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Discard the Basic Issue of this Service Bulletin dated Aug 23/2021, and the Information Sheet dated Sep 21/2021 and replace in its entirety with this Revision 01.
Service Bulletin No. 605−35−006 Date of Basic Issue Aug 23/2021 Revision No. 01 Dated Jan 28/2022 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. Change, in the Service Bulletin Summary Sheet, to revise planning Information as YES.
2. Incorporated Info Sheet dated Sep 21/2021, in Paragraph 1, to add Note 2.
3. Change, in Paragraph 1.C., to delete an instruction statement.
4. Make miscellaneous minor changes, as necessary, with no change of context.
SERVICE BULLETIN MODEL CL−600−2B16 605−35−006 Page 1 of 1
REVISION TRANSMITTAL SHEET
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. for details.
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 CL−600−2B16 ATA 35−11 OXYGEN Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 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. The quantity of oxygen hose assemblies required to do this Service Bulletin depends on the aircraft specific floor plan configurations that follow:
FLOOR PLAN CONFIG O2 CORP PART NO.
HYDRAFLOW PART NO.
QTY
PER A/C 1 O2C20T1−5−0700 38911−05−0070 8 2 O2C20T1−5−0700 38911−05−0070 9 3 O2C20T1−5−0700 38911−05−0070 8 O2C20T14−5−8900 38913−05−0890 1 4 O2C20T1−5−0700 38911−05−0070 9 O2C20T14−5−8900 38913−05−0890 1 SPECIAL 1 (For A/C Serial No. 5896 and 5898) O2C20T1−5−0700 38911−05−0070 9
SERVICE BULLETIN my.businessaircraft.bombardier.com MODEL CL−600−2B16 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.
2021−2022 Bombardier Inc. All rights reserved Learjet, Challenger, Global, are registered trademarks of Bombardier Inc. or its subsidiaries.
Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 1 of 15 This Service Bulletin is available at:
FLOOR PLAN CONFIG O2 CORP PART NO.
HYDRAFLOW PART NO.
QTY
PER A/C SPECIAL 2 (For A/C Serial No. 5909, 5911 and 5913) O2C20T1−5−0700 38911−05−0070 10 A. Effectivity CL−600−2B16 aircraft Serial No. 5702 to 5705, 5707, 5709, 5710, 5712, 5714, 5715, 5718, 5719, 5722, 5723, 5725, 5727, 5728, 5731 to 5733, 5735, 5736, 5740, 5742, 5743, 5745, 5746, 5748 to 5750, 5752 to 5754, 5756 to 5758, 5760 to 5762, 5764 to 5766, 5768 to 5770, 5772 to 5774, 5776 to 5780, 5782 to 5787, 5790, 5791, 5793, 5794, 5796, 5797, 5799, 5800, 5802, 5803, 5805 to 5814, 5816, 5818 to 5820, 5823 to 5829, 5831 to 5853, 5856, 5857, 5859 to 5863, 5865 to 5874, 5876 to 5881, 5883 to 5888, 5890 to 5894, 5896 to 5898, 5900 to 5906, 5908 to 5911, 5913 to 5938, 5940 to 5947, 5949 to 5980, 5982 to 5985, 5987 and 5988.
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:
There have been reports that oxygen masks failed to deploy during a scheduled maintenance due to oxygen leakage from the flexible hoses.
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:
This Service Bulletin instructs to remove and replace all installed O2C20T1 series flexible hoses with equivalent 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 to:
− Examine the part numbers of lavatory oxygen hose assembly, MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 2 of 15
− Replace all the O2C20T1 series hoses with the equivalent 3891X series hoses, if leaks are found or prior to particular time intervals based on age of aircraft, and − Do the ground test procedure for the oxygen system flex line replacement.
D. Compliance For aircraft with six years or more from Aircraft Completion STC issuance (Specific aircraft MDS release date), this modification is recommended within 12 months of Service Bulletin release date (Basic Issue).
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.
E. Approval The technical content of this Service Bulletin has been approved under the authority of Transport Canada Civil Aviation (TCCA) STC SA06–90, FAA STC number ST02355NY, EASA STC number 10016019.
