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Discard the Basic Issue of this Service Bulletin dated Dec 07/2020, and the Information Sheet dated Jan 15/2021 and replace in its entirety with this Revision 01.
Service Bulletin No. 604−27−039 Date of Basic Issue Dec 07/2020 Revision No. 01 Dated Apr 06/2021 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 Paragraph 1.B., to revise objective/benefit statement.
2. Change, in Paragraph 1.C., to revise description statements.
3. Change, in Paragraph 1.D., to revise the compliance.
4. Change, in Paragraph 1.F., to revise the manpower statements.
5. Change, in Paragraph 1.K., to revise Restriction and/or Special Instruction (RSI), C−4265 to Rev. A.
6. Change, in Paragraph 2.B., to delete PART A for temporary periodic testing.
7. Change, in Paragraph 2.C., to rename PART B as PART A and revise the statements.
8. Change, in Paragraph 2.D., to rename PART C as PART B and revise Note 2.
9. Make miscellaneous minor changes, as necessary, with no change of context.
SERVICE BULLETIN MODEL CL−600−2B16 604−27−039 Page 1 of 1
REVISION TRANSMITTAL SHEET
SPECIAL CHECK/MODIFICATION – RUDDER CONTROL SYSTEM –
INSPECTION OF RUDDER LOAD LIMITER 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: A/C Serial No. 5301 to 5665 MANPOWER: Refer to 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 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, 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 27−21
FLIGHT CONTROLS Basic Issue: Dec 07/2020 Revision 01: Apr 06/2021 604−27−039 Page 1 of 1 This Service Bulletin is available at:
SPECIAL CHECK/MODIFICATION – RUDDER CONTROL SYSTEM –
INSPECTION OF RUDDER LOAD LIMITER
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. AMM 27−21−34−400−801 Revision 89 or later is a prerequisite and must be incorporated into the AMM before doing inspection of rudder PCU load limiter for correct crimping.
A. Effectivity CL−600−2B16 aircraft, Serial No. 5301 to 5665.
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 Objective/Benefit:
The Service Bulletin introduces a one−time visual inspection of the rudder PCU load limiters for correct crimping.
C. Description This Service Bulletin gives instructions in PART A to:
− Do the visual inspection of nut and end cap of the rudder PCU load limiter for correct crimping, and
SERVICE BULLETIN my.businessaircraft.bombardier.com MODEL CL−600−2B16 ATA 27−21
FLIGHT CONTROLS 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: Dec 07/2020 Revision 01: Apr 06/2021 604−27−039 Page 1 of 7 This Service Bulletin is available at:
− If the nut and end cap of the rudder PCU load limiter are not crimped properly, do PART B of this Service Bulletin.
This Service Bulletin gives instructions in PART B to:
− Replace the rudder PCU load limiter.
After PART A and/or PART B, as applicable:
− Do the applicable test(s) as required per AMM.
D. Compliance Recommended within 2200 flight hours from this Service Bulletin release date (Basic Issue).
NOTE: 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 Transport Canada Civil Aviation (TCCA) Design Approval Organization (DAO) No. DAO #93−Q−02.
NOTES: 1. The technical content of this Service Bulletin is accepted by the FAA under the Canada/USA bilateral Aviation Safety Agreement.
2. The technical content of this Service Bulletin is accepted by EASA under the Canada/EU bilateral Aviation Safety Agreement.
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 604−00−002.
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.
1 man−hour is necessary to do PART A of this Service Bulletin.
10 man−hours are necessary to do PART B of this Service Bulletin.
For PART A, Bombardier Aviation does not pay for the labor to do this special check.
MODEL CL−600−2B16 Basic Issue: Dec 07/2020 Revision 01: Apr 06/2021 604−27−039 Page 2 of 7
The labor required to do PART B 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 12 months from its release date (Basic Issue).
G. Material − Cost and Availability No kit is necessary to do this Service Bulletin.
The parts in Paragraph 3.B may be necessary to do this Service Bulletin.
