Basic Issue: Nov 26/2012 

# 100-24-23 Page 1 of 1 

# SERVICE BULLETIN SUMMARY

This Service Bulletin is available at: www.cic.bombardier.com 

### MODEL BD-100-1A10 (CL-300)

ATA 24-61 and 24-64
ELECTRICAL POWER

REWORK – DC POWER CENTER (DCPC) SYSTEM – REWORK OF THE DCPC COVERS The information below is provided for y our reference. For full details, please see corresponding paragraph contained within this bulletin. 

# RECOMMENDED

SPECIFIED TIME COMPLIANCE 

## COMPLIANCE TIME Within 800 flight hours from from SB release date (Basic Issue)

EFFECTIVITY: A/C Serial No. 20003 to 20405

MANPOWER: 7 man-hours CONTINUED AIRWORTHINESS (CAW) FLEET CAMPAIGN YES NO

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

NOTES : 1. This Service Bulletin is currently being offered as part of the Challenger 300 MAX Program. See Paragraph 1 for details.
2. This Service Bulletin is expected to be the subject of an Airworthiness Directive which will make it necessary to implement this Service Bulletin.

To place an order for kits, please call Bombardier Aerospace Parts Services at:
514-855-2999 or 1-866-538-1247Refer to applicable governmental agency regulations and requirements and make sure that the work described in this Service Bulletin is performed in compliance with manufac turer’s recommendations and/or acceptable industry standards. This document is proprietary to Bombardi er 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. © 2012 Bombardier Inc. All rights reserved Challenger*, Global Express*, Global Express XRS *, Global 5000*, Learjet* are Trademarks of Bombardier Inc.
Basic Issue: Nov 26/2012 

# 100-24-23 Page 1 of 9 

# SERVICE BULLETIN

This Service Bulletin is available at: www.cic.bombardier.com 

### MODEL BD-100-1A10 (CL-300)

ATA 24-61 and 24-64
ELECTRICAL POWER

REWORK – DC POWER CENTER (DCPC) SYSTEM – REWORK OF THE DCPC COVERS



### 1. PLANNING INFORMATION
NOTES : 1. To reduce aircraft downtime, it is suggested to incorporate this Service Bulletin with the Service Bulle tins that follow, if applicable:

SB 100-24-12 SB 100-24-15 SB 100-24-17 SB 100-24-18 SB 100-24-20 SB 100-24-19 SB 100-24-22 2. This Service Bulletin is also app licable to the DCPCs in the operator’s stock room. 3. This Service Bulletin is currently being offered as part of the Challenger 300 MAX Program. Bombardier recommends that this m odification be incorporated at your next convenient downtime. Bombardier recommends contacting your In-Service Implementation Team (ISIT) representative as soon as is practical to schedule your aircraft at the following email address: CL300_MAX@aero.bombardier.com

.MODEL BD-100-1A10 (CL-300)

Basic Issue: Nov 26/2012 

# 100-24-23 Page 2 of 9 A. Effectivity BD-100-1A10 aircraft, Serial No. 20003 to 20405

. NOTES : 1

. All other subsequent BD-100-1A10 aircraft are scheduled for the modification in production (Ref.: Modification Summary 100T010680). 2. The instructions in this Service Bulletin are only applicable to the systems and parts installed at the ti me of delivery of the aircraft or as changed by Bombardier Service Bulletin(s). Before you do this bulletin, examine all STC, STA or equivalent action changes to make sure that this bulletin can be completed.
B. Reason The flexibility of the existing front co vers of the left DCPC, right DCPC and auxiliary DCPC does not guarantee that the printed circuit boards (PCBs) are correctly inserted in the motherboard. If a PCB is not installed fully in the motherboard, it can possibly stay in that condition after the cover is installed. This can cause loss of communication and functional defects. This Service Bulletin reworks the covers to a re-enforced design which prevents deflection. C. Description This Service Bulletin gives instructions to:

–Get access to DCPCs,

–Do the Zodiac Aerospace Service Bulletin No. 975GC02Y-24-013, for the LH DCPC,

–Do the Zodiac Aerospace Service Bulletin No. 970GC02Y-24-013, for the RH DCPC,

–Do the Zodiac Aerospace Service Bulletin No. 320GC03Y-24-012, for the auxiliary DCPC D. Compliance Recommended within 800 flight hours 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 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 the JAA and by EASA in accordance with established procedures.MODEL BD-100-1A10 (CL-300)

Basic Issue: Nov 26/2012 

# 100-24-23 Page 3 of 9 F. Manpower NOTES : 1. The man-hours given are estimates to help you schedule the tasks given in this bulletin. The estimate s 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 t he manpower estimates, refer to SB 100-00-02. 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. 7 man-hours are necessary to do this rework. The labor required to do this Service Bulletin is at no cost if: (i) the work is done at Bombardier Business Aviation Services (BBAS) or an Approved Service Facility (ASF), and (ii) this Service Bulletin is schedul ed in less than 24 months from its release date (Basic Issue). G. Material - Cost and Availability Kits 100K24-23, 100K24-23A and 100K24-23B are necessary to do this modification. Only the U.S. domestic prices are shown:

KIT NO. PRICE 100K24-23 $798.00 100K24-23A $385.00 100K24-23B $385.00 The above prices can change. For the pric es outside of the U.S., refer to the last applicable Spare Parts Price Catalog. This data is also available from Bombardier Business Aviation Services (BBAS) at the addresses shown in the catalog. These kits are available at no cost for an extended period of 24 months from this Service Bulletin release date (Basic Issue) if a no-charge purchase order is sent to Bombardier Aerospace. This Service Bulletin is covered by a dedicated schedule. To ensure a timely and effective return/upgrade program, adv ance scheduling is required through our In-Service Implementation Team (ISIT). Please contact your Regional Manager (RM), Field Service Representative (FSR ) or Customer Service Representative (CSR) as soon as is practical to schedule your aircraft. During or after the above free period, Smart Parts Plus does not pay for the kit(s).MODEL BD-100-1A10 (CL-300)

Basic Issue: Nov 26/2012 

# 100-24-23 Page 4 of 9 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 - OUT245 (Zodiac) Drilling Fixture Kit (See NOTE 2) - OUT247 (Zodiac) Drilling Fixture Kit (See NOTE 2) - OUT248 (Zodiac) Drilling Fixture Kit (See NOTE 2) - Commercially Available Punch, 8 mm (0.312 in dia.) - Commercially Available Rivet Gun - Commercially Available Screwdriver, Torque - Commercially Available Hex Bit, 2.5 mm
NOTES : 1. Refer to the BD-100 Illustrated Tool and Equipment Manual to make sure that you use the correct equipment configuration. 2. The drilling fixture kits are av ailable at all BAS Centers and through Bombardier Parts Services. 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

WEIGHT MOMENT + 1.79 pounds (0.81 kg) +1239.13 pound-inches (17.1 kgm)

J. Electrical Load Data No change.MODEL BD-100-1A10 (CL-300)

Basic Issue: Nov 26/2012 

# 100-24-23 Page 5 of 9 K. References

–Bombardier Aerospace, Modifica tion Summary, BB100T010680, Rev. A-1.

–Bombardier Aerospace, Modification Summary, 100T010680, Rev. A.

–Bombardier Aerospace, Restriction and/or Special Instruction (RSI), C-100-000-24-0094, Rev. A-1.

–Bombardier Aerospace, Standard Pr actices Manual (SPM), Chapter 20.

–Bombardier Aerospace, Kit Drawing K1000070289, Rev. --.

–Zodiac Aerospace, Service Bulletin No. 320GC03Y-24-012 (attached).

–Zodiac Aerospace, Service Bulletin No. 970GC02Y-24-013 (attached).

–Zodiac Aerospace, Service Bulletin No. 975GC02Y-24-013 (attached).

–BD-100 Aircraft Maintenance Manual (AMM), Chapters 6, 24 and 52.

