Bombardier Service Bulletin 605-32-009

SPECIAL CHECK/MODIFICATION – NOSEWHEEL STEERING –

REPLACEMENT OF ELECTRONIC CONTROL MODULE (ECM) 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. 5701 to 5990 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 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.

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 32−51

LANDING GEAR Basic Issue: Oct 18/2021 605−32−009 Page 1 of 1 This Service Bulletin is available at:

SPECIAL CHECK/MODIFICATION – NOSEWHEEL STEERING –

REPLACEMENT OF ELECTRONIC CONTROL MODULE (ECM)

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. They can be reached at bacs_isit@aero.bombardier.com. The parts will be allocated on a first come first serve basis.

Should you require additional information, please contact your Regional Sales Manager (RM) or Field Service Representative (FSR).

For more information on dedicated schedules, refer to SB 605−00−002.

3. This Service Bulletin is also applicable for Electronic Control Module (ECM), Part No. 601−86100−27 (MDI Part No. 7040−19) in the operator’s stock room.

A. Effectivity CL−600−2B16 aircraft, Serial No. 5701 to 5990.

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).

SERVICE BULLETIN my.businessaircraft.bombardier.com MODEL CL−600−2B16 ATA 32−51

LANDING GEAR 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 Bombardier Inc. All rights reserved Learjet, Challenger, Global, are registered trademarks of Bombardier Inc. or its subsidiaries.

Basic Issue: Oct 18/2021 605−32−009 Page 1 of 9 This Service Bulletin is available at:

TABLE 1 – SERIAL NUMBERS OF AFFECTED ELECTRONIC CONTROL

MODULE (ECM) PART NO. SERIAL NUMBERS 601−86100−27 (MDI, Part No. 7040−19) 14022867, 14028024, 17053913, 17053914, 17055007, 17055008, 18058182, 18058183, 18058603, 18058604, 18059639, 18059640, 18060725, 18060726, 18061882, 18061883, 18063372, 18063373, 18065333, 18065334, 18065335, 19068029, 19068030, 19068031, 19068032, 19068034, 19068035, 19068036, 19068037, 19068038, 19068039, 19068040, 19068041, 19068042, 19068043, 19068044, 20077629, 20077630, 20077631 and 20077634.B.

Reason

1. Condition:

The existing ECM fitted with AEF filter plate is susceptible under HIRF, Radio Frequency Susceptibility (Conducted & Radiated). This can result in a potential malfunction of the Nose Wheel Steering (NWS) System.

2. Objective/Benefit:

This Service Bulletin introduces a procedure to inspect and to identify the serial numbers of all ECM Part No. 601−86100−27 (MDI Part No. 7040−19) fitted with the AEF filter plate which shall be replaced with ECM units fitted with the Spectrum Filter Plate.

C. Description This Service Bulletin gives instructions in PART A, to:

− Examine the serial number of existing ECM with the affected list per Paragraph 1.A., Table 1, − If the serial number of the ECM is not in the affected list or is re−identified as SB−1, no further action is necessary. Go to Paragraph 2.E., Close−out, and − If the serial number of the ECM is in the affected list, do PART B of this Service Bulletin to replace the existing ECM.

This Service Bulletin gives instructions in PART B, to:

− Remove the ECM, − Return the removed ECM for a new or upgraded unit, and − Install the ECM.

MODEL CL−600−2B16 Basic Issue: Oct 18/2021 605−32−009 Page 2 of 9

After PART B, as applicable:

− Do the necessary tests to make sure that the system operates correctly.

D. Compliance Specified Time Compliance Recommended within 35 months 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.

Standard SRPSA fees may apply. Refer to the Services section of the Bombardier customer portal for the latest prices, rates and fees.

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 NOTE: 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 605−00−002.

0.5 man−hour is necessary to do PART A of this Service Bulletin.

Bombardier Aviation does not pay for the labor to do PART A of this Service Bulletin.