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, removal of interior furnishings, repainting, supervision and inspection.
For more information related to the manpower, refer to SB 650−00−002.
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.
3. Labor hours are based on the fact that the modification will be done at the next scheduled maintenance task or inspection. Therefore no man−hours are allotted to prepare the aircraft for maintenance or to prepare for this Service Bulletin.
3 man−hours are necessary per oxygen hose to do this modification.
The labor required to do this Service Bulletin is at no cost if:
− The work is done during new aircraft warranty period, − 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 its release date (Basic Issue).
MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 3 of 15
G. Material − Cost and Availability No kit is necessary to do this modification.
The parts listed in Paragraph 3.B. may be necessary to do this modification. For material data, refer to Paragraph 3.C.
The parts are available at no cost if:
− Ordered during new aircraft warranty period, and − A no−charge purchase order is sent to Bombardier Aviation in less than 48 months, from this Service Bulletin release date (Basic Issue).
The parts can be purchased by sending a purchase order to Bombardier Aviation Parts Services, Montreal.
For all parts transactions, Bombardier Aviation’s current Spare Parts and Component Repair Price Catalogue General Terms and Conditions apply. These terms and conditions are found on the Bombardier Customer Portal at:
my.businessaircraft.bombardier.com Smart Parts does not pay for this recommended Service Bulletin at any time.
H. Tooling The equipment and tools listed below are necessary to do this modification:
GSE REFERENCE NO. PART NO. DESCRIPTION 24−00−24 S4933959−501 Tag, Circuit Breaker Commercially Available − Oxygen Pressure Test Gauge 0 to 100 psi (0 to 689.48 kPa) with 1/2−20 UNF end fittings/adapters (per GTP) Commercially Available − Torque, Wrench 100 to 125 lbf in(11.3 to 14.12 Nm) NOTES: 1. Refer to the CL−605 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, CL−605 for acceptable GSE equivalents.
3. 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.
MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 4 of 15
I. Weight and Balance No change.
J. Electrical Load Data No change.
K. References − TCCA Airworthiness Directive, (pending).
− Bombardier Aviation, Restriction and/or Special Instruction (RSI), C−4272, Rev. A.
− Bombardier Aviation, Kit Drawing BAS63038524, Rev. NC.
− Bombardier Aviation Ground Test Procedure, BAS63128044, Rev. NC.
− CL−605 Aircraft Maintenance Manual (AMM), Chapters 6, 24 and 35.
− CL−605 Supplemental Maintenance Manual (SMM), Chapters 25 and 35.
− CL−605 Standard Practices Manual (SPM), Chapters 20 and 51.
L. Other Publications Affected − Bombardier Aviation, Supplemental Illustrated Parts Catalog Addendum (SIPCA), A04−2003−SIPCA.
− Bombardier Aviation, Supplemental Maintenance Manual Addendum (SMMA), A04−2002−SMMA.
M. Equivalent Service Bulletin − For the Challenger 650 aircraft, use SB 650−35−002.
2. ACCOMPLISHMENT INSTRUCTIONS NOTES: 1. All TASKs given in the procedures that follow are from the CL−605 Aircraft Maintenance Manual (AMM) unless otherwise specified.
2. All references made to zones, access panels and/or doors, are from the CL−605 Aircraft Maintenance Manual (AMM), Chapter 6.
A. Aircraft Setup WARNING: OBEY ALL THE OXYGEN SAFETY PRECAUTIONS WHEN YOU DO
MAINTENANCE ON THE OXYGEN SYSTEM AND OXYGEN SYSTEM COMPONENTS. IF YOU DO NOT OBEY THE SAFETY PRECAUTIONS, YOU CAN CAUSE A FIRE OR AN EXPLOSION.
THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 5 of 15
WARNING: DO NOT LET OIL, GREASE OR SOLVENTS GET ON YOUR
HANDS, CLOTHING OR THE EQUIPMENT USED TO DO WORK ON THE OXYGEN SYSTEM. IF OXYGEN TOUCHES GREASE, OIL OR SOLVENTS, THEY CAN START TO BURN.
(1) Obey all the electrical/electronic safety precautions. Refer to AMM 24−00−00−910−801.
(2) Obey all the oxygen system safety precautions. Refer to AMM 35−00−00−910−801.
(3) In the flight compartment, on the PASSENGER OXYGEN control panel, set the CLOSED/NORMAL/OVERRIDE switch to CLOSED.
(4) Attach a DO NOT ACTIVATE sign to the PASSENGER OXYGEN control panel.
(5) Open the Passenger Service Unit (PSU). Refer to SMM 25−26−53−010−801.
(6) Remove the lavatory headliner. Refer to SMM 25−40−55−000−801.
B. Modification — Replacement of Defective Flexible Oxygen Hose NOTE: If it is not possible to complete all the instructions of 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) Examine the part numbers of existing oxygen hose assembly in the lavatory oxygen system.
(a) If the oxygen hose assembly, Part No. O2C20T14−5−8900, is installed, replace all the O2C20T1 series hoses in the lavatory as per step (3) and go to step (2).
(b) If the oxygen hose assembly, Part No. 38302F0650C, is installed, no further action is necessary. Go to step (2).
(2) For all cabin locations other than lavatory, replace all the O2C20T1 series hoses as per step (3).
(3) Remove and replace the O2C20T1 series oxygen hoses as follows. Refer to Kit Drawing BAS63038524.
CAUTION: USE TWO WRENCHES WHEN YOU REMOVE THE FITTING.
USE ONE WRENCH TO HOLD THE FITTING, AND THE OTHER WRENCH TO LOOSEN THE COUPLING NUT. YOU CAN CAUSE DAMAGE TO THE COMPONENTS.
CAUTION: USE TWO WRENCHES WHEN YOU TORQUE THE FITTING.
USE ONE WRENCH TO HOLD THE FITTING, AND THE OTHER WRENCH TO TORQUE THE NUT. YOU CAN CAUSE DAMAGE TO THE COMPONENTS.
MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 6 of 15
CAUTION: MAKE SURE THAT YOU PUT A PROTECTIVE COVER OR
CAP IN ALL THE OPEN OXYGEN LINES AND COMPONENT FITTINGS. IF YOU DO NOT DO THIS IMMEDIATELY AFTER
THEY ARE DISCONNECTED, UNWANTED MATERIALS CAN GO INTO THE OXYGEN SYSTEM. THIS CAN CAUSE CONTAMINATION OF THE OXYGEN SYSTEM.
(a) Disconnect and discard the O2C20T1 series hoses from the oxygen deployment box fitting and the oxygen rigid line.
(b) Replace all the O2C20T1 series hoses with equivalent 3891X series hoses as given in the table below:
NOTES: 1. Reuse the 4−way tie mount. If it is damaged during removal, it is permissible to use mounting base, Part No. ABMM−D.
Bond the mounting base with Araldite 2011 adhesive as per manufacturer specifications. It is permissible to use alternate adhesive and process as per SPM 51−21−67.
2. Make sure that there is a clearance of 0.25 in (6.35 mm) between the hose assembly and the surrounding structure or components that can cause damages. Securely install the hoses with the tie down strap, Part No. B0816019−002 or equivalent, to prevent fouling with other existing parts.
3. Make sure that a minimum bend radius of
0.75 in (19.05 mm) is maintained in the hose assembly, Part No. 38911−05−0070.
4. Do not crush oxygen hoses during installation.
5. If the existing line tap elbow assembly is damaged during hose replacement, replace it with a new elbow assembly, Part No. O2C10T05−5−5.
6. Do not use teflon tape on any flared male or female tube fittings and coupling sleeve threads.
7. For the connection of oxygen lines on male pipe threads, apply anti−seize tape conforming to MIL−T−27730, Type I.
On male flared threads, apply only anti−seize compound that conforms to MIL−G−27617, which is suitable for gaseous oxygen.
O2C20T1 SERIES HOSE PART NO.
EQUIVALENT 3891X SERIES HOSE PART NO.
O2C20T1−5−0700 38911−05−0070 O2C20T14−5−8900 38913−05−0890 MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 7 of 15
(c) Install convolex tube, Part No. HCTE−0500−0 over the new oxygen hose assembly with two turns of fiberglass tape, Part No. MIL−1−19166.
(d) Torque the oxygen hose fitting to the deployment box and the oxygen rigid line to 100 to 125 lbf in (11.3 to 14.12 Nm). Refer to SPM−MM 20−22−00−910−802.
(e) Secure the oxygen hose fitting with a lockwire. Refer to SPM−MM 20−50−00−400−801.
C. Testing
(1) In the flight compartment, on the PASSENGER OXYGEN control panel, set the CLOSED/NORMAL/OVERRIDE switch to OPEN.
(2) Do the ground test procedure for the oxygen system flex line replacement.
Refer to Bombardier Document Number BAS63128044.
D. Close−out
(1) Remove all tools, equipment and unwanted materials from the aircraft.
(2) Install the lavatory headliner. Refer to SMM 25−40−55−400−801.
(3) Close the PSU. Refer to SMM 25−26−53−410−801.
(4) Remove the DO NOT ACTIVATE sign from the PASSENGER OXYGEN control panel.
E. Recording You can do each PART of this Service Bulletin independently. When any PART of this Service Bulletin is completed, make an entry in the aircraft log and send the attached Incorporation Notice to Bombardier Business Aircraft Customer Services (BBACS).
For information, correction(s), comment(s) and/or feedback regarding Service Bulletins released on the Customer Portal, please contact the Service Bulletin Group at the following email address:
bbad_SBgroup@aero.bombardier.com
3. MATERIAL INFORMATION A. Kits No kits required.
B. Parts The parts that follow may be necessary to do this Service Bulletin and are available from Bombardier Aviation Parts Services, Montreal:
MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 8 of 15
NEW PART NO. QTY ITEM USED PART NO. INSTRUCTIONS- DISPOSITION 38911−05−0070 AR Hose Assembly − Oxygen O2C20T1−5−0700 Discard 38913−05−0890 AR Hose Assembly − Oxygen O2C20T14−5−8900 Discard ABMM−D AR 4−way TieMount − − B0816019−002 AR Strap, TieDown − − HCTE−0500−0 AR ConvolexTube − − O2C10T05−5−5 AR Elbow Line Type Assembly − − NOTE: The part numbers for the items listed above are subject to change without revision to this Service Bulletin. In case of discrepancy between this list and any other list, the Illustrated Parts Catalog prevails and shall be used to determine the latest part number.
C. Material The materials that follow, or equivalent, are necessary to do this Service Bulletin.
These can be purchased from a local supplier. Bombardier Aviation does not pay for these consumables.
MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 9 of 15
DESCRIPTION PARTNO./NAME SPECIFICATION QUANTITY
SUPPLIER (SEE NOTE) Araldite 2011 − − AsNecessary Code: A Cloth, No−Lint − − AsNecessary Compound, Anti−Seize − MIL−G−27617 AsNecessary Compound, Leak Detection − MIL−L−25567 AsNecessary Fiberglass Tape − MIL−I−19166 AsNecessary Lockwire NASM20996NC32 − AsNecessary Tape, Anti−Seize − MIL−T−27730,Type I AsNecessary NOTES: 1. Refer to the table that follows for each supplier’s address listed by codes.
2. The Curing Time (CT), if applicable, for each consumable material is indicated with the description of each product.
3. At time of release of this Service Bulletin, the information on the supplier was valid and accurate. In the event that this information has changed, the operator is encouraged to use the World Wide Web to find a local supplier.
SUPPLIERS ADDRESSES BY CODES Code: A Commercially Available D. Publications The publications that follow are required after this Service Bulletin has been incorporated.
− Bombardier Aviation, Supplemental Illustrated Parts Catalog Addendum (SIPCA), A04−2003−SIPCA.
MODEL CL−600−2B16 Basic Issue: Aug 23/2021 Revision 01: Jan 28/2022 605−35−006 Page 10 of 15