Commercial 

Airplanes 767

Service Bulletin

SPECIAL ATTENTION

Number: 767-28-0106

Original Issue: August 25, 2010

ATA System: 2841

SUBJECT: FUEL - Fuel Quantity Indicating System (FQIS)- Fuel Quantity Processor Unit, Low

Fuel Quantity Indication Test

Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15

CFR 730-774). An export license may be required before it is used for development, production or use by foreign

persons from specific countries. The controller of this data has the individual responsibility to abide by all export

laws.

ECCN: 9E991

BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET

Copyright © 2010 The Boeing Company

Unpublished Work - All Rights Reserved

Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable

subject matter. Boeing also claims copyright in this document as a compilation and/or collective work.

This document includes proprietary information owned by The Boeing Company and/or one or more third parties.

Treatment of the document and the information it contains is governed by contract with Boeing. For more

information, contact The Boeing Company, P.O. Box 3707, Seattle, Washington 98124.

Boeing, the Boeing signature, the Boeing symbol, 707, 717, 727, 737, 747, 757, 767, 777, 787, Dreamliner,

BBJ, DC-8, DC-9, DC-10, KC-10, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, Poseidon and the

Boeing livery are all trademarks owned by The Boeing Company; and no trademark license is granted in

connection with this document unless provided in writing by Boeing.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

1 of 27

6.0
BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

2 of 27

BOEING SERVICE BULLETIN 767-28-0106

BLANK PAGE
Table of Contents

Summary ...................................................... 5

1. PLANNING INFORMATION ........................................ 9

A. Effectivity ................................................ 9

1. Airplanes ............................................. 9

2. Spares Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

B. Concurrent Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

C. Reason . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

D. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

E. Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

F. Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

G. Manpower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

H. Weight and Balance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

I. Electrical Load Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

J. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

1. Existing Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2. Data supplied with this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3. Installation Drawings Used in the Preparation of this Service Bulletin . . . . . . . . . . . . 17

K. Publications Affected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

L. Interchangeability and Intermixability of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2. MATERIAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

A. Material - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

B. Industry Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

C. Parts Necessary For Each Airplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1. Kits/Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2. Parts and Materials Supplied by the Operator . . . . . . . . . . . . . . . . . . . . . . . . 19

3. Parts Modified and Reidentified . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4. Parts Removed and Not Replaced . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

D. Parts Necessary to Change Spares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

E. Special Tooling - Price and Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

F. Special Tooling Necessary to do this Service Bulletin . . . . . . . . . . . . . . . . . . . . . . . 19

3. ACCOMPLISHMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

A. GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

B. WORK INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

FIGURE 1: [Group 1] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

FIGURE 2: [Group 2] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

3 of 27

BOEING SERVICE BULLETIN 767-28-0106
BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

4 of 27

BOEING SERVICE BULLETIN 767-28-0106

BLANK PAGE
Commercial 

Airplanes 767

Service Bulletin

SPECIAL ATTENTION

Summary Number: 767-28-0106

Original Issue: August 25, 2010

ATA System: 2841

SUBJECT: FUEL - Fuel Quantity Indicating System (FQIS)- Fuel Quantity Processor Unit, Low

Fuel Quantity Indication Test

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.

CONCURRENT REQUIREMENTS

None.

BACKGROUND

This service bulletin provides test procedures to make sure that the Engine Indication and Crew Alerting System

(EICAS) receives both, the LOW FUEL and the FUEL CONFIG discrete signals from the Fuel Quantity Processor

Unit (FQPU), and the Fuel Quantity Indicating System (FQIS), is functioning correctly. If this service bulletin is

not incorporated flight crews may be unaware of low fuel situations that can lead to fuel exhaustion and extreme

emergency measures.

A 757-200 operator reported that the Low Fuel Indicating System failed to alert the flight crew that the fuel in

Left Hand (LH) and Right Hand (RH) main tanks were depleted below the minimum 2,200 lbs in either tank. The

Low Fuel Threshold is 2,200 lbs of fuel for either Main Fuel Tank for both 757 and 767 airplanes. When the fuel

in either LH or RH main tank is below 2,200 lbs, the EICAS should receive both the LOW FUEL and FUEL

CONFIG discrete signals from the FQPU in order for EICAS to display the LOW FUEL caution message.

The Operator reported to Boeing that the airplane arrived at it’s destination with main tank fuel levels below the

Low Fuel Threshold. The next flight crew reported 8,000 lbs of fuel in the Center Wing Tank (CWT), 1,800 lbs

of fuel in the Right Hand Main Fuel Tank and 1,400 lbs of fuel in the Left Hand Main Fuel tank.