5 man−hours are necessary to do PART B of this Service Bulletin.

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 35 months from its release date (Basic Issue).

MODEL CL−600−2B16 Basic Issue: Oct 18/2021 605−32−009 Page 3 of 9

G. Material − Cost and Availability No kit is necessary to do this Service Bulletin.

ECM, Part No. 601−86100−27, may be necessary to do this modification and is available at no cost if a no−charge purchase order is sent to Bombardier Aviation in less than 35 months from this Service Bulletin release date (Basic Issue).

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. They can be reached at bacs_isit@aero.bombardier.com. The parts will be allocated on a first come first serve basis.

Should you require additional information, please contact your Regional Sales Manager (RM) or Field Service Representative (FSR).

For more information on dedicated schedules, refer to SB 605−00−002.

Send the removed ECM, Part No. 601−86100−27, fitted with AEF filter plate to either of the addresses shown below in exchange for a new or a reworked ECM, Part No. 601−86100−27, fitted with spectrum filter plate.

Learjet Inc. − Core Returns 251−A Wille Road Des Plaines, Illinois 60018−1861 USA or Distribution Centre Frankfurt − Core Returns Bombardier Aviation Company GmbH Hans−Boeckler−Strasse 9 GROSS−GERAU Hesse 64521 Germany Refer to your Material Return Authorization (MRA) form to find the applicable return address.

NOTE: Bombardier Aviation is maintaining a rotable pool of replacement ECM to be supplied to the operators under the terms and conditions given below:

− The removed ECM must be returned to Bombardier Aviation, Parts Services in less than 10 days for domestic shipments and 15 days for international shipments of receipt of replacement unit.

− If the removed ECM is not returned within the time period, the operator will be charged for the replacement units at full cost.

MODEL CL−600−2B16 Basic Issue: Oct 18/2021 605−32−009 Page 4 of 9

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 Service Bulletin:

GSE REFERENCE NO. PART NO. DESCRIPTION 24−00−24 S4933959−501 Tag, Circuit Breaker Commercially Available − Wrench, Torque 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.

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−4273, Rev. A.

− Safran Landing Systems, Service Bulletin No. SB7040−32−001 (attached).

− CL−605 Aircraft Maintenance Manual (AMM), Chapters 6, 12, 24, 32 and 53.

L. Other Publications Affected − CL−605 Aircraft Illustrated Parts Catalog (AIPC), Chapter 32.

M. Equivalent Service Bulletins − For the Challenger 604 aircraft, use Service Bulletin 604−32−032.

MODEL CL−600−2B16 Basic Issue: Oct 18/2021 605−32−009 Page 5 of 9

− For the Challenger 650 aircraft, use Service Bulletin 650−32−006.

2. ACCOMPLISHMENT INSTRUCTIONS NOTES: 1. All TASKs given in the procedures that follow are from the CL−605, Aircraft Maintenance Manual unless otherwise specified.

2. All references made to zones, access panels and/or doors, are from the CL−605, Aircraft Maintenance Manual, Chapter 6.

A. Aircraft Setup

(1) Obey all electrical/electronic safety precautions. Refer to AMM 24−00−00−910−801.

(2) Remove the external AC power. Refer to AMM 12−00−07−861−802.

(3) Open and tag the circuit breakers that follow:

CB PANEL CB NO. NAME ZONE CBP−1 F6 NOSE STEER 221 CBP−2 F6 NOSE STEER 222

(4) Remove the flight compartment floor−panel (221CLF). Refer to AMM 53−01−01−000−801.

B. PART A — Special Check 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) Examine the serial number of the ECM, Part No. 601−86100−27 (MDI, Part No. 7040−19), with the affected list in Paragraph 1.A., TABLE 1.

(a) If the serial number of the ECM is not in the affected list or is re−identified as SB−1, no further action is necessary. Go to Paragraph 2.E., Close−out.

(b) If the serial number of the ECM is in the affected list, do PART B of this Service Bulletin.