The parts are available at no cost if a no−charge purchase order is sent to Bombardier Aviation in less than 12 months from this Service Bulletin release date (Basic Issue).
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 pays for the parts listed in Paragraph 3.B only if replacement is required.
H. Tooling The equipment and tools listed below are necessary to do this Service Bulletin:
GSE REFERENCE NO. PART NO. DESCRIPTION 24−00−24 − Circuit Breaker Tag − Red (Optional) 27−00−02 − Kit − Rigging Pins Commercially Available − Wrench, Torque 25 to 30 lbf in (2.83to 3.38 Nm) NOTES: 1. Refer to the CL−604 Illustrated Tool and Equipment Manual (ITEM) to make sure that you use the correct equipment configuration.
2. Refer to the introduction for the CL –604 of the publication listed in Note 1 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: Dec 07/2020 Revision 01: Apr 06/2021 604−27−039 Page 3 of 7
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−4265, Rev. A.
− CL−604 Aircraft Maintenance Manual (AMM), Chapters 6, 12, 24, 27 and 55.
− CL−604 Aircraft Illustrated Parts Catalog (AIPC), Chapter 27.
L. Other Publications Affected None.
M. Equivalent Service Bulletins − For the Challenger 600 aircraft, use Service Bulletin 600−0776.
− For the Challenger 601 aircraft, use Service Bulletin 601−0648.
− For the Challenger 605 aircraft, use Service Bulletin 605−27−010.
− For the Challenger 650 aircraft, use Service Bulletin 650−27−003.
2. ACCOMPLISHMENT INSTRUCTIONS NOTES: 1. All TASKs given in the procedures that follow are from the CL−604 Aircraft Maintenance Manual unless otherwise specified.
2. All references made to zones, access panels and/or doors, are from the CL−604 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 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) Obey all the flight control safety precautions. Refer to AMM 27−00−00−910−801.
(3) Install the warning tags on the pilot and copilot rudder pedals and on the AIL/RUD TRIM control panel.
MODEL CL−600−2B16 Basic Issue: Dec 07/2020 Revision 01: Apr 06/2021 604−27−039 Page 4 of 7
(4) Open and tag the circuit breakers that follow:
LOCATION CB NUMBER CB NAME ZONE CBP−1 B8 HYD PUMP 3B 221 CBP−1 B11 HYD PUMP 2B 221 CBP−2 A2 HYD PUMP 3A 222 CBP−2 A5 HYD PUMP 1B 222 B. PART A — Special Check — One−time Visual Inspection of the Rudder PCU Load Limiters — The one−time visual Inspection must be carried out within 2200 FH from this Service Bulletin release date. If the nut and end cap of the rudder PCU load limiter is not crimped properly, replace the load limiter prior to the next flight NOTES: 1. 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.
2. The visual inspection can be done in conjunction with TLMC 5−10−40 (Chapter 5 Task No. 27−23−00−101 – Operational test of the PCU load limiters, refer to AMM 27−21−25−710−801).
(1) Do the visual inspection of the rudder PCU load limiter Part No. 600−91302−43 and 600−91302−53 for correct crimping. Refer to AMM 27−21−34−400−801 Revision 89 or later.
NOTE: Make sure that the nut and end cap are properly crimped.
(2) If the nut and end cap of the rudder PCU load limiter Part No. 600−91302−43 and 600−91302−53 are not crimped properly, do PART B of this Service Bulletin, prior to the next flight.
(3) If the nut and end cap of the rudder PCU load limiter Part No. 600−91302−43 and 600−91302−53 are crimped properly, go to Paragraph 2.D (Close−out).
NOTE: If you have disturbed the rudder system then do the required testing as given in the AMM.
C. PART B — Modification — Replacement of the Rudder PCU Load Limiter(s) NOTES: 1. 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.
2. AMM 27−21−34−400−801 Revision 89 or later is a prerequisite and must be incorporated into the AMM before installing a new PCU load limiter.
MODEL CL−600−2B16 Basic Issue: Dec 07/2020 Revision 01: Apr 06/2021 604−27−039 Page 5 of 7
(1) Remove the rudder PCU load limiter Part No. 600−91302−43 and/or 600−91302−53. Refer to AMM 27−21−34−000−801.
(2) Install the new rudder PCU load limiter Part No. 600−91302−43 and/or 600−91302−53. Refer to AMM 27−21−34−400−801.
D. Close Out NOTE: The steps in the Close−out section of this Service Bulletin, except for the return−to−service tests, are recommended steps. The steps give a recommendation to install components removed during the Aircraft Setup.
This recommendation is to make sure that the aircraft is safe and ready to return to service. Alternative steps can be used at the operator’s discretion.
(1) Remove the tags and close the circuit breakers that follow:
LOCATION CB NUMBER CB NAME ZONE CBP−1 B8 HYD PUMP 3B 221 CBP−1 B11 HYD PUMP 2B 221 CBP−2 A2 HYD PUMP 3A 222 CBP−2 A5 HYD PUMP 1B 222
(2) Remove all tools, equipment and other unwanted material from the aircraft.
(3) Remove the warning tags from the pilot and copilot rudder pedals and from the AIL/RUD TRIM 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. Kit No kits required.
MODEL CL−600−2B16 Basic Issue: Dec 07/2020 Revision 01: Apr 06/2021 604−27−039 Page 6 of 7
B. Parts The parts that follow may be necessary to do this Service Bulletin and are available from Bombardier Aviation Parts Services, Montreal:
NEW PART NO. QTY ITEM USEDPART NO. INSTRUCTIONS -DISPOSITION 600−91302−43 1 Load Limiter − − 600−91302−53 2 Bungee, LoadLimiter − − NOTE: The part number for the item listed above is 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 No materials required.
D. Publications No publications required.
MODEL CL−600−2B16 Basic Issue: Dec 07/2020 Revision 01: Apr 06/2021 604−27−039 Page 7 of 7
604−27−039 Rev. 01 Apr 06/2021 SPECIAL CHECK/MODIFICATION – RUDDER CONTROL SYSTEM –
INSPECTION OF RUDDER LOAD LIMITER bbad_SBgroup@aero.bombardier.com NOTE: Please use Salesforce only for troubleshooting issues or when Engineering deviation is necessary to accomplish the Service Bulletin modification.
SERVICE BULLETIN EVALUATION FORM (Your ideas will help us provide better bulletins) SERVICE BULLETIN: ISSUE: DATED:
TITLE:
For any 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:
SERVICE BULLETIN INCORPORATION SHEET − "604−27−039" Upon completion of the Service Bulletin, please fill−in, fax to
(514) 855−8798 or e−mail to Fracas at fracas.montreal@aero.bombardier.com If you’re reporting Service Bulletin (SB) Incorporations to CAMP, sending this Incorporation Sheet to Bombardier is not mandatory. If your aircraft is on another tracking system, please contact Bombardier to make arrangements for automated data submission.
604−27−039 01
COMPLIED WITH
YES NO N/A PART A PART B Actual hours to accomplish Service Bulletin:
* NOTES:
Aircraft Serial No. Aircraft Reg. No.
Airframe Hours: Airframe Landings S.B. Incorporation Date Service Order No.
Facility incorporating S.B.
Name Signature Date
BOMBARDIER
SUBMISSION Service Bulletin Number Rev. * Parts Completed Remarks/Reason (Mandatory if N/A)
1. Where the Service Bulletin is divided into a number of parts (e.g., PARTS A, B, C, D, etc.) which can be carried out separately, indicate only those parts completed at this time.
2. For repetitive checks (usually PART A) only the initial check should be reported unless otherwise stated in the Service Bulletin.
3. When more than one part is carried out at the same time, each part should be reported.
4. Fill in ’Remark/Reason’ to explain compliance method when N/A is selected.(E.g. Part not installed, N/A by effectivity, N/A by Part Serial Number, etc.
5. PCW means ’Previously Complied With’.
(dd/mm/yy) Signature not required if sent by E−Mail (dd/mm/yy)