Basic Issue: Oct 31/2013 

# 100-27-16 Page 1 of 1 

# SERVICE BULLETIN SUMMARY

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

### MODEL BD-100-1A10 (CL-300) ATA 27-61 FLIGHT CONTROLS

SPECIAL CHECK/MODIFICATION – CO NTROL AND INDICATION SYSTEM – SOFTWARE CHANGE TO IMPROVE SPOIL ER ELECTRONIC CONTROL UNIT (SECU) RELIABILITY AND TO ELIMI NATE A NON-COMPLIANCE IN THE ROLL DISCONNECT LOGIC 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
Before 31 Oct 2018

EFFECTIVITY: A/C Serial No. 20003 to 20407

MANPOWER: 4 man-hours are necessary to upgrade one SECU. 6 man-hours are necessary to upgrade two SECUs. 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: SB 100-27-09 is a prerequisite and must be done before or at the same time as this Service Bulletin.

NOTE : This Service Bulletin is expected to become the subject of an Airworthiness Directive which will make it necessary to implement this Service Bulletin.
To place an order for parts or 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 manufacturer’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. © 2013 Bombardier Inc. All rights reserved Learjet, Challenger, Global, are registered trademarks of Bombardier Inc. or its subsidiaries.
Basic Issue: Oct 31/2013 

# 100-27-16 Page 1 of 8 

# SERVICE BULLETIN

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

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

ATA 27-61
FLIGHT CONTROLS

SPECIAL CHECK/MODIFICATION – CO NTROL AND INDICATION SYSTEM – SOFTWARE CHANGE TO IMPROVE SPOIL ER ELECTRONIC CONTROL UNIT (SECU) RELIABILITY AND TO ELIMI NATE A NON-COMPLIANCE IN THE ROLL DISCONNECT LOGIC



### 1. PLANNING INFORMATION
NOTE : This Service Bulletin also includes In structions for SECUs in the operator’s stockroom. A. Effectivity BD-100-1A10 aircraft, Serial No. 20003 to 20407

. All other subsequent BD-100-1A10 aircraft are scheduled for the modification in production (Ref.: Modification Summary 100T010596). 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 Aerospace 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.MODEL BD-100-1A10 (CL-300)

Basic Issue: Oct 31/2013 

# 100-27-16 Page 2 of 8 B. Reason As the throttle lever is moved slowly fr om “AT IDLE” position, the throttle quadrant assembly (TQA) switch will pass through an i ndeterminate state. If the duration of the indeterminate state is more than the Spoiler Systems monitor threshold, a cyan “SPOILERS FAULT” or an amber “ SPOILERS FAIL” Engine Indication and Crew Alerting System (EICAS)” message will be posted by the Spoiler System. The SECU software has been improved to disable TQA switch monitoring when the Throttle Lever is in the range of the switch’s intermediate state. Also, an extremely unlikely timing difference between Command and Monitor channels, coupled with an intermittently failed Roll Disconnect Switch, could cause the complete loss of spoiler functionality. This Service Bulletin introduces a modification to the SECU software to correct this timing error and prevent the loss of both SECUs under these conditions thus maintaining spoiler functionality. C. Description This Service Bulletin gives instructions to:

–Get access to the SECU,

–Verify the SECU Part Number,

–Remove the SECU if necessary,

–Upgrade the SECU software if necessary,

–Reidentify the upgraded SECU if necessary,

–Install the upgraded SECU if necessary, and

–Do the necessary tests to make sure that the system operates correctly. D. Compliance Recommended to be incorporated before 31 Oct 2018. 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 in accordance with established procedures.MODEL BD-100-1A10 (CL-300)