Boeing determined this to be a safety issue for 767 airplanes due to the similarity of FQIS, EICAS and LFDS

Systems. Operators can expect to eliminate similar safety incidents by doing the interval tests in accordance

with this service bulletin.

The 767-400ER airplanes have Large Format Display System, LFDS, which replaces EICAS system, interfaces

with FQIS and has a different flight deck arangement from the 767-200, -300 and -300F airplanes.

757/767-SRP-28-0124 is related to this service bulletin.

ACTION

Test the Low Fuel Quantity Indicating System to make sure that the Low Fuel Indication and the Fuel Configuration

indication are functioning correctly.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

5 of 27
Make sure the EICAS caution message "LOW FUEL" shows on the EICAS display and the "FUEL CONFIG"

light on the Pilots Overhead Panel (P5 Panel) comes "ON".

If the test fails troubleshoot for wiring faults, bent connector pins, or damaged equipment. Repair or replace

damaged wires or equipment.

EFFECTIVITY

All 767 Airplanes. Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplanes.

COMPLIANCE

The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to this service

bulletin. The Airworthiness Directive will make the compliance tasks and times given in this service bulletin

mandatory.

Boeing recommends that the Inspection/Interval Test given in this service bulletin be done every 100 flight hours.

INDUSTRY SUPPORT INFORMATION

Boeing warranty remedies are not available for the Inspection/Interval Test given in this service bulletin.

MANPOWER

Refer to Paragraph 1.G., Manpower.

MATERIAL INFORMATION

None.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

6 of 27

BOEING SERVICE BULLETIN 767-28-0106
BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

7 of 27

BOEING SERVICE BULLETIN 767-28-0106
BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

8 of 27

BOEING SERVICE BULLETIN 767-28-0106
Commercial 

Airplanes 767

Service Bulletin

SPECIAL ATTENTION

Number: 767-28-0106

Original Issue: August 25, 2010

ATA System: 2841

SUBJECT: FUEL - Fuel Quantity Indicating System (FQIS)- Fuel Quantity Processor Unit, Low

Fuel Quantity Indication Test

BOEING RECOMMENDS THAT EACH OPERATOR EXAMINE THIS SERVICE BULLETIN IMMEDIATELY.

1. PLANNING INFORMATION

A. Effectivity

1. Airplanes

This service bulletin is for the airplanes shown below.

Refer to Service Bulletin Index Document D624T001 Part 3 for Airplane Variable Number, Line

Number, and Serial Number data.

NOTE: This service bulletin is for the airplanes identified below. The effectivity list shown below

is complete for airplanes through line number 1002. At least one airplane after line number

1002 is also affected by this service bulletin, and these airplanes are in Group(s) 1. These

airplanes will be added to the service bulletin's MyBoeingFleet.com (MBF) \"get effectivity\"

result when they are added to the MBF Fleet Profile Page.

GROUP CONFIGURATION DESCRIPTION

1 - All 767-200, -300, -300F Airplanes.

2 - All 767-400ER Airplanes.

Airplane Models:

767-200, 767-300, 767-300F, 767-400ER

Variable Number Group

VA001 - VA020 1

VA301 - VA315 1

VA501 - VA530 1

VA701 - VA719 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

9 of 27
Variable Number Group

VA801 - VA810 1

VB001 - VB002 1

VB051 - VB055 1

VB101 - VB125 1

VB201 - VB202 1

VB251 - VB253 1

VB281 - VB284 1

VB301 - VB302 1

VB321 - VB332 1

VB371 - VB373 1

VB401 1

VB441 - VB444 1

VE001 - VE003 1

VE021 - VE023 1

VE041 - VE043 1

VE061 - VE069 1

VE083 - VE086 1

VE101 - VE104 1

VE116 - VE118 1

VE121 - VE126 1

VE141 - VE152 1

VE171 - VE172 1

VF001 - VF002 1

VF041 - VF042 1

VF051 1

VF061 - VF062 1

VF071 - VF072 1

VF091 - VF093 1

VF101 - VF102 1

VF161 - VF162 1

VF171 - VF172 1

VF180 - VF184 1

VF251 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

10 of 27

BOEING SERVICE BULLETIN 767-28-0106
Variable Number Group

VK001 - VK016 1

VK021 - VK022 1

VK031 - VK056 1

VK081 - VK113 1

VK131 - VK133 1

VK141 - VK148 1

VK161 - VK164 1

VK171 1

VK181 1

VK186 1

VL001 - VL006 1

VL011 1

VL701 - VL703 1

VL751 - VL755 1

VL806 - VL807 1

VL871 - VL873 1

VL891 - VL900 1

VL911 - VL914 1

VL931 - VL932 1

VL941 1

VN001 - VN041 1

VN051 - VN064 1

VN081 - VN099 1

VN111 - VN127 1

VN130 - VN137 1

VN151 - VN158 1

VN163 - VN168 1

VN171 - VN174 1

VN191 - VN198 1

VN211 - VN212 1

VN221 - VN225 1

VN231 - VN234 1

VN241 - VN243 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

11 of 27

BOEING SERVICE BULLETIN 767-28-0106
Variable Number Group

VN251 - VN276 1

VN291 - VN293 1

VN301 - VN314 1

VN371 - VN372 1

VN376 1

VN381 - VN388 1

VN421 - VN427 1

VN436 1

VN471 - VN472 1

VN491 - VN513 1

VN531 - VN532 1

VN536 - VN537 1

VN541 - VN542 1

VN546 - VN547 1

VN551 1

VN556 - VN557 1

VN561 - VN562 1

VN631 - VN638 1

VN651 - VN658 1

VN671 - VN672 1

VN676 1

VN681 - VN691 1

VN731 - VN732 1

VN751 - VN753 1

VN791 - VN792 1

VN811 - VN813 1

VN921 - VN922 1

VN931 - VN936 1

VN951 - VN953 1

VN966 - VN972 1

VQ001 - VQ021 2

VQ071 - VQ086 2

VQ111 2

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

12 of 27

BOEING SERVICE BULLETIN 767-28-0106
Variable Number Group

VR051 - VR060 1

VR081 1

VR084 1

VR086 - VR089 1

VR106 - VR109 1

VR201 - VR211 1

VR251 1

VR256 - VR260 1

VR266 - VR273 1

VR401 1

VR421 - VR423 1

VR426 1

VR441 1

VR461 1

VR471 - VR472 1

VS051 - VS056 1

VS061 1

VS066 - VS070 1

VS073 - VS078 1

VS091 - VS104 1

VS111 - VS113 1

VS131 - VS133 1

VS136 - VS137 1

VS176 - VS177 1

VS186 - VS187 1

VS196 - VS203 1

VS206 - VS208 1

VS211 1

VS216 - VS217 1

VS231 1

VS246 - VS248 1

VS261 - VS263 1

VS266 - VS274 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

13 of 27

BOEING SERVICE BULLETIN 767-28-0106
Variable Number Group

VS291 - VS293 1

VS301 - VS303 1

VS306 - VS311 1

VS316 1

VS321 - VS324 1

VS331 - VS333 1

VS336 - VS337 1

VS366 - VS367 1

VS381 - VS382 1

VS391 - VS392 1

VS401 1

VS426 - VS428 1

VS466 - VS472 1

VS486 1

VS496 - VS497 1

VS506 - VS507 1

VS526 1

VS546 - VS549 1

VS701 - VS736 1

VS751 - VS759 1

VS821 - VS825 1

VS841 - VS844 1

VS861 1

VS881 - VS883 1

VS891 1

VS896 1

VS901 - VS912 1

VS916 1

VS921 - VS925 1

VS931 - VS933 1

VS941 1

VS951 - VS954 1

VS961 - VS964 1

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

14 of 27

BOEING SERVICE BULLETIN 767-28-0106
Variable Number Group

VT501 1

VT511 - VT513 1

VT521 - VT523 1

VT531 - VT533 1

VT541 - VT543 1

VV001 1

VW701 - VW721 1

VW851 1

2. Spares Affected

None.

B. Concurrent Requirements

None.

C. Reason

This service bulletin provides test procedures to make sure that the Engine Indication and Crew Alerting

System (EICAS) receives both, the LOW FUEL and the FUEL CONFIG discrete signals from the Fuel

Quantity Processor Unit (FQPU), and the Fuel Quantity Indicating System (FQIS), is functioning correctly.

If this service bulletin is not incorporated flight crews may be unaware of low fuel situations that can

lead to fuel exhaustion and extreme emergency measures.

A 757-200 operator reported that the Low Fuel Indicating System failed to alert the flight crew that the

fuel in Left Hand (LH) and Right Hand (RH) main tanks were depleted below the minimum 2,200 lbs

in either tank. The Low Fuel Threshold is 2,200 lbs of fuel for either Main Fuel Tank for both 757 and

767 airplanes. When the fuel in either LH or RH main tank is below 2,200 lbs, the EICAS should receive

both the LOW FUEL and FUEL CONFIG discrete signals from the FQPU in order for EICAS to display

the LOW FUEL caution message.

The Operator reported to Boeing that the airplane arrived at it’s destination with main tank fuel levels

below the Low Fuel Threshold. The next flight crew reported 8,000 lbs of fuel in the Center Wing Tank

(CWT), 1,800 lbs of fuel in the Right Hand Main Fuel Tank and 1,400 lbs of fuel in the Left Hand Main

Fuel tank.

Boeing determined this to be a safety issue for 767 airplanes due to the similarity of FQIS, EICAS and

LFDS Systems. Operators can expect to eliminate similar safety incidents by doing the interval tests

in accordance with this service bulletin.

The 767-400ER airplanes have Large Format Display System, LFDS, which replaces EICAS system,

interfaces with FQIS and has a different flight deck arangement from the 767-200, -300 and -300F

airplanes.

757767-SRP-280124 is related to this service bulletin.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

15 of 27

BOEING SERVICE BULLETIN 767-28-0106
D. Description

Test the Low Fuel Quantity Indicating System to make sure that the Low Fuel Indication and the Fuel

Configuration indication are functioning correctly.

Make sure the EICAS caution message "LOW FUEL" shows on the EICAS display and the "FUEL

CONFIG" light on the Pilots Overhead Panel (P5 Panel) comes "ON".

If the test fails troubleshoot for wiring faults, bent connector pins, or damaged equipment. Repair or

replace damaged wires or equipment.

The work in this service bulletin is done in the maintenance zone(s) given below.

Group 1:

Affected Maintenance Zones

Model Zone

767-200, 767-300, 767-300F 211, 212, 221, 222

Group 2:

Affected Maintenance Zones

Model Zone

767-400ER 211, 212, 221, 222

E. Compliance

The Federal Aviation Administration (FAA) will possibly release an Airworthiness Directive related to

this service bulletin. The Airworthiness Directive will make the compliance tasks and times given in this

service bulletin mandatory.

Boeing recommends that the Inspection/Interval Test given in this service bulletin be done every 100

flight hours.

F. Approval

This service bulletin was examined by the Federal Aviation Administration (FAA). The changes specified

in this service bulletin comply with the applicable regulations and are FAA approved, as well as European

Aviation Safety Agency (EASA)/Joint Aviation Authorities (JAA) approved for all EASA/JAA approved

airplanes listed in the service bulletin effectivity. This service bulletin and its approval were based on

the airplane in its original Boeing delivery configuration or as modified by other approved Boeing

changes.

If an airplane has a non-Boeing modification or repair that affects a component or system also affected

by this service bulletin, the operator is responsible for obtaining appropriate regulatory agency approval

before incorporating this service bulletin.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

16 of 27

BOEING SERVICE BULLETIN 767-28-0106
G. Manpower

The table below shows an estimate of the task hours necessary to do this for each . This estimate is

for direct labor only, done by an experienced crew. Adjust the estimate with operator task hour data if

necessary. The estimate does not include lost time. These are some examples of lost time:

• Time to adjust to the workplace

• Time to schedule the work

• Time to inspect the work

• Time to cure the materials

• Time to make the parts

• Time to find the tools.

Task Number of Persons Task Hours Elapsed Hours

Open Access 1 0.25 0.25

Test 1 0.50 0.50

Close Access 1 0.25 0.25

TOTAL FOR EACH AIRPLANE 1.00 1.00

H. Weight and Balance Changes

None.

I. Electrical Load Data

Not changed.

J. References

1. Existing Data

a. Boeing Service Related Problem (SRP) 757/767-SRP-28-0124

b. Standard Wiring Practices Manual (SWPM) 20-10-11, 20-10-12, 20-10-19

c. 767 Aircraft Maintenance Manual (AMM) 24-22-00

d. 767 Fault Isolation Manual (FIM) 28-41-00

e. 767 Wiring Diagram Manual (WDM) 28-41-13

2. Data supplied with this Service Bulletin

None.

3. Installation Drawings Used in the Preparation of this Service Bulletin

None.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

17 of 27

BOEING SERVICE BULLETIN 767-28-0106
K. Publications Affected

1. Publications:

None.

2. Damage Tolerance Based Structural Inspections:

Boeing has evaluated the repairs and/or changes in this service bulletin for effects on Fatigue

Critical Structure (FCS) and for changes to Damage Tolerance Inspections (DTI) required in the

Maintenance Program. This service bulletin does not affect FCS, therefore DTIs are not necessary.

L. Interchangeability and Intermixability of Parts

Accomplishment of this service bulletin does not affect interchangeability or intermixability of parts.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

18 of 27

BOEING SERVICE BULLETIN 767-28-0106
2. MATERIAL INFORMATION

A. Material - Price and Availability

None.

B. Industry Support Information

Boeing warranty remedies are not available for the Inspection/Interval Test given in this service bulletin.

C. Parts Necessary For Each Airplane

1. Kits/Parts

None.

2. Parts and Materials Supplied by the Operator

None.

3. Parts Modified and Reidentified

None.

4. Parts Removed and Not Replaced

None.

D. Parts Necessary to Change Spares

None.

E. Special Tooling - Price and Availability

None.

F. Special Tooling Necessary to do this Service Bulletin

No special tools or equipment are necessary to do the change in this service bulletin. But, maintenance

and overhaul tools in the manuals given in Paragraph 1.J., References, can be necessary. Examine

operator tool supply to make sure all necessary tools are available.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

19 of 27

BOEING SERVICE BULLETIN 767-28-0106
BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

20 of 27

BOEING SERVICE BULLETIN 767-28-0106

BLANK PAGE
3. ACCOMPLISHMENT INSTRUCTIONS

A. GENERAL INFORMATION

CAUTION: KEEP THE WORK AREA, WIRES AND ELECTRICAL BUNDLES CLEAN OF METAL

PARTICLES OR CONTAMINATION WHEN YOU USE TOOLS. UNWANTED MATERIAL,

METAL PARTICLES OR CONTAMINATION CAUGHT IN WIRE BUNDLES CAN CAUSE

DAMAGE TO THE BUNDLES. DAMAGED WIRE BUNDLES CAN CAUSE SPARKS OR

OTHER ELECTRICAL DAMAGE.

NOTE: 1. The instructions identified in Paragraph 3.B., Work Instructions, and the Figure(s)

give the recommended sequence of steps. The sequence of steps to do this service

bulletin can be changed.

2. Manual titles are referred to by acronyms. Refer to Paragraph 1.J., References, for

definition of the acronyms.

3. Obey all of the warnings and cautions given in the specified manual sections.

4. Refer to the SWPM 20-10-11 and SWPM 20-10-12 for the wire installation procedures,

and SWPM 20-10-19 for the wire separation requirements, as accepted procedures.

5. A Detailed Inspection is defined as: An intensive examination of a specific item,

installation, or assembly to detect damage, failure, or irregularity. Available lighting

is normally supplemented with a direct source of good lighting at an intensity deemed

appropriate. Inspection aids such as mirrors, magnifying lenses, etc. may be

necessary. Surface cleaning and elaborate procedures may be required.

6. A General Visual Inspection is defined as: A visual examination of an interior or

exterior area, installation or assembly to detect obvious damage, failure or irregularity.

This level of inspection is made from within touching distance unless otherwise

specified. A mirror may be necessary to enhance visual access to all exposed surfaces

in the inspection area. This level of inspection is made under normally available

lighting conditions such as daylight, hangar lighting, flashlight or drop-light and may

require removal or opening of access panels or doors. Stands, ladders or platforms

may be required to gain proximity to the area being checked.

7. These work instructions refer to procedures included in other Boeing documents.

When the words "refer to" are used and the operator has an accepted alternative

procedure, the accepted alternative procedure can be used. When the words "in

accordance with" are included in the instruction, the procedure in the Boeing document

must be used.

B. WORK INSTRUCTIONS

1. Group 1:

PART 1 - Test.

a. Supply electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure.

b. Make sure the following six EICAS circuit breakers are closed.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

21 of 27

BOEING SERVICE BULLETIN 767-28-0106
EICAS CIRCUIT BREAKERS, P11 PANEL

CIRCUIT NAME PANEL LOCATION

BREAKER

C4078 EICAS, L CMPTR P11-2 J2

C4079 EICAS, R CMPTR P11-5 J29

C4094 EICAS DISPLAY SELECT P11-5 J32

C4189 EICAS DISPLAY SWITCHING P11-5 J31

C4082 EICAS LOWER DISPLAY P11-5 J30

C4081 EICAS UPPER DSPL P11-2 J3

c. Do the Test in accordance with FIGURE 1.

NOTE: If the test fails, trouble shoot for wire faults, bent connector pins, or damaged

equipment. Refer to Fault isolation Manual 767 FIM 28-41-00 as an accepted

procedure, and to Wire Diagram Manual 767 WDM 28-41-13 for related wires.

d. Put the airplane back to a serviceable condition.

2. Group 2:

PART 2 - Test.

a. Supply electrical power. Refer to 767 AMM 24-22-00 as an accepted procedure.

b. Make sure the following ten LFDS circuit breakers are closed.

LFDS CIRCUIT BREAKERS, P11 PANEL

CIRCUIT NAME PANEL LOCATION

BREAKER

C1817 DISPLAY UNIT UPPER CENTER P11-1 A6

C1818 DISPLAY UNIT LOWER CENTER P11-2 H3

C1826 DISPLAY PROCESSING COMPUTER - LEFT P11-2 H5

C1825 DISPLAY PROCESSING COMPUTER - RIGHT P11-5 J31

C1824 DISPLAY PROCESSING COMPUTER - CENTER P11-1 A7

C1821 DISPLAY SELECT PANEL P11-5 J27

C1811 PANEL DATA CONCENTRATOR UNIT - LEFT P11-1 E3

C1812 PANEL DATA CONCENTRATOR UNIT - RIGHT P11-1 E4

C1823 DATA CONCENTRATOR UNIT - LEFT P11-1 D3

C1822 DATA CONCENTRATOR UNIT - RIGHT P11-5 J30

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

22 of 27

BOEING SERVICE BULLETIN 767-28-0106
c. Do the Test in accordance with FIGURE 2.

NOTE: If the test fails, trouble shoot for wire faults, bent connector pins, or damaged

equipment. Refer to Fault isolation Manual 767 FIM 28-41-00 as an accepted

procedure, and to Wire Diagram Manual 767 WDM 28-41-13 for related wires.

d. Put the airplane back to a serviceable condition.

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

23 of 27

BOEING SERVICE BULLETIN 767-28-0106
This Figure applies only to: Group 1.

FIGURE 1:

(SHEET 1 OF 2)

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

24 of 27

BOEING SERVICE BULLETIN 767-28-0106
Test the FUEL CONFIG Light and the LOW FUEL Message.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

CAUTION/CANCEL - - (a)

Button

1 Push

2 Push FUEL QTY Test Switch - - (b)

Locate FUEL CONFIG Light - - (c)

EICAS, LOW FUEL - - (d)

Caution Message

Locate

(a) Push the CAUTION Cancel button on the P1-3, Captain Instrument Panel, Right, to reset EICAS caution

and advisory messages.

(b) Put the FUEL QTY test switch in the FUEL QTY position and release. ( located on the (M10398) P61

Panel)

(c) Make sure the FUEL CONFIG light comes on. ( P5, Pilot's Overhead Panel )

(d) Make sure the LOW FUEL message shows. ( Upper EICAS Display )

FIGURE 1:

(SHEET 2 OF 2)

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

25 of 27

BOEING SERVICE BULLETIN 767-28-0106
This Figure applies only to: Group 2.

FIGURE 2:

(SHEET 1 OF 2)

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

26 of 27

BOEING SERVICE BULLETIN 767-28-0106
Test the FUEL CONFIG Light and the LOW FUEL Message for LFDS Airplanes.

STEP TASK NAME IDENTIFICATION QTY MORE DATA

1 Push CANC/RCL Button - - (a)

2 Push FUEL QTY Test Switch - - (b)

Locate FUEL CONFIG Light - - (c)

EICAS, LOW FUEL - - (d)

Caution Message

Locate

(a) Push the CANC/RCL button on the, Display Select Panel, P55, Center Glareshield, to reset crew alert

messages.

(b) Put the FUEL QTY test switch in the FUEL QTY position and release. ( located on the (M10398) P61

Panel )

(c) Make sure the FUEL CONFIG light comes on. ( P5, Pilot's Overhead Panel )

(d) Make sure the LOW FUEL message shows.( Upper EICAS Display )

NOTE: The Large Format Display System, (LFDS), replaces the EICAS system and interfaces with the FQIS

System on 767-400ER airplanes.

FIGURE 2:

(SHEET 2 OF 2)

BOEING PROPRIETARY -

Copyright © Unpublished Work - See page 1 for details.

Original Issue: August 25, 2010

767-28-0106

27 of 27

BOEING SERVICE BULLETIN 767-28-0106