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Commercial Airplanes 777 Service Bulletin ALERT Number: 777-34A0191 Original Issue: September 20, 2011 Revision 1: March 23, 2012 ATA System: 3433 SUBJECT: NAVIGATION - Radio Altimeter System - Radio Altimeter Transceiver Replacement 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.
9E991ECCN:
BOEING PROPRIETARY, CONFIDENTIAL, AND/OR TRADE SECRET Copyright © 2011 The Boeing Company Unpublished Work - All Rights Reserved Boeing claims copyright in each page of this document only to the extent that the page contains copyrightable subject matter.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BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.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: September 20, 2011 777-34A0191Revision 1: March 23, 2012 1 of 21
2.0
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 2 of 21 BOEING SERVICE BULLETIN 777-34A0191
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Table of Contents
Revision Transmittal Sheet5
Summary7
1. PLANNING INFORMATION ........................................ 1 1 A. Effectivity ............................................... 1 1
1. Airplanes ............................................ 1 1
2. Spares Affected ........................................ 1 2 B. Concurrent Requirements ...................................... 1 2 C. Reason ................................................ 1 2 D. Description .............................................. 1 3 E. Compliance .............................................. 1 3 F. Approval ............................................... 1 3 G. Manpower .............................................. 1 3 H. Weight and Balance Changes .................................... 1 4 I. Electrical Load Data ......................................... 1 4 J. References .............................................. 1 4
1. Existing Data .......................................... 1 4
2. Data supplied with this Service Bulletin ............................ 1 4
3. Installation Drawings Used in the Preparation of this Service Bulletin ............ 1 4 K. Publications Affected ........................................ 1 5 L. Interchangeability and Intermixability of Parts ........................... 1 5
2. MATERIAL INFORMATION ........................................ 1 7 A. Material - Price and Availability ................................... 1 7 B. Industry Support Information .................................... 1 7 C. Parts Necessary For Each Airplane ................................. 1 7
1. Kits/Parts ............................................ 1 7
2. Parts and Materials Supplied by the Operator ........................ 1 7
3. Parts Modified and Reidentified ................................ 1 7
4. Parts Removed and Not Replaced .............................. 1 7 D. Parts Necessary to Change Spares ................................. 1 7 E. Special Tooling - Price and Availability ............................... 1 8 F. Special Tooling Necessary to do this Service Bulletin ....................... 1 8
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 1 9 A. GENERAL INFORMATION ..................................... 1 9 B. WORK INSTRUCTIONS ....................................... 1 9 FIGURE 1: RADIO ALTIMETER TRANSCEIVER REPLACEMENT ................... 2 0
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 3 of 21 BOEING SERVICE BULLETIN 777-34A0191
ALERTALERT
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 4 of 21 BOEING SERVICE BULLETIN 777-34A0191
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Commercial Airplanes 777 Service Bulletin ALERT Revision Transmittal SheetNumber: 777-34A0191Original Issue: September 20, 2011 Revision 1: March 23, 2012 ATA System: 3433 SUBJECT: NAVIGATION - Radio Altimeter System - Radio Altimeter Transceiver Replacement This revision includes all pages of the service bulletin.
COMPLIANCE INFORMATION RELATED TO THIS REVISION No more work is necessary on the airplanes changed in accordance with the original issue of this service bulletin.
REASON FOR REVISION This revision is sent to add one airplane to the effectivity list of the original issue of this service bulletin.
These sections were changed:
1. In PLANNING INFORMATION, Paragraph 1.A.1., airplane WE091 was added to the effectivities.
Vertical lines are put on the left edge of each page, except in Paragraph 1.A., Effectivity, to show the location of important changes.
Pages with no vertical lines have no important changes.
REVISION HISTORY September 20, 2011Original Issue:
March 23, 2012Revision 1:
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 5 of 21
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 6 of 21 BOEING SERVICE BULLETIN 777-34A0191
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Commercial Airplanes 777 Service Bulletin ALERT SummaryNumber: 777-34A0191Original Issue: September 20, 2011 Revision 1: March 23, 2012 ATA System: 3433 SUBJECT: NAVIGATION - Radio Altimeter System - Radio Altimeter Transceiver Replacement
THIS BULLETIN 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 SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.
CONCURRENT REQUIREMENTS None.
BACKGROUND This service bulletin gives instructions to replace the existing Radio Altimeter (RA) Transceivers with the upgraded units. The upgraded Radio Altimeter Transceivers have improved antenna monitoring capabilities for detecting antenna deterioration caused by the environmental conditions or damage to the antenna during antenna alteration which can result in breaks in the coaxial cables or damage to the coax connector. If the changes in this service bulletin are not done, incorrect Radio Altimeter output may be observed on the Primary Flight Displays (PFD).
Some operators have reported inconsistent Radio Altimeter Transceiver outputs during the flight and on the ground. The antenna alteration at the antenna level can create micro cracks on the electrical grounding connection, damage the coax cables or the coax connector center pin contact. Any one of these damages to the antenna assembly can affect the Radio Altimeter system functionality.
Boeing Service Related Problem 777-SRP-34-0120 is related to this service bulletin.
