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Discard the Basic Issue of this Service Bulletin dated Sep 28/2020 and replace in its entirety with this Revision 01.
This revision has no effect for aircraft on which the Basic Issue of this Service Bulletin was done thus no other action is necessary. Do not sign the log book if you have not done this revision. Keep the previous log book entry. You may make an entry as "Not Applicable" for this revision.
This revision is issued to:
1. Add, in Paragraph 1, a new NOTE (7).
2. Revise, in Paragraph 1.C. and 1.K., to add hoses details for the step on Appendix 1.
3. Deleted, in Paragraph 1.F., a NOTE for the labour hour calculation.
4. Added, in Paragraph 1.F., a new NOTE.
5. Revised, in Paragraph 1.F., restructured labour hour policy for PART B and PART C.
6. Revised, in Paragraph 1.F., labour hour no cost requirement for PART C from Aircraft Completion STC issuance to the Service Bulletin release date.
7. Deleted, in Paragraph 1.G., parts purchase order statement.
8. Add, in Paragraph 1.K., Advisory Wire number.
9. Revise, in Paragraph 2.B.(1)., (2) and (3)., to add green fitting hoses to the statement.
10.Deleted, in Paragraph 2.B.2(f)., a Note.
SERVICE BULLETIN MODEL BD−700−1A10 (BD−700) 700−35−6005 Page 1 of 2 REVISION TRANSMITTAL SHEETService Bulletin No.
700−35−6005 Date of Basic Issue Sep 28/2020 Revision No. 01 Dated Feb 12/2021
11.Revised, in Paragraph 2.B.5. and 5.(c)., to add in the third crew (LHS enclosure) inspection location.
12.Add, in Paragraph 2.B.5.(c)., a new NOTE.
13.Revised, in Paragraph 2.B.6., to add in the third crew (LHS enclosure) inspection location.
14.Add, in Appendix 1 − Record Table, a new NOTES.
15.Make miscellaneous minor changes, as necessary, with no change of context.
MODEL BD−700−1A10 (BD−700) 700−35−6005 Page 2 of 2
MODIFICATION – OXYGEN SUPPLY SYSTEM –
FLEXIBLE OXYGEN HOSE REPLACEMENT The information below is provided for your reference. For full details, including labor and part coverage, please see corresponding paragraph contained within this bulletin.
RECOMMENDED
SPECIFIED TIME COMPLIANCE
COMPLIANCE TIME Refer to Paragraph 1.D.
EFFECTIVITY: Refer to Paragraph 1.A.
MANPOWER: Refer to Paragraph 1.F.
CONTINUED AIRWORTHINESS (CAW)
FLEET CAMPAIGN YES NO TLMC, CH 5 AFFECTED NOYES KITS and/or PARTS YES NO
TOOLING/GSE YES NO PLANNING INFORMATION: See important information at the start of Paragraph 1. YES NO
DEDICATED SCHEDULE NOYES PREREQUISITE SERVICE BULLETINS: N/A NOTE: This Service Bulletin may be subject to an Airworthiness Directive which will make it necessary to implement this Service Bulletin.
To place an order for parts or kits, please call Bombardier Aviation Parts Services at:
514−855−2999 or 1−866−538−1247
SERVICE BULLETIN SUMMARY my.businessaircraft.bombardier.com MODEL BD−700−1A10 (BD−700) ATA 35−11 OXYGEN Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 1 of 1 This Service Bulletin is available at:
MODIFICATION – OXYGEN SUPPLY SYSTEM –
FLEXIBLE OXYGEN HOSE REPLACEMENT
1. PLANNING INFORMATION NOTES:1 . Before you do this Service Bulletin, examine all STC, STA or equivalent action changes to make sure that this Service Bulletin can be completed.
2. Due to different aircraft configurations, operators must first inspect their existing oxygen hose installation prior to placing an order with Parts Services.
3. Bombardier Aviation recommends to replace all existing O2C20T1 hoses at the earliest opportunity.
Operators that cannot do the replacement at inspection time must repeat the pressure and leak tests in PART B until all the O2C20T1 hoses are replaced, as described in TCCA Airworthiness Directive.
4. Aircraft less than five years must repeat PART B every 30 months until all O2C20T1 hoses are removed and replaced.
5. Aircraft five years and over must repeat PART B every 15 months until all O2C20T1 hoses are removed and replaced.
6. All O2C20T1 series hoses must be replaced within 10 years of Aircraft Completion STC issuance.
7. All O2C20T1 series hoses in the flight compartment and the third crew (LHS enclosure) must be replaced within six (6) months of this Service Bulletin release date (Basic Issue).
SERVICE BULLETIN my.businessaircraft.bombardier.com MODEL BD−700−1A10 (BD−700) ATA 35−11 OXYGEN Refer to applicable governmental agency regulations and requirements and make sure that the work described in this Service Bulletin is performed in compliance with manufacturer’s recommendations and/or acceptable industry standards.
This document is proprietary to Bombardier Inc. and/or its affiliates and may not be reproduced or copied in any form or by any means without the prior written consent of Bombardier Inc. and/or its affiliates.
2020−2021 Bombardier Inc. All rights reserved Learjet, Challenger, Global, are registered trademarks of Bombardier Inc. or its subsidiaries.
Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 1 of 26 This Service Bulletin is available at:
A. Effectivity BD−700−1A10 aircraft, Serial No. 9381, 9432 to 9491, 9496 to 9505, 9507 to 9515, 9518 to 9525, 9527 to 9619, 9622 to 9654, 9657 to 9673, 9677, 9680 to 9684, 9686 to 9712, 9716 to 9742, 9744 to 9785, 9788 to 9853, 9856 to 9867, 9870, 9873 to 9878.
NOTE: The instructions given in this Service Bulletin are only applicable to the systems and parts installed at the time of delivery of the aircraft or as changed by Bombardier Aviation Service Bulletin(s).
B. Reason
1. Condition:
After the deployment functional test of the oxygen masks at a scheduled maintenance, Bombardier Service Center reported that four hoses used for the passenger oxygen were found damaged.
2. Evidence:
After investigation, it was found that over time, the O2C20T1 series hoses may have leak points in them through structural cracks or breaks, and may become rigid or brittle at some areas.
3. Objective/Benefit:
The intent of this Service Bulletin is to remove and replace all installed O2C20T1 series flexible oxygen hoses, with 3891X series hoses.
Engineering evaluation has concluded that 3891X series flexible oxygen hoses, which are manufactured from different materials, have shown no sign of deterioration due to age or other environmental factors.
C. Description This Service Bulletin gives instructions in PART A to:
− Inspect the hose assembly installations located in the crew rest PSU, the cabin PSUs, the RHS dado (therapeutic oxygen) and the AFT flexible transitions, − Inspect the hose assembly installations located behind the FWD lavatory headliner, the entrance area headliner (jumpseat, entrance) and the FWD flexible transitions, − Inspect the hose assembly installations located in the flight compartment and the third crew (LHS enclosure), − Fill out Appendix 1 with the affected O2C20T1 series flexible oxygen hoses part numbers found installed, and − Order the replacement parts as required and per aircraft configuration.
This Service Bulletin gives instructions in PART B to:
− Do the periodical testing, until full replacement of all O2C20T1 series hoses.
MODEL BD−700−1A10 (BD−700) Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 2 of 26
This Service Bulletin gives instructions in PART C to:
− Remove the O2C20T1 series hoses, and − Install the 3891X series hoses as per Figure 2.
After PART C, this Service Bulletin gives instructions to:
− Do the necessary tests of the oxygen system.
D. Compliance Recommended within six months from this Service Bulletin release date (Basic Issue) for PART A and PART B.
Recommended within 10 years from Aircraft Completion STC issuance for PART C.
NOTES: 1. Bombardier Aviation recommends that this Service Bulletin be done at the operator’s earliest convenience, unless otherwise directed by the airworthiness authority of the operator.
2. If it is not possible to complete all the instructions in this Service Bulletin because of the aircraft configuration, submit an SRPSA for analysis and to get an approved disposition to complete this Service Bulletin.
E. Approval The technical content of this Service Bulletin has been approved under the authority of TC STC number SA12−16, FAA STC number ST03088NY, EASA STC number 10042314.
F. Manpower NOTES: 1. The man−hours given are to help you schedule the tasks given in this Service Bulletin. The man−hours are for direct labor performed by an experienced crew and do not include the time for familiarization, planning, aircraft preparation in hangar such as towing and positioning of scaffolds, repainting, supervision and inspection.
For more information related to the manpower, refer to SB 700−00−6002.
2. This Service Bulletin may require consumable materials that have specific curing times (refer to Paragraph 3). The accumulated curing time is not included in the man−hours and should be considered for planning purposes before you schedule this Service Bulletin.
MODEL BD−700−1A10 (BD−700) Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 3 of 26
5 man−hours are necessary to do PART A of this modification.
NOTE:
− 5 hours are required to get access for a visual of the hose fittings.
There is no need to remove completely the furniture to get access.
− It is recommended to do the replacement Part C during the same downtime as the inspection in order to save removal/installation time.
3 man−hours are necessary to do PART B of this modification.
9 man−hours are necessary to do PART C of this modification.
The labor required to do PART A of this Service Bulletin is at no cost if:
− the work is done during new aircraft warranty period, and − the work is done at Bombardier Business Aviation Services (BBAS) or Authorized Service Facilities (ASF), and − this Service Bulletin is scheduled in less than 6 months from its release date (Basic Issue).
Bombardier Aviation does not pay for the labor to do PART B of this Service Bulletin.
The labor required to do PART C of this Service Bulletin is at no cost if:
− the work is done during new aircraft warranty period, and − the work is done at Bombardier Business Aviation Services (BBAS) or Authorized Service Facilities (ASF), and − this Service Bulletin is scheduled in less than 24 months from the Service Bulletin release date (Basic issue).
G. Material − Cost and Availability No kit is necessary to do this modification. For material data, refer to Paragraph 3.C.
The parts in Paragraph 3.B. are necessary to do this modification.
The parts are available at no cost if:
− the parts are ordered in less than four (4) years from Aircraft Completion STC issuance, and − a no−charge purchase order is sent to Bombardier Aviation in less than 30 months, from this Service Bulletin release date (Basic Issue).
During or after the above free period, Smart Parts does not pay for the parts.
H. Tooling The equipment and tools listed below are necessary to do this modification:
MODEL BD−700−1A10 (BD−700) Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 4 of 26
GSE REFERENCE NO. PART NO. DESCRIPTION 12X−20−02 − Nitrogen Service Cart 20X−10−01 S4933959−501 Tag, Circuit Breaker 35X−10−01 G700−351001−29 Test Kit − Crew OxygenSystem Commercially Available − Electrical Outlet Tester Commercially Available − Oxygen Pressure Test Gauge (OPTG) with a Resolution of 2 psi (13.79 kPa) Minimum Commercially Available − Tag, DO NOT ACTIVATE Commercially Available − Wrench, Torque 100 to 125 lbfin (11.30 to 14.12 Nm) NOTES: 1. Refer to the Global 6000 Illustrated Tool and Equipment Manual (ITEM) to make sure that you use the correct equipment configuration.
2. Refer to the Liability Statement in the ITEM for the G6000 for acceptable GSE equivalents.
3. Refer to the Pressure task applicable to your aircraft in IFCA BAS67058081 (attached) for the requirement of the Nitrogen service cart or not.
4. This list is provided for quick reference. In case of discrepancy between this list and the tools called in the SPM, WM, Chapter 20, then the tools called in the SPM, WM prevail. Other approved alternative tools are acceptable and can also be used.
I. Weight and Balance No change.
J. Electrical Load Data No change.
K. References − TCCA Airworthiness Directive, (pending).
− Advisory Wire, AW700−35−0794.
− Bombardier Instructions for Continued Airworthiness (IFCA), BAS67058081 (attached).
MODEL BD−700−1A10 (BD−700) Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 5 of 26
− Bombardier Aviation, Kit Drawing BAS67638098, Rev. A.
− Global 6000 BD−700 Aircraft Maintenance Manual (AMM), Chapters 6, 12, 24, 25, 35 and 52.
− Global 6000 BD−700 Illustrated Tool and Equipment Manual (ITEM), Chapters 20 and 35.
− Bombardier Aviation, Standard Practices Manual (SPM), Chapters 20 and 51.
− Supplemental Maintenance Manual (SMM), Chapters 24, 25 and 35.
− Appendix 1 − Record Table (attached) for O2C20T1 series flexible oxygen hoses only (green fitting hoses).
L. Other Publications Affected None.
M. Equivalent Service Bulletins − For the Global Express and Global Express XRS BD−700−1A10 aircraft, use SB 700−35−015.
− For the Global 5000 BD−700−1A11 aircraft, use SB 700−1A11−35−014.
− For the Global 5000 BD−700−1A11 Featuring Global Vision Flight Deck aircraft, use SB 700−35−5005.
− For the Global 6500 BD−700−1A10 aircraft, use SB 700−35−6501.
2. ACCOMPLISHMENT INSTRUCTIONS NOTES: 1. All TASKs given in the procedures that follow are from the Global 6000 BD−700−1A10 Aircraft Maintenance Manual (AMM) unless otherwise specified.
2. All references made to zones, access panels and/or doors, are from the Global 6000 BD−700−1A10 Aircraft Maintenance Manual (AMM), Chapter 6.
A. Aircraft Setup NOTE: The steps in the Aircraft Setup section of this Service Bulletin are recommended steps. The steps give a recommendation to get access to the work area. This recommendation is to give a safe work area and to minimize possible damage to surrounding aircraft parts. Alternative steps can be used at the operator’s discretion.
(1) Obey all electrical/electronic safety precautions. Refer to AMM 24−00−00−910−801.
(2) For PART A :
(a) Open and tag the circuit breaker that follows:
MODEL BD−700−1A10 (BD−700) Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 6 of 26
LOCATION CB NO. NAME ZONE CCBP 2 A−6 BOARDING PANEL 221
(3) For PART B :
(a) No setup required.
(4) For PART C :
(a) Obey all the oxygen system safety precautions. Refer to AMM 35−00−00−910−801.
(b) If replacing the entrance area and/or the jumpseat oxygen hose, open and tag the circuit breaker that follows:
LOCATION CB NO. NAME ZONE CCBP 2 A−6 BOARDING PANEL 221
(c) If replacing the flight compartment, the third crew (LHS enclosure) and/or the crew rest hoses, do the following:
(i) Make sure the BATTERY MASTER switch in the flight compartment is set to OFF.
(ii) Remove the forward equipment compartment access panels (131AL/132AR). Refer to AMM 52−45−05−000−801.
(d) Open the applicable PSUs. Refer to SMM 25−17−64−010−801, SMM 25−28−54−010−801 and SMM 25−42−56−010−801.
B. PART A — Part Number Inspection on Existing Oxygen System NOTE: If it is not possible to complete all the instructions in this Service Bulletin because of the configuration of the aircraft, submit an SRPSA for analysis and to get an approved disposition to complete this Service Bulletin.
(1) Refer to Figure 1 and 2 and inspect the part number of the oxygen hose installations at the locations that follow. Note the green fitting hoses installed part numbers only in Table 2 of Appendix 1:
(a) If installed, remove the mid cabin removable partition. Refer to SMM 25−23−64−000−801.
(b) Open and inspect the installation in the crew rest PSU. Refer to SMM 25−17−64−010−801.
(c) Open and inspect the installations in the cabin PSUs. Refer to SMM 25−28−54−010−801.
(d) Inspect the cabin transition hose installations.
(e) Inspect the installation in the AFT lavatory as follows:
MODEL BD−700−1A10 (BD−700) Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 7 of 26
(i) If the installation is in the PSU, open the AFT lavatory PSU. Refer to SMM 25−42−56−010−801.
(ii) If the installation is behind the headliner, remove the AFT lavatory headliner. Refer to SMM 25−42−54−000−801.
(iii) Inspect the installation in the AFT lavatory.
(f) Remove the two RHS dado panels, or until visual inspection is possible.
Refer to SMM 25−28−56−000−801.
(g) Inspect the two therapeutic oxygen installations.
MODEL BD−700−1A10 (BD−700) Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 8 of 26
A GREEN FITTING CORRESPONDS TO THE O2C20T1 SERIES
REMOVE AND REPLACE
A BLUE FITTING CORRESPONDS TO THE 3891X SERIES
NO REPLACEMENT REQUIRED SB700−35−6501_001 FIGURE 1 MODEL BD−700−1A10 (BD−700) Basic Issue: Sep 28/2020 Revision 01: Feb 12/2021 700−35−6005 Page 9 of 26