P 

legends come on for a short moment” 

- Relocate the Action/Result step (15) in front of step (30), and re-identify this step as (29) 

- Re-identify the Action/Result steps between the steps (14) and (29) 

- Change the text of re-identified Result (21)(a) to “The ON legends in the CTR TANK PUMP 

pushswitches 1 and 2 come on” 

- Change the text of re-identified Result (27)(a) to “The ON legends in the CTR TANK 

pushswitches 1 and 2 go off”. 

Update AMM Task 28-43-00-ZZ3-810-B as follows: 

- In front of paragraph A., replace the reference to Fig. 28-43-00-990-060-B00 by Fig. 28-43-

00-990-060-B01 

- In paragraph A., replace the last sentence of (2), by the text “Thus, the FWS does not give 

an alert and the LO P legends in the CTR TANK PUMP pushswitches are off” 

- In paragraph B., replace the third sentence of (2), by the text “After a time delay of 120 

seconds, the FWS gives a level 1 alert, the MFDU shows the CTR TANK PUMP 1 or 2 LO 

P alert message and the LO P legends in the related CTR TANK PUMP pushswitch comes 

on” 

- At the end of the Task, replace the illustration of Figure 28-43-00-990-060-B00, by Figure 2 

of this MCN, and re-identify as Figure 28-43-00-990-060-B01. 

Update AMM Task 31-61-00-ZZ3-810-A as follows: 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

JUN 15/09 

MCNM F100-126 

Page 5 of 7 

- In paragraph B., if the Pin Set in the table shows the “ICW Tank” at the Pin Option for 

“Center Tank”, then change the text “ICW Tank” to “Bag Tank”. 

IPC

Update IPC Figure 28-22-01-01 as follows: 

- If Fig. Item 20 in the partslist shows the fuel-panel P/N A42707-429/-439 or W42707-401, 

then replace this partnumber by the fuel-panel P/N A42707-435 (indication in kg) 

- If Fig. Item 20 in the partslist shows the fuel-panel P/N A42707-431/-441, then replace this 

partnumber by the fuel-panel P/N A42707-437 (indication in lb) 

- If Fig. Item 230 does not show the plug P/N KJ6T24A61SBL or FON9-4971J61SB, then 

replace the applicable partnumber shown, by one of these two partnumbers. 

Update IPC Figure 28-41-03-01 as follows: 

- If Fig. Item 20 in the partslist shows the combined-processor totalizer P/N 0201KIP01-001 

or 0201KIP03-001, then replace this partnumber by the combined-processor totalizer P/N 

0201KIP01-003 (indication in kg) 

- If Fig. Item 20 in the partslist shows the combined-processor totalizer P/N 0202KIP02-002 

or 0202KIP04-002, then replace this partnumber by the combined-processor totalizer P/N 

0202KIP02-004 (indication in lb) 

- If Fig. Item 40 does not show the plug P/N KJ6T24A61SAL or FON9-4971J61SA, then 

replace the applicable partnumber shown, by one of these two partnumbers. 

WM

If applicable, update the Equipment List and 31-61-41/42 in WM Part 1, in accordance with 

SBF100-28-052. 

TSSM

If applicable, update 31-61-41/42 in accordance with SBF100-28-052. 

NOTE : If you have a Documentation Revision Service (DRS) with Fokker Services, this MCN 

will be included into your manuals, at the earliest opportunity. 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

JUN 15/09 

MCNM F100-126 

Page 6 of 7 

AMM Figure 28-16-00-990-060-B01 

Figure 1 
Manual Change Notification – Maintenance Documentation 

Fokker 70/100 

JUN 15/09 

MCNM F100-126 

Page 7 of 7 

AMM Figure 28-43-00-990-060-B01 

Figure 2