Basic Issue: Oct 31/2013 

# 100-27-16 Page 3 of 8 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 Par agraph 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. 4 man-hours are necessary to upgrade one SECU. 6 man-hours are necessary to upgrade two SECUs. The labor required to do this Service Bulletin is at no cost if: (i) the work is done during new aircraft warranty period, and (ii) the work is done at Bombardier Business Aviation Services (BBAS) or Authorized Service Facilities (ASF), and (iii) this Service Bulletin is scheduled within the compliance time. G. Material - Cost and Availability No kit is necessary to do this modificati on. For the parts necessary to do this modification on SECU Part No. C47330-006, C47330-007 or C47330-008, refer to Paragraph 3.B. These parts are available at no cost if a no-charge purchase order is sent to Bombardier Aerospace within the compliance time. For SECUs, Part No, C47330-006, C47330- 007 and C47330-008 in the operator’s stock room, send units for upgrade by Moog, to Bombardier Aerospace at one of the two addresses given below: Learjet – Core Returns 8219 West Irving, Bldg 9, Dock 9, Wichita, KS 67209 USA
or Distribution Centre Frankfurt – Core Returns Bombardier Aerospace Germany GmbH Hans-Boeckler-Strasse 9 GROSS-GERAU Hesse 64521 GermanyMODEL BD-100-1A10 (CL-300)

Basic Issue: Oct 31/2013 

# 100-27-16 Page 4 of 8 Refer to your Material Return Author ization (MRA) form to find the applicable return address. During or after the above free period, Smar t Parts Plus does not pay for the parts required to complete this software change. H. Tooling The equipment and tools listed below are necessary to do this modification:

GSE REFERENCE NO. PART NO. DESCRIPTION
20X-00-04 M1-G-KIT or equivalent Portable Bonding Tester

24-00-24 S4933959-501 Tag, Circuit Breaker - CB59838-001 Wire Harness (Note 3) - CB60286-001 Software, CDROM (Note 3) Commercially Available - Laptop with Windows XP or Windows 7 operating system, an RS-232 Serial or USB 2.0 Port, a USB-to-Serial adapter cable and a CD drive. Commercially Available - Power Supply (28Vdc and 2A)
NOTES : 1. Refer to the BD-100 Illustrat ed 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 acceptable GSE equivalents. 3. The wire harness and CDROM necessary to complete this Service Bulletin will be available at each BAS and from Bombardier Aerospace Parts Services for rental. I. Weight and Balance No change. J. Electrical Load Data No change.MODEL BD-100-1A10 (CL-300)

Basic Issue: Oct 31/2013 

# 100-27-16 Page 5 of 8 K. References

–Bombardier Aerospace, Modification Summary, 100T010596, Rev. C.

–Bombardier Aerospace, Modification Summary, BB100T010721, Rev. A.

–Bombardier Aerospace, Restriction and/or Special Instruction (RSI), C-100-000-27-0300, Rev. --1.

–Bombardier Aerospace, Kit Drawing K1000070295, Rev. --.

–Bombardier Aerospace, Standard Pr actices Manual (SPM), Chapter 51.

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

–Bombardier Aerospace, SB 100-27-09, Re v. 02 “Modification – Multi-Function Spoiler – Introduction of the Spoiler Elec tronic Control Unit (SECU) Part No. C47330-006 or C47330-007”.

–BD-100 Aircraft Maintenance Manual (AMM), Chapters 6, 24, 27 and 51.

–BD-100 Aircraft Illustrated Part s Catalog (AIPC), Chapter 27.

–Moog, Service Bulletin C47330-27-02, Rev. 1 “Flight Controls: Spoiler Electronic Control Unit (SECU) Software Upgrade” (attached).

–Moog, Service Bulletin C47330-27-03, Rev. 1 “Flight Controls: Spoiler Electronic Control Unit (SECU) Software Upgrade” (attached).

–Moog, Service Bulletin C47330-27-04, Rev. 1 “Flight Controls: Spoiler Electronic Control Unit (SECU) Software Upgrade” (attached). L. Other Publications Affected BD-100 Aircraft Illustrated Part s Catalog (AIPC), Chapter 27. M. Equivalent Service Bulletins None.MODEL BD-100-1A10 (CL-300)

Basic Issue: Oct 31/2013 

# 100-27-16 Page 6 of 8 

### 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 safety pr ecautions. Refer to TASK 24-00-00-910-802. B. PART A – Inspection of SECU A118 and SECU A119 Verify the part number of SECU A118 and SECU A119.

NOTES : 1. The SECU A118 and SECU A119 are located in the right equipment rack. Refer to TASK 27-61-00-992-801. 2. For SECU Part No. C47330-006, C47330-007 or C47330-008 in the operator’s stock room, refer to Paragraph 1.G. for disposition. (a) For aircraft with SECU Part No. C47330-006, C47330-007 or C47330-008, continue with PART B of this Service Bulletin. (b) For aircraft with SECU Part No. C47330-009, C47330-010 or C47330-011, continue with Close-out. C. PART B – Modification of SECU, Part No. C47330-006, C47330-007 or C47330-008 CAUTION : OBEY ALL ELECTROSTATIC DISCHARGE SAFETY PRECAUTIONS WHEN YOU DO MAINTENANCE ON ELECTROSTATIC DISCHARGE SENSITIVE (ESDS) COMPONENTS. STATIC VOLTAGE CAN CAUSE DAMAGE TO ESDS COMPONENTS. (1) Remove SECU A118 and/or SECU A119 as necessary. Refer to TASK 27-61-05-000-801. (2) Incorporate the applicable Moog Service Bulletin as follows: SECU Part No. Moog Service Bulletin.

C47330-006 C47330-27-02 C47330-007 C47330-27-03 C47330-008 C47330-27-04 (3) Re-identify the upgraded SECU per t he related Moog Service Bulletin. (4) Install the upgraded SECU A118 and/or SECU A119 as necessary. Refer to TASK 27-61-05-400-801.MODEL BD-100-1A10 (CL-300)

Basic Issue: Oct 31/2013 

# 100-27-16 Page 7 of 8 (5) Do the electrical bonding of the SECU A118 and/or SECU A119. Refer to SPM TASK 51-80-00-760-801. NOTE : The maximum allowable resistance is 5 milliohms between the avionics rack and the bare screws at the bottom of the front face of the SECU. D. Testing (1) Do the electronic rigging of the SECU A118 and/or SECU A119 as necessary. Refer to TASK 27-61-05-820-802. (2) Do the operational test of the spoiler system. Refer to TASK 27-61-00-710-801.
E. Close-out Remove all tools, equipment and unwanted materials from the aircraft. F. 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.com


### 3. MATERIAL INFORMATION

A. Kit No kits required.
B. Parts The parts that follow are necessary to do this Service Bulletin and are available from Bombardier Aerospace Parts Services, Montreal.

NEW PART NO. QTY ITEM USED PART NO. INSTRUCTIONS - DISPOSITION
CB68209-001
or CB68210-001
or CB68211-001 2 Label (Note 1)
Label (Note 2)
Label (Note 3) - -

NOTES : 1. For SECU, Part No, C47330-006, upgraded to Part No. C47330-006A. 2. For SECU, Part No, C47330-007, upgraded to Part No. C47330-007A. 3. For SECU, Part No, C47330-008, upgraded to Part No. C47330-008A.MODEL BD-100-1A10 (CL-300)

Basic Issue: Oct 31/2013 

# 100-27-16 Page 8 of 8 C. Material The materials that follow are necessary to do this Service Bulletin. These can be purchased from a local supplier. Bombardier Aerospace does not pay for these consumables.

DESCRIPTION PART No./NAME SPECIFICATION QUANTITY SUPPLIER (See Note) Isopropyl Alcohol - TT-I-735 As Necessary Code: A

Sealant CT: 5 hours

or Clear Coat - MIL-V-173C
or A38662-20 or equivalent As Necessary Code: A

NOTES : 1. Refer to the table that follows for the supplier’s address listed by code. 2. 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 No publications required.

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

SERVICE BULLETIN: 100-27-16 ISSUE: Basic DATED: Oct 31/2013

TITLE: Special Check/Modification – Control and I ndication System – Software Change to Improve Spoiler Electronic Control Unit (SECU) Reliability and to Eliminate a Non-Compliance in the Roll Disconnect Logic

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 – “100-27-16”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 Bombardier to make arrangements for automated data submission.

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

100-27-16 Basic PART A
“ “ PART B

- - -

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

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