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Commercial Airplanes 777 Service Bulletin ALERT Number: 777-34A0192 Original Issue: December 14, 2012 ATA System: 3433 SUBJECT: NAVIGATION - Radio Altimeter System - Low Range Radio Altimeter Antenna Replacement Export of this technology is controlled under the United States Export Administration Regulations (EAR) (15 CFR 300-774). 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 © 2012 Boeing.
Unpublished Work. All Rights Reserved.
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, KDC-10, MD-10, MD-11, MD-80, MD-88, MD-90, P-8A, 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. BOEING is a trademark of Boeing Management Company.
Original Issue: December 14, 2012 777-34A0192 1 of 24
2.0
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 2 of 24 BOEING SERVICE BULLETIN 777-34A0192
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Table of Contents
Summary5
1. PLANNING INFORMATION9
A. Effectivity9
1. Airplanes9
2. Spares Affected ........................................ 1 0 B. Concurrent Requirements ...................................... 1 0 C. Reason ................................................ 1 0 D. Description .............................................. 1 1 E. Compliance .............................................. 1 1 F. Approval ............................................... 1 1 G. Manpower .............................................. 1 2 H. Weight and Balance Changes .................................... 1 2 I. Electrical Load Data ......................................... 1 2 J. References .............................................. 1 2
1. Existing Data: ......................................... 1 2
2. Data Supplied with this Service Bulletin: ........................... 1 2
3. Installation Drawings Used in the Preparation of this Service Bulletin: ........... 1 3 K. Publications Affected ........................................ 1 3 L. Interchangeability and Intermixability of Parts ........................... 1 3 M. Software Accomplishment Summary ................................ 1 3
2. MATERIAL INFORMATION ........................................ 1 5 A. Material - Price and Availability ................................... 1 5 B. Industry Support Information .................................... 1 5 C. Parts Necessary for Each Airplane ................................. 1 5
1. Kits/Parts ............................................ 1 5
2. Parts and Materials Supplied by the Operator ........................ 1 6
3. Parts Modified and Reidentified ................................ 1 6
4. Parts Removed and Not Replaced .............................. 1 6 D. Parts Necessary to Change Spares ................................. 1 6 E. Special Tooling - Price and Availability ............................... 1 6 F. Special Tooling Necessary to do this Service Bulletin ....................... 1 6
3. ACCOMPLISHMENT INSTRUCTIONS .................................. 1 7 A. GENERAL INFORMATION ..................................... 1 7 B. WORK INSTRUCTIONS ....................................... 1 7 FIGURE 1: STA 623.5 - LOW RANGE RADIO ALTIMETER TRANSMIT ANTENNAS - REPLACEMENT .................................................. 1 9 FIGURE 2: STA 665.5 - LOW RANGE RADIO ALTIMETER RECEIVE ANTENNAS - REPLACEMENT . 22 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 3 of 24 BOEING SERVICE BULLETIN 777-34A0192
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Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 4 of 24 BOEING SERVICE BULLETIN 777-34A0192
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Commercial Airplanes 777 Service Bulletin ALERT SummaryNumber: 777-34A0192Original Issue: December 14, 2012 ATA System: 3433 SUBJECT: NAVIGATION - Radio Altimeter System - Low Range Radio Altimeter Antenna 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 six existing Low Range Radio Altimeter (LRRA) antennas with new improved antennas for airplanes equipped with Thales Radio Altimeter Transceivers. If this service bulletin is not done, the radio altimeter data reported by the LRRA antennas may not meet the predicted reliability and data integrity requirements, which can result in unsafe flight condition.