–BD-100 Aircraft Illustrated Part s Catalog (AIPC), Chapter 24.

–Bombardier Aerospace, SB 100-00-02, “Service Bulletin Description and Policy”.

–Bombardier Aerospace, SB 100-24-08, “Modification – DC Power Center (DCPC) System – Replacement of Print ed Circuit Boards in the Left, Right and Auxiliary DCPC.

–Bombardier Aerospace, SB 100-24-12, “Modification – DC Power Center (DCPC) System – Replacement of Print ed Circuit Boards in the Left, Right and Auxiliary DCPC from Part No. 320GC03Y04, 970GC02Y04 and 975GC02Y04 to Part No. 320GC03Y06, 970GC02Y06 and 975GC02Y06.

–Bombardier Aerospace, SB 100-24-15, “Modification – DC Power Center (DCPC) System – Replacement of Print ed Circuit Boards in the Left, Right and Auxiliary DCPC from Part No. 320GC03Y05, 970GC02Y05 and 975GC02Y05 to Part No. 320GC03Y06, 970GC02Y06 and 975GC02Y06.

–Bombardier Aerospace, SB 100-24-17, “Modification – Primary DC Power System – Replacement of Left, Right and Auxiliary Generator Power Module, Part No. R3608-011 without Amendment G.

–Bombardier Aerospace, SB 100-24-18, “Modification – Primary DC Power System – Replacement of Left, Right and Auxiliary Generator Control Unit, Part No. R3608-004 without the Letter “A” Added to the Serial Number.

–Bombardier Aerospace, SB 100-24-20, “Special Check/Modification – DC Power Center (DCPC) System – Inspec tion and Replacement of Internal Fuses in the L/H and R/H DC Power Center (DCPC).

–Bombardier Aerospace, SB 100-24-22, “Mo dification – DC Power Center (DCPC) System – Introduction of a Metal Backplate for the Left and Right DCPC.
L. Other Publications Affected BD-100 Aircraft Illustrated Part s Catalog (AIPC), Chapter 24. M. Equivalent Service Bulletin None.MODEL BD-100-1A10 (CL-300)

Basic Issue: Nov 26/2012 

# 100-24-23 Page 6 of 9 

### 2. ACCOMPLISHMENT INSTRUCTIONS
NOTES : 1. All TASKs given in the procedur es that follow are from the BD-100 Aircraft Maintenance Manual unless otherwise specified. 2. All references made to zones, access panels and/or doors, are from the BD-100 Aircraft Maintenance Manual, Chapter 6. A. Aircraft Setup (1) Obey all electrical/electronic safety precautions. Refer to TASK 24-00-00-910-801. (2) Obey all electrostatic-discharge safety precautions. Refer to Task 24-00-00-910-802. (3) Disconnect the batteries. Refer to TASK 24-32-00-040-801. (4) Open the aft equipment-compartment door 182 GL. Refer to TASK 52-41-00-010-801.
B. Modification (1) Do the rework of the LH DCPC as instructed in the Zodiac Aerospace, Service Bulletin No. 975GC02Y-24-013, using the parts supplied in Kit 100K24-23B. (2) Do the rework of the RH DCPC as instructed in the Zodiac Aerospace, Service Bulletin No. 970GC02Y-24-013, using the parts supplied in Kit 100K24-23A. (3) Do the rework of the auxiliary DCPC as instructed in the Zodiac Aerospace, Service Bulletin No. 320GC03Y-24-012, using the parts supplied in Kit 100K24-23. (4) Connect the batteries. Refer to TASK 24-32-00-440-801.
C. Close-out Close the aft equipment-compartment door 182 GL. Refer to TASK 52-41-00-410-801. D. 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). In an effort to improve the quality of our technical communications, we are requesting your feedback. Please take a moment to fill out our easy on-line Service Bulletin survey: http://csefeedback.aero.bombardier.comMODEL BD-100-1A10 (CL-300)