Boeing Fleet Team Digest 777 FTD 34-10013 is related to this service bulletin.
This table is provided to operators for planning purposes only. Refer to the applicable sections for more information.
ReferenceAffectedPlanning Data Paragraph 1.A.2., Spares AffectedYesSpares Affected Paragraph 1.E., ComplianceNoAD Related Paragraph 1.H., Weight and Balance ChangesNoWeight and Balance Change Paragraph 1.I., Electrical Load DataNoElectrical Load Changed Paragraph 1.K., Publications AffectedYesPublications Affected
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 7 of 21
ReferenceAffectedPlanning Data Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew Operations Manual and/or FAA Approved Airplane Flight Manual) Paragraph 2.C.1., Kits/PartsNoKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator YesOperator Supplied Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION (PRR 62777-85S)
1. Gain access to the E5 rack in the forward cargo compartment.
2. Replace the Radio Altimeter (RA) Transceivers.
3. Do Installation Test.
EFFECTIVITY 777-200, 777-200LR, 777-300, 777-300ER, and 777F Airplane(s). Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s).
COMPLIANCE Boeing recommends that the changes given in this service bulletin be done within 24 months after the original issue date of this service bulletin.
INDUSTRY SUPPORT INFORMATION Boeing warranty remedies are not available for the configuration changes given in this service bulletin.
MANPOWER Elapsed HoursTotal Task HoursAirplanes
1.651.65All
MATERIAL INFORMATION Operator Supplied Parts/Materials.
Refer to Paragraph 2.A., Material - Price and Availability.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 8 of 21 BOEING SERVICE BULLETIN 777-34A0191
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BOEING SERVICE BULLETIN 777-34A0191
ALERT ALERT E5 RACK (FORWARD
CARGO COMPARTMENT)
REPLACE RADIO ALTIMETER (RA)
E TRANSCEIVERS (XCVR) RIGHT RA XCVR (E5-2) CENTER RA XCVR (E5-3) LEFT RA XCVR (E5-4) ^ FWD ELECTRONIC EQUIPMENT RACK, E5- 2095348
FORWARD CARGO COMPARTMENT Original Issue: September 20, 2011 Revision 1: March 23, 2012 777-34A0191
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 9 of 21
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 10 of 21 BOEING SERVICE BULLETIN 777-34A0191
ALERTALERT
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Commercial Airplanes 777 Service Bulletin ALERT Number: 777-34A0191 Original Issue: September 20, 2011 Revision 1: March 23, 2012 ATA System: 3433 SUBJECT: NAVIGATION - Radio Altimeter System - Radio Altimeter Transceiver Replacement
THIS BULLETIN 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 SERVICE BULLETIN TO THE NEW OPERATOR. IF APPLICABLE SPARES HAVE BEEN SOLD, SEND THIS SERVICE BULLETIN TO THE NEW OWNER.
1. PLANNING INFORMATION A. Effectivity
1. Airplanes This service bulletin is for the airplane(s) shown below. Refer to PRR 62777-85S for data about this change.
Refer to Service Bulletin Index D624W001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.
DESCRIPTIONCONFIGURATIONGROUP Replace existing Radio Altimeter Transceivers with 9599-607-19996 part number -1 Airplane Models:
777-200, 777-200LR, 777-300, 777-300ER, 777F GroupVariable Number 1WA196 - WA198 1WB101 - WB106 1WB161 - WB177 1WB306 - WB307 1WB631 - WB638
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Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 11 of 21
GroupVariable Number 1WB646 - WB649 1WC111 - WC120 1WC581 1WD046 - WD055 1WD581 - WD599 1WD606 - WD609 1WD621 - WD632 1WD671 - WD677 1WD846 - WD862 1WD921 - WD922 1WE091 1WF031 - WF032 1WF131
2. Spares Affected Examine your spares supply for the parts or components identified in Paragraph 2.C., Parts Necessary for Each Airplane. If any parts or components are found, refer to Paragraph 2.C. for the recommended use.
B. Concurrent Requirements None.
C. Reason This service bulletin gives instructions to replace the existing Radio Altimeter (RA) Transceivers with the upgraded units. The upgraded Radio Altimeter Transceivers have improved antenna monitoring capabilities for detecting antenna deterioration caused by the environmental conditions or damage to the antenna during antenna alteration which can result in breaks in the coaxial cables or damage to the coax connector. If the changes in this service bulletin are not done, incorrect Radio Altimeter output may be observed on the Primary Flight Displays (PFD).
Some operators have reported inconsistent Radio Altimeter Transceiver outputs during the flight and on the ground. The antenna alteration at the antenna level can create micro cracks on the electrical grounding connection, damage the coax cables or the coax connector center pin contact. Any one of these damages to the antenna assembly can affect the Radio Altimeter system functionality.
Boeing Service Related Problem 777-SRP-34-0120 is related to this service bulletin.
Boeing Fleet Team Digest 777 FTD 34-10013 is relate to this service bulletin.
BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: September 20, 2011 777-34A0191Revision 1: March 23, 2012 12 of 21 BOEING SERVICE BULLETIN 777-34A0191