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SPECIAL CHECK/REWORK — PASSENGER OXYGEN SYSTEM —
REPLACEMENT OF THE PASSENGER OXYGEN MASK LANYARD 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 Within 48 months of SB release EFFECTIVITY:
AC 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 MANPOWER: See Paragraph 1.F.
CONTINUED AIRWORTHINESS (CAW)
FLEET CAMPAIGN NOYES 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 YES NO 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.
SERVICE BULLETIN SUMMARY my.businessaircraft.bombardier.com MODEL CL−600−2B16 ATA 35−20 OXYGEN Basic Issue: Oct 28/2022 605−35−008 Page 1 of 2 This Service Bulletin is available at:
To place an order for parts or kits, please call Bombardier Aviation Parts Services at:
514−855−2999 or 1−866−538−1247 MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 2 of 2
SPECIAL CHECK/REWORK — PASSENGER OXYGEN SYSTEM —
REPLACEMENT OF THE PASSENGER OXYGEN MASK LANYARD
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. This Service Bulletin is covered by a dedicated schedule. Dedicated schedules are used to reserve and manage inventory due to limited availability of rotable stock, parts and/or kits. Parts are limited, therefore, advance part scheduling with our In−Service Implementation Team (ISIT) is recommended prior to a maintenance visit. Please contact your Regional Manager (RM), Field Service Representative (FSR) or Customer Service Representative (CSR) to schedule your aircraft as there is a limited availability. The parts will be allocated on a first come first serve basis.
For more information on dedicated schedules, refer to SB 605−00−002.
3. For cost savings, it is suggested that PART B and PART C of this Service Bulletin be done at the next Maintenance Check, STLMC 05−21−11 (Chapter 5, Task No. 35−23−65−601) Operational Test of the Passenger Oxygen System. PART B and PART C of this Service Bulletin and the Maintenance Check require deployment of the passenger masks.
SERVICE BULLETIN my.businessaircraft.bombardier.com MODEL CL−600−2B16 ATA 35−20 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.
2022 Bombardier Inc. All rights reserved Learjet, Challenger, Global, are registered trademarks of Bombardier Inc. or its subsidiaries.
Basic Issue: Oct 28/2022 605−35−008 Page 1 of 12 This Service Bulletin is available at:
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 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 Service Bulletin(s).
B. Reason Some oxygen box lanyards P/N C291564−501/−505 provided in Kits P/N CDKC29−006−501/−503 via SB 605−35−003 had improper crimping and/or the ends were not sealed. Non−conformant lanyards can cause the activation pin to remain in the manifold when the lanyards are pulled in an emergency, resulting in no oxygen flow to the mask.
This Service Bulletin gives instructions to inspect and if necessary, replace the non−conformant oxygen box lanyards.
C. Description This Service Bulletin gives instructions in to:
− Open the left and right side Passenger Service Units (PSUs) to get access to the back side of the cabin oxygen box assemblies, − Remove the lavatory headliners to get access to the back side of the lavatory oxygen box assemblies, and − Remove the cover of the lavatory oxygen box assembly.
This Service Bulletin gives instructions in PART A, to:
− Inspect the lot number of existing spare kits in stock.
This Service Bulletin gives instructions in PART B, to:
− Inspect the lot number of the cabin oxygen box assemblies.
This Service Bulletin gives instructions in PART C, to:
− Drop the oxygen masks (if not already deployed), − Replace any non−conformant lanyards that are found, and − Repack the passenger oxygen masks.
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 2 of 12
After PART A, PART B and/or PART C, as applicable:
− Close the access to the oxygen box assemblies, the lavatory headliners and PSUs.
D. Compliance Recommended within 48 months from this Service Bulletin release date (Basic Issue).
E. Approval The technical content of this Service Bulletin has been approved under the authority of Transport Canada STC number SA06−90, FAA STC number ST02355NY, EASA STC number 10016019 (Old STC ref. EASA.IM.A.S.02186).
F. Manpower NOTES: 1. The man−hours given are estimates to help you schedule the tasks given in this bulletin. The estimates 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 estimates, refer to SB 605−00−002.
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 labor estimates and should be considered for planning purposes before you schedule this Service Bulletin.
1 man−hour is necessary to do PART A.
1 man−hour is necessary to do PART B.
1 man−hour is necessary to do PART C.
Bombardier does not pay for the labor to do PART A.
The labor required to do PART B and PART C of this Service Bulletin is at no cost if:
− the work is done at Bombardier Business Aviation Services (BBAS) or Authorized Service Facilities (ASF), and − this Service Bulletin is scheduled in less than 48 months from its release date (Basic Issue).
Additional man−hours are necessary to repack the masks into the oxygen box assemblies.
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 3 of 12
Bombardier does not pay for the labor to repack the masks into the oxygen box assemblies. This is part of the scheduled operational test of the passenger oxygen system.
G. Material − Cost and Availability The parts listed in Paragraphs 3.B. are necessary to do PART C of this Service Bulletin. Refer to the table that follows for the applicable aircraft effectivity:
PART NO. AIRCRAFT EFFECTIVITY PRICE CDKC29−006−501 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, 5897, 5900 to 5906, 5908, 5909, 5911, 5913 and 5924 to 5926 Please contact Bombardier Aviation Parts Services, in Montreal, for delivery lead times and confirmation of prices.
CDKC29−006−503 5896, 5898, 5910, 5914 to 5923, 5927 to 5938, 5940 to 5947 5949 to 5980, 5982 to 5985, 5987 and 5988.
This Service Bulletin is covered by a dedicated schedule. Dedicated schedules are used to reserve and manage inventory due to limited availability of rotable stock, parts and/or kits. Parts are limited, therefore, advance part scheduling with our In−Service Implementation Team (ISIT) is recommended prior to a maintenance visit. Please contact your Regional Manager (RM), Field Service Representative (FSR) or Customer Service Representative (CSR) to schedule your aircraft as there is a limited availability. The parts will be allocated on a first come first serve basis.
For more information on dedicated schedules, refer to SB 605−00−002.
These kits are available at no cost if a no−charge purchase order is sent to Bombardier Aviation in less than 48 months from the release date of this Service Bulletin (Basic Issue).
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 4 of 12
Smart Parts Plus does not pay for the kits to do this rework.
H. Tooling The equipment and tools listed below are necessary to do this rework.
GSE REFERENCE NO. PART NO. DESCRIPTION 24−00−24 S4933959−501 Tag, Circuit Breaker NOTES: 1. Refer to the CL−605 Illustrated Tool and Equipment Manual to make sure you use the correct equipment configuration.
2. Refer to the Liability Statement for the CL−605 for acceptable GSE equivalents.
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−4284, Rev. −−.
− Safran Cabin Inc., Service Information Letter SLC298561−01 (attached).
− Bombardier Aviation, SB 605−35−003 Modification − Passenger Oxygen System − Replacement of the Passenger Oxygen Mask Lanyard.
− CL−605 Supplemental Maintenance Manual (SMM), Chapters 25 and 35.
− CL−605 Aircraft Maintenance Manual (AMM), Chapters 6, 24 and 35.
L. Publications Affected None.
M. Equivalent Service Bulletin None.
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 5 of 12
2. ACCOMPLISHMENT INSTRUCTIONS NOTES: 1. All TASKs given in the procedures that follow are from the CH 605 Aircraft Maintenance Manual (AMM) unless otherwise specified.
2. All references made to zones, access panels and/or doors, are from the CH 605 AMM, Chapter 6.
A. Aircraft Setup
(1) Obey all electrical/electronic safety precautions. Refer to AMM 24−00−00−910−801.
(2) Remove electrical power from the aircraft. Refer to AMM 24−00−00−861−802.
(3) Obey all the oxygen safety precautions. Refer to AMM 35−00−00−910−801.
(4) For 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, 5832, 5834 to 5853, 5856, 5857, 5859 to 5863, 5865 to 5874, 5876 to 5881, 5883 to 5888, 5890 to 5894, 5897, 5900 to 5906, 5908, 5909, 5911, 5913 and 5924 to 5926, do the steps that follow:
(a) Open the PSUs to get access to the cabin oxygen box assemblies, Part No. C298581−501, −505 and/or −507. Refer to SMM 25−26−53−010−801.
(b) If needed, completely remove the lavatory right−hand headliner and partially remove the center headliner so that it can be lowered to get access to the backside of the oxygen box assembly, Part No.
C298581−503. Refer to SMM 25−40−55−000−801.
(5) For aircraft, Serial No. 5896, 5898, 5910, 5914 to 5923, 5927 to 5938, 5940 to 5947, 5949 to 5980, 5982 to 5985, 5987 and 5988, do the step that follows:
(a) Completely remove the lavatory right−hand headliner and partially remove the center headliner so that it can be lowered to get access to the backside of the oxygen box assembly, Part No. C298581−503. Refer to SMM 25−40−55−000−801.
(6) For aircraft, Serial No. 5833 do the steps that follow:
(a) Open the right side PSUs to get access to the back side of the cabin oxygen box assemblies, Part No. C298581−505 located above the divan.
Refer to SMM 25−26−53−010−801.
(b) If needed, completely remove the lavatory right−hand headliner and partially remove the center headliner so that it can be lowered to get access to the backside of the oxygen box assembly, Part No.
C298581−503. Refer to SMM 25−40−55−00−801.
(c) To get access to the lavatory oxygen mask lanyard, use a flat blade tool and carefully pry off the cover of the lavatory oxygen box assembly.
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 6 of 12
B. PART A – Special Check of Spare Oxygen Box Lanyard Kits
(1) Verify the lot number of all kits CDKC29−006−501 or CDKC29−006−503 in spares (including at BAS spare) against the lot numbers in Table 1.
(a) If the lot number is not listed in Table 1, no further action is necessary for PART A. Continue to Paragraph 2.C.
(b) For kits with a lot number listed in Table 1, do as follows:
(i) Discard the kits.
(ii) Order new oxygen box lanyard kit with the same CDK number CDKC29−006−501 or CDKC29−006−503, as applicable.
TABLE 1 LOT# Part Number 2011007411 CDKC29−006−501 Oxygen Box Lanyard Kit 2012010412 2101018703 2101035167 2102030139 2104003817 2105005522 2011029525 CDKC29−006−503 Oxygen Box Lanyard Kit 2012006900 2103007412 2103029992 NOTE: All Kits where the lot numbers are not listed above donot need to be changed.
C. PART B – Special Check of the Oxygen Box Assemblies NOTE: If this Service Bulletin is being planned at the same time as the drop−down test of the passenger masks, it is preferable to perform the test first to provide immediate access to all masks. Do not repack the masks until after this SB has been completed.
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 7 of 12
(1) For 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, 5832, 5834 to 5853, 5856, 5857, 5859 to 5863, 5865 to 5874, 5876 to 5881, 5883 to 5888, 5890 to 5894, 5897, 5900 to 5906, 5908, 5909, 5911, 5913 and 5924 to 5926, do the steps that follow:
(a) Visually inspect one or all lanyards in the cabin or lavatory oxygen box assemblies, Part No. C298581−501, −503, −505 and/or −507 in accordance with Paragraph B.(1) from Safran Service Information Letter SLC298561−01, latest revision.
(b) If the lanyard is conformant, no further action is necessary for PART B .
Proceed to close−out in Paragraph 2.E.
(c) If the lanyard is non−conformant, go to PART C and do the rework in Paragraph 2.D.(1).
(2) For aircraft, Serial No. 5896, 5898, 5910, 5914 to 5923, 5927 to 5938, 5940 to 5947, 5949 to 5980, 5982 to 5985, 5987 and 5988 do the steps that follow:
(a) Visually inspect one or all lanyards on the lavatory oxygen box assemblies, Part No. C298581−503 in accordance with Paragraph B.(1) from Safran Service Information Letter SLC298561−01, latest revision.
(b) If the lanyard is conformant, no further action is necessary for PART B .
Proceed to close−out in Paragraph 2.E.
(c) If the lanyard is non−conformant, go to PART C and do the rework in Paragraph 2.D.(1).
(3) For aircraft, Serial No. 5833 do the steps that follow:
(a) Visually inspect one or all lanyards in the cabin (above the divan) or lavatory oxygen box assemblies, Part No. C298581−503, −505 in accordance with Paragraph B.(1) from Safran Service Information Letter SLC298561−01, latest revision.
(b) If the lanyard is conformant, no further action is necessary for PART B .
Proceed to close−out in Paragraph 2.E.
(c) If the lanyard is non−conformant, go to PART C and do the rework in Paragraph 2.D.(1).
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 8 of 12
D. PART C – Rework – Replace the Passenger Oxygen Mask Lanyard
(1) For 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, 5832, 5834 to 5853, 5856, 5857, 5859 to 5863, 5865 to 5874, 5876 to 5881, 5883 to 5888, 5890 to 5894, 5897, 5900 to 5906, 5908, 5909, 5911, 5913 and 5924 to 5926, do the steps that follow:
(a) Replace lanyard assemblies in all locations in accordance with Paragraph B.(3) and B.(4) from Safran Service Information Letter SLC298561−01, latest revision.
(b) If applicable, repack the passenger oxygen masks. Refer to SMM 35−20−53−530−801.
(c) Proceed to close−out in Paragraph 2.E.
(2) For aircraft, Serial No. 5896, 5898, 5910, 5914 to 5923, 5927 to 5938, 5940 to 5947, 5949 to 5980, 5982 to 5985, 5987 and 5988 do the steps that follow:
(a) Replace the lanyards of the oxygen masks in the lavatory only in accordance with Paragraph B.(4) from Safran Service Information Letter SLC298561−01, latest revision.
(b) If applicable, repack the passenger oxygen masks. Refer to SMM 35−20−53−530−801.
(c) Proceed to close−out in Paragraph 2.E.
(3) For aircraft, Serial No. 5833 do the steps that follow:
(a) Replace the lanyards of the oxygen masks for the oxygen box assemblies situated above the divan and in the lavatory in accordance with Paragraph B.(3) and B.(4) from Safran Service Information Letter SLC298561−01, latest revision.
(b) If applicable, repack the passenger oxygen masks. Refer to SMM 35−20−53−530−801.
(c) Proceed to close−out in Paragraph 2.E.
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 9 of 12
Lanyard Assembly Figure 1 Lanyard Assembly Figure 2 E. Close−out
(1) If needed, raise and secure the center lavatory headliner then install the right−hand lavatory headliner. Refer to SMM 25−40−55−400−801.
(2) Install the cover of the cabin and lavatory oxygen box assemblies.
(3) Close the PSU. Refer to SMM 25−26−53−410−801.
(4) Remove all tools, equipment and unwanted materials from the aircraft.
MODEL CL−600−2B16 Basic Issue: Oct 28/2022 605−35−008 Page 10 of 12