Basic Issue: Nov 26/2012 

# 100-24-23 Page 7 of 9 

### 3. MATERIAL INFORMATION

A. Kit Kit 100K24-23 is necessary to do this Service Bulletin on the Auxiliary DCPC and contains the part that follows:

NEW PART NO. QTY ITEM USED PART NO. INSTRUCTIONS - DISPOSITION
GC0003033Y00 1 Zodiac Kit - -
Kit100K24-23A is necessary to do this Service Bulletin on the RH DCPC and contains the part that follows:

NEW PART NO. QTY ITEM USED PART NO. INSTRUCTIONS - DISPOSITION
GC0003076Y00 1 Zodiac Kit - -
Kit 100K24-23B is necessary to do this Service Bulletin on the LH DCPC and contains the part that follows:

NEW PART NO. QTY ITEM USED PART NO. INSTRUCTIONS - DISPOSITION
GC0003077Y00 1 Zodiac Kit - -
NOTES : 1. In case of discrepancy between this list and the “Service Bulletin Kit Parts List” contained in the respective kit, then the latter list prevails. 2. The actual quantity for some of the hardware contained in the kit can be greater than the amount shown in the table as these items are supplied in prepackaged quantities.
B. Parts No parts required.MODEL BD-100-1A10 (CL-300)

Basic Issue: Nov 26/2012 

# 100-24-23 Page 8 of 9 C. Material The materials that follow, or equivalent, ar e necessary to do this Service Bulletin. These can be purchased from a local supplie r. Bombardier Aerospace does not pay for these consumables.

DESCRIPTION PART No./NAME SPECIFICATION QUANTITY SUPPLIER (See Note) Alcohol, Ethyl
or Alcohol, Isopropyl -

- MIL-STD-1201

TT-I-735 As Necessary Code: A

Threadlock CT: 6 hrs. Loctite 222 Grade E - As Necessary Code: A
Varnish, Red

CT: 6 hrs. Loctite 7400 - As Necessary Code: A

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.

SUPPLIERS ADDRESSES BY CODES

Code: A Commercially Available

D. Publications No publications required.MODEL BD-100-1A10 (CL-300)



## PL K1000070289

– Kit – DCPC Front Cover Rework (Sheet 1 of 1, Rev. --)
Basic Issue: Nov 26/2012 

# 100-24-23 Page 9 of 9 SB100-24-061-0289-NC-S1

### SERVICE BULLETIN EVALUATION FORM (Your ideas will help us provide better bulletins)

SERVICE BULLETIN: 100-24-23 ISSUE: Basic DATED: Nov 26/2012

TITLE: Rework – DC Power Center (DCPC) S ystem – Rework of the DCPC Covers

In an effort to improve the quality of our technical communications, we are replacing the standard Service Bulletin Evaluation Form with an on-line Service Bulletin Survey and we are requesting your feedback. Pl ease take a moment to fill out our easy on-line Service Bulletin survey:



### http://csefeedback.aero.bombardier.com

## SERVICE BULLETIN INCORPORATION SHEET – “100-24-23”BOMBARDIERSUBMISSION 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 your aircraft is registered on CAMP and you are reporting to them, please do not send the incorporation sheet to Bombardier. If your aircraft is on another tracking system, please contact Bombardi er to make arrangements for automated data submission.

COMPLIED WITH Service Bulletin Number Rev. * Parts Completed YES NO N/A Remarks/Reason

100-24-23 Basic -

- - -

- - -

Actual hours to accomplish Service Bulletin:

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. * NOTES :

3. When more than one part is carried out at the same time, each part should be reported.

Aircraft Serial No. Aircraft Reg. No. Airframe Hours: Airframe Landings S.B. Incorporation date Service Order No. (dd/mm/yy) Facility Incorporating S.B.
Name Signature Date (dd/mm/yy) Signature not required if sent by E-Mail-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --



### Bombardier Business Aircraft Customer Services (BBACS) P.O. Box 6087, Station Centre-ville Montreal, Québec, Canada H3C 3G9

Attention : Customer Support Department, Maintenance Engineering

-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --