Boeing ASB 767-24A0261: Revision 1, text

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Commercial Airplanes 767 Service Bulletin ALERT Number: 767-24A0261 Original Issue: May 19, 2021 Revision 1: August 17, 2022 ATA System: 2400 SUBJECT: ELECTRICAL POWER - Electrical Power - Electrical Bracket Installation EXPORT CONTROLLED - This technology or software is subject to the U.S. Export Administration Regulations (EAR), (15 C.F.R. Parts 730-774). No authorization from the U.S. Department of Commerce is required for export, re-export, in-country transfer, or access EXCEPT to country group E:1 or E:2 countries/persons per Supp.1 to Part 740 of the EAR.

9E991ECCN:

Treatment of this document and its content is governed by contract with Boeing. Rights to use this document are licensed on a per aircraft basis and such rights may not be transferable. For more information, contact The Boeing Company.

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, KC-46, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8, Poseidon and Boeing liveries 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.

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 1 of 23

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Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 2 of 23 BOEING SERVICE BULLETIN 767-24A0261

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Table of Contents

Revision Transmittal Sheet5

1. PLANNING INFORMATION7

A. Effectivity7

1. Airplanes7

2. Spares Affected8

B. Concurrent Requirements8

C. Reason8

D. Description9

E. Compliance9

F. Approval9

G. Manpower10

H. Weight and Balance Changes11

I. Electrical Load Data11

J. References11

1. Existing Data:11

2. Data Supplied with this Service Bulletin:11

3. Installation Drawings Used in the Preparation of this Service Bulletin:11

K. Publications Affected12

L. Interchangeability and Intermixability of Parts12

M. Software Accomplishment Summary12

2. MATERIAL INFORMATION13

A. Material - Price and Availability13

B. Industry Support Information13

C. Parts Necessary for Each Airplane13

1. Kits/Parts13

2. Parts and Materials Supplied by the Operator13

3. Parts Modified and Reidentified14

4. Parts Removed and Not Replaced14

D. Parts Necessary to Change Spares14

E. Special Tooling - Price and Availability14

F. Special Tooling Necessary to do this Service Bulletin14

3. ACCOMPLISHMENT INSTRUCTIONS15

A. GENERAL INFORMATION15

B. WORK INSTRUCTIONS16

FIGURE 1: MAIN EQUIPMENT CENTER - BETWEEN FLOOR BEAMS AT STA 303 AND STA 325 AT RBL

39 - ELECTRICAL BRACKET INSTALLATION [Group 2-3, Configuration 2]18

FIGURE 2: MAIN EQUIPMENT CENTER - BETWEEN FLOOR BEAMS AT STA 303 AND STA 325 AT RBL

39 - INSTALLATION OF EXISTING WIRE BUNDLES [Group 2, Configuration 2]20

FIGURE 3: MAIN EQUIPMENT CENTER - BETWEEN FLOOR BEAMS AT STA 303 AND STA 325 AT RBL

39 - INSTALLATION OF EXISTING WIRE BUNDLES [Group 3, Configuration 2]22

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 3 of 23 BOEING SERVICE BULLETIN 767-24A0261

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Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 4 of 23 BOEING SERVICE BULLETIN 767-24A0261

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Commercial Airplanes 767 Service Bulletin ALERT Revision Transmittal SheetNumber: 767-24A0261Original Issue: May 19, 2021 Revision 1: August 17, 2022 ATA System: 2400 SUBJECT: ELECTRICAL POWER - Electrical Power - Electrical Bracket Installation This revision includes all pages of the service bulletin.

COMPLIANCE INFORMATION RELATED TO THIS REVISION 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.

Effects of this Revision on airplanes on which the Original Issue was previously done:

None.

REASON FOR REVISION This revision is sent to release this service bulletin as an ALERT service bulletin with a Boeing recommended compliance time.

These sections were changed:

1. In Paragraph 1.A., Effectivity, added Group 2 and Group 3 configurations.

2. In Paragraph 1.C., Reason, added information.

3. In Paragraph 1.D., Description, revised paragraph.

4. In Paragraph 1.E., Compliance, added Airworthiness Directive (AD) and compliance time.

5. In Paragraph 1.J., References, updated references.

6. In Paragraph 3.A., General Information, revised notes.

7. In Paragraph 3.B., Work Instructions, revised work instructions.

8. Figure 2 and Figure 3, revised illustrations and footnotes.

Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity and format changes, to show the location of all content changes.

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 5 of 23

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Pages with no vertical lines have no changes.

REVISION HISTORY May 19, 2021Original Issue:

August 17, 2022Revision 1:

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 6 of 23 BOEING SERVICE BULLETIN 767-24A0261

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THIS DOCUMENT IS SENT TO THE OPERATORS OF RECORD OF THE AIRPLANES SHOWN IN PARAGRAPH 1.A., EFFECTIVITY. IF AN AIRPLANE HAS BEEN LEASED OR SOLD, SEND THIS DOCUMENT TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS DOCUMENT TO THE NEW OWNER.

1. PLANNING INFORMATION A. Effectivity

1. Airplanes This bulletin is applicable to 767-300 Airplane(s), line number(s) 269, 285, 379, 432, 434, 438, 463, 484, 533, 556, 568, 570, 586-587, 593, 607, 615, 623, 625, 635, 645, 649-650, 662, 681, 691, 710, 713, 743, 775, 877, 905, 911, 921, 944-946, 949-950 in 3 Group(s). Where the effectivity is presented with hyphens between line numbers, the airplane applicability means "through" and "inclusive", e.g. line numbers 1-9 means line numbers 1 through 9 inclusive.

This service bulletin is for the airplane(s) shown below. Refer to Master Change 2400MK6040 for data about this change.

Refer to Service Bulletin Index D624T001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.

DESCRIPTIONCONFIGURATIONGROUP Airplanes that had Electrical Bracket installed by BCS message number SCO-ANA-20-0080 or SCO-ANA-20-0086. No action is required.

-1 Airplanes with missing Electrical Bracket and a different wiring configuration from Group 3.

-2 Airplanes that have accomplished the original issue of this service bulletin.

1 Airplanes that have not accomplished the original issue of this service bulletin.

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 7 of 23

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DESCRIPTIONCONFIGURATIONGROUP Airplanes with missing Electrical Bracket and a different wiring configuration from Group 2.

-3 Airplanes that have accomplished the original issue of this service bulletin.

1 Airplanes that have not accomplished the original issue of this service bulletin.

2 Airplane Models:

767-300 GroupVariable Number 2VL703 3VL751 3VL754 2VL806 - VL807 2VL891 3VL895 3VL897 3VL914 2VN096 - VN098 GroupVariable Number 2VN191 - VN194 1VN195 2VN196 1VN197 3VN638 2VN791 - VN792 2VN921 3VN952 2VN970 GroupVariable Number 3VS051 2VS186 - VS187 3VS323 3VS366 3VS704 - VS705 3VS709 2VS721 3VS902 - VS904 3VS911 - VS912

2. Spares Affected None.

B. Concurrent Requirements None.

C. Reason This service bulletin and a kit of parts were prepared to install an Electrical Bracket in the Main Equipment Center and reinstall existing wire bundles to meet wire separation requirements. Incorporation of this service bulletin will prevent the possibility of an electrical short and potential loss of several functions essential for safe flight.

Boeing SB 767-24-0261 was released in May 2021 for the purpose of installing a missing electrical bracket on specific BCF converted freighters. After initial release, it was discovered that the missing electrical bracket had been determined to be safety related, and that this service bulletin should have been released as an ALERT service bulletin with a Boeing recommended compliance time.

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 8 of 23 BOEING SERVICE BULLETIN 767-24A0261

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NOTE: The accomplishment of this SB installs a missing electrical bracket, which is required in order to accomplish 767-28-0122.

Revision 1 is sent to release this service bulletin as an ALERT service bulletin with a Boeing recommended compliance time.

D. Description Group 1; Group 2-3, Configuration 1:

No work is required.

Group 2-3, Configuration 2:

In the Main Equipment Center, install the Electrical Bracket and reinstall the existing Wire Bundles.

No more work is necessary on the airplane(s) changed in accordance with Original Issue version of this service bulletin.

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

Affected Maintenance Zones ZoneModel 119767-300 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.

Group 2-3, Configuration 2:

Boeing recommends that the change given in this service bulletin be done within 24 months after the Revision 1 date of this service bulletin.

Group 1; Group 2-3, Configuration 1:

No action is required.

F. Approval The following paragraph is applicable to the airplanes: VL703, VL754, VL806, VL807, VL891, VL895, VL897, VN096, VN097, VN098, VN191, VN192, VN193, VN194, VN195, VN196, VN197, VN638, VN952, VN970, VS051, VS186, VS187, VS323, VS704, VS705, VS709, VS721, VS902, VS903, VS904, VS911, VS912 – 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 for the 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.

The following paragraph is applicable to the airplanes: VL751, VL914, VN791, VN792, VN921, VS366.

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 9 of 23 BOEING SERVICE BULLETIN 767-24A0261

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– 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 Union 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.

G. Manpower The table below shows an estimate of the task hours necessary to do this change for each airplane.

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 Group 1; Group 2-3, Configuration 1:

None.

Group 2, Configuration 2:

Elapsed HoursTask HoursNumber of PersonsTask

0.500.501Open Access

0.500.501FIGURE 1

1.001.001FIGURE 2

0.500.501Close Access

2.502.50TOTAL FOR EACH AIRPLANE Group 3, Configuration 2:

Elapsed HoursTask HoursNumber of PersonsTask

0.500.501Open Access

0.500.501FIGURE 1

1.001.001FIGURE 3

0.500.501Close Access

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H. Weight and Balance Changes Group 1; Group 2-3, Configuration 1:

Change in Moment (Pound-Inches) Change in Weight (Pounds)Airplane +0.0+0.0767-300 Group 2, Configuration 2:

Change in Moment (Pound-Inches) Change in Weight (Pounds)Airplane +60.0+0.3767-300 Group 3, Configuration 2:

Change in Moment (Pound-Inches) Change in Weight (Pounds)Airplane +61.9+0.3767-300 I. Electrical Load Data Not changed.

J. References

1. Existing Data:

a. Engineering Change Memo MC 2400MK6040

b. Boeing Service Bulletin 767-28-0122

c. Service Bulletin Index D624T001

d. Standard Overhaul Practices Manual (SOPM) 20-50-01

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

f. 767 Aircraft Maintenance Manual (AMM) 06-41-00, 24-22-00

2. Data Supplied with this Service Bulletin:

None.

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

None.

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 11 of 23 BOEING SERVICE BULLETIN 767-24A0261

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K. Publications Affected

1. Publications:

None.

2. Damage Tolerance Based Structural Inspections:

Boeing has evaluated the repairs 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.

M. Software Accomplishment Summary Not affected.

Original Issue: May 19, 2021 767-24A0261Revision 1: August 17, 2022 12 of 23 BOEING SERVICE BULLETIN 767-24A0261

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