C. PART B — Modification 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) Remove the ECM, Part No. 601−86100−27. Refer to AMM 32−51−31−000−801.

(2) Send the removed ECM, Part No. 601−86100−27 (MDI, Part No. 7040−19), for rework to the address shown in Paragraph 1.G.

MODEL CL−600−2B16 Basic Issue: Oct 18/2021 605−32−009 Page 6 of 9

(3) Install a new or the reworked ECM, Part No. 601−86100−27 (MDI, Part No. 7040−19), fitted with spectrum filter plate. Refer to AMM 32−51−31−400−801.

NOTES: 1. If a new ECM is used, make sure that the serial number of new ECM is not in the affected list shown in TABLE 1.

2. If a reworked ECM is used, make sure that the ECM is re−identified as SB−1, in the nameplate. Refer to Figure 1.

3. If necessary, it is permissible to use any other ECM other than Part No. 601−86100−27 valid for the aircraft model.

D. Testing

(1) Remove the tags and close the circuit breakers that follow:

CB PANEL CB NO. NAME ZONE CBP−1 F6 NOSE STEER 221 CBP−2 F6 NOSE STEER 222

(2) Do the operational test of the nosewheel−steering system. Refer to AMM 32−51−00−710−801.

E. Close−out

(1) Remove all tools, equipment and unwanted materials from the aircraft.

(2) Install the flight compartment floor−panel (221CLF). Refer to AMM 53−01−01−400−801.

F. Stock Purge

(1) Verify the Serial No. of all spare ECM units with Part No. 601−86100−27 (MDI Part No. 7040−19) per Paragraph 1.A., TABLE 1.

(2) If the ECM is affected, do Paragraph 2.C. of this Service Bulletin.

NOTE: The instructions above are applicable to Bombardier Business Aviation Services (BBAS), Completion Centers, Authorized Service Facilities, Spare Parts Center, Montreal, and operator’s stock rooms.

G. Recording When 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).

MODEL CL−600−2B16 Basic Issue: Oct 18/2021 605−32−009 Page 7 of 9

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.

B. Parts The part that follows may be necessary to do this Service Bulletin and is available from Bombardier Aviation Parts Services, Montreal:

NEW PART NO. QTY ITEM USED PARTNO. INSTRUCTIONS- DISPOSITION 601−86100−27 (See Notes) 1 Electronic Control Module (ECM) 601−86100−27 Refer toParagraph 1.G.

NOTES: 1. 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.

2. If a new ECM is used, make sure that the serial number of new ECM is not in the affected list shown in TABLE 1.

3. If a reworked ECM is used, make sure that the ECM is re−identified as SB−1, in the nameplate. Refer to Figure 1.

4. If necessary, it is permissible to use any other ECM other than Part No. 601−86100−27 valid for the aircraft model.

C. Material No materials required.

D. Publications The publication that follows is required after this Service Bulletin has been incorporated.

− CL−605 Aircraft Illustrated Parts Catalog (AIPC), Revision 61 dated Aug 27/2021 or later approved revisions as applicable.

MODEL CL−600−2B16 Basic Issue: Oct 18/2021 605−32−009 Page 8 of 9

SB650−32−006_001 7040−19

ELECTRONIC CONTROL MODULE

P/N S/N DATE INSP Safran Electronics & Defense Canada Peterborough Ontario Canada CAGE L8794

CANADAIR

SLS P/N

SEDC P/N SB−1 601−86100−27 22000−05 22221−11 MODEL CL−600−2B16 ECM 601−86100−27 (7040−19) Nameplate Marking Figure 1 Basic Issue: Oct 18/2021 605−32−009 Page 9 of 9

605−32−009 Basic Oct 18/2021 SPECIAL CHECK/MODIFICATION – NOSEWHEEL STEERING –

REPLACEMENT OF ELECTRONIC CONTROL MODULE (ECM) 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 − "605−32−009" 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.

605−32−009 Basic

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)