Operators have reported erratic LRRA operation while the airplane is airborne even though operation is normal when the airplane is on the ground. The LRRA events were intermittent and have not been duplicated on the ground. The symptoms can include the following:
– Large differences between captain's and first officer's radio altitudes or a negative altitude in air – "NO LAND 3" or "NO AUTOLAND" Engine Indication and Crew Alerting System (EICAS) message – Autopilot disconnect, inability to engage Autopilot, or Flight Directors bias-out-of view – Autothrottle disconnect, Autothrottle retard, or inability to engage Autothrottle into SPD (Speed) mode – Unexpected Configuration Warnings after takeoff, during approach, or during go-around – Missing or inappropriate aural height callouts – Unavailability of auto speedbrake via "AUTO SPEEDBRAKE" EICAS message – Nuisance or missing Ground Proximity Warning System (GPWS) warnings – Electronic Engine Control (EEC) indicating ground mode and engine going to ground idle – Inability to engage Lateral Navigation (LNAV) Accomplishment of this service bulletin will improve the reliability of the radio altimeter data reported by the LRRA system.
Boeing Service Related Problem (SRP) 777-SRP-34-0120 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) 777 FTD 34-10013 is related to this service bulletin.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 5 of 24
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., Compliance and Paragraph
1.F., Approval NoAD 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 Paragraph 1.K., Publications AffectedNoAirplane Flight Operations Affected (Flight Crew Operations Manual and/or FAA Approved Airplane Flight Manual) Paragraph 2.C.1., Kits/PartsYesKits/Parts Required Paragraph 2.C.2., Parts and Materials Supplied by the Operator NoOperator Supplied Material Paragraph 2.F., Special Tooling Necessary to do this Service Bulletin NoSpecial Tooling Required ACTION (PRR 62777-85S) Get access to the area below the forward cargo compartment. At STA 623.5 and STA 665.5, replace the six existing LRRA antennas with new antennas. Do the system test of the Radio Altimeter System.
EFFECTIVITY 777-200/200LR/300/300ER, 777F Airplane(s). Refer to Paragraph 1.A.1., Airplanes, for the list of affected airplane(s).
COMPLIANCE Boeing recommends that the change given in this service bulletin be done within 36 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
6.306.30Group 1
MATERIAL INFORMATION Boeing Supplied Kits/Parts.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 6 of 24 BOEING SERVICE BULLETIN 777-34A0192
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BOEING SERVICE BULLETIN 777-34A0192
ALERT ALERT Refer to Paragraph 2.A., Material - Price and Availability.
LRRA TRANSMIT
ANTENNAS (LEFT,
CENTER, RIGHT) (STA 623.5)
REPLACE THE SIX EXISTING
LOW RANGE RADIO ALTIMETER (LRRA) ANTENNAS WITH NEW ANTENNAS.
LRRA RECEIVE
ANTENNAS (LEFT, CENTER, RIGHT) (STA 665.5) 2189576 Original Issue: December 14, 2012 Export Controlled ECCN: 9E991 - BOEING 777-34A0192 PROPRIETARY - Copyright © Unpublished Work - See page 1 for details. 7 of 24
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 8 of 24 BOEING SERVICE BULLETIN 777-34A0192
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Commercial Airplanes 777 Service Bulletin ALERT Number: 777-34A0192 Original Issue: December 14, 2012 ATA System: 3433 SUBJECT: NAVIGATION - Radio Altimeter System - Low Range Radio Altimeter Antenna 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 Refer to Service Bulletin Index D624W001 Part 3 for Airplane Variable Number, Line Number, and Serial Number data.
This service bulletin is for the airplane(s) shown below. An equivalent change is on subsequent production airplanes. Refer to PRR 62777-85S for data about this change.
DESCRIPTIONCONFIGURATIONGROUP Airplanes equipped with Thales Radio Altimeter Transceivers and with the LRRA antennas part number S67-2002-18 installed.
-1 Airplane Models:
777-200, 777-200LR, 777-300, 777-300ER, 777F GroupVariable Number 1WA196 - WA198 1WB101 - WB106 1WB161 - WB177 1WB306 - WB307 1WB631 - WB638 Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 9 of 24
GroupVariable Number 1WB646 - WB649 1WC111 - WC120 1WC581 1WC586 1WD046 - WD055 1WD581 - WD599 1WD606 - WD609 1WD621 - WD632 1WD671 - WD677 1WD846 - WD867 1WD921 - WD923 1WE091 - WE093 1WE186 - WE204 1WE261 1WF031 - WF035 1WF131
2. Spares Affected Examine your spares supply for the parts or components identified below. If any parts or components are found, refer to Paragraph 2.C.1., Kits/Parts for the recommended action.
Part Number S67-2002-18 B. Concurrent Requirements None.
C. Reason This service bulletin gives instructions to replace the six existing Low Range Radio Altimeter (LRRA) antennas with new improved antennas for airplanes equipped with Thales Radio Altimeter Transceivers.
If this service bulletin is not done, the radio altimeter data reported by the LRRA antennas may not meet the predicted reliability and data integrity requirements, which can result in unsafe flight condition.
Operators have reported erratic LRRA operation while the airplane is airborne even though operation is normal when the airplane is on the ground. The LRRA events were intermittent and have not been duplicated on the ground. The symptoms can include the following:
– Large differences between captain's and first officer's radio altitudes or a negative altitude in air Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 10 of 24 BOEING SERVICE BULLETIN 777-34A0192
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– "NO LAND 3" or "NO AUTOLAND" Engine Indication and Crew Alerting System (EICAS) message – Autopilot disconnect, inability to engage Autopilot, or Flight Directors bias-out-of view – Autothrottle disconnect, Autothrottle retard, or inability to engage Autothrottle into SPD (Speed) mode – Unexpected Configuration Warnings after takeoff, during approach, or during go-around – Missing or inappropriate aural height callouts – Unavailability of auto speedbrake via "AUTO SPEEDBRAKE" EICAS message – Nuisance or missing Ground Proximity Warning System (GPWS) warnings – Electronic Engine Control (EEC) indicating ground mode and engine going to ground idle – Inability to engage Lateral Navigation (LNAV) Accomplishment of this service bulletin will improve the reliability of the radio altimeter data reported by the LRRA system.
Boeing Service Related Problem (SRP) 777-SRP-34-0120 is related to this service bulletin.
Boeing Fleet Team Digest (FTD) 777 FTD 34-10013 is related to this service bulletin.
D. Description Get access to the area below the forward cargo compartment. At STA 623.5 and STA 665.5, replace the six existing LRRA antennas with new antennas. Do the system test of the Radio Altimeter System.
The work in this service bulletin is done in the maintenance zone(s) given below.
Affected Maintenance Zones ZoneModel 123, 124, 211, 212777-200, 777-200LR, 777-300, 777-300ER, 777F E. Compliance Boeing recommends that the change given in this service bulletin be done within 36 months after the original issue date of this service bulletin.
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.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 11 of 24 BOEING SERVICE BULLETIN 777-34A0192
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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.
Elapsed HoursTask HoursNumber of PersonsTask
0.250.251Open Access
2.402.401FIGURE 1
2.402.401FIGURE 2
0.250.251Close Access
1.001.001Test
6.306.30TOTAL FOR EACH AIRPLANE H. Weight and Balance Changes None.
I. Electrical Load Data Not changed.
J. References
1. Existing Data:
a. Engineering Change Memo PRR 62777-85S
b. Boeing Service Related Problem (SRP) 777-SRP-34-0120
c. Service Bulletin Index D624W001
d. 777 Aircraft Maintenance Manual (AMM) 34-33-00, 34-33-02
e. 777 Fleet Team Digest (FTD) 34-10013
2. Data Supplied with this Service Bulletin:
None.
Export Controlled ECCN: 9E991 - BOEING PROPRIETARY - Copyright © Unpublished Work - See page 1 for details.
Original Issue: December 14, 2012 777-34A0192 12 of 24 BOEING SERVICE BULLETIN 777-34A0192