Basic Issue: Sep 26/2013 

# 601-0631 Page 1 of 1 

# SERVICE BULLETIN SUMMARY

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

### MODEL CL-600-2A12 & CL-600-2B16

ATA 57-40

WINGS

SPECIAL CHECK – FLAP HINGE BOX – FORWARD LUGS EDGE TO EDGE DISTANCE
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

See Table in Paragraph 1.D.

EFFECTIVITY: A/C Serial No. 3001 to 5194

MANPOWER: 45 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

NOTE: To minimize aircraft downtime and cost, it is recommended to do Alert Service Bulletin A601-0627, Part B in conjunction with 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: Sep 26/2013 

# 601-0631 Page 1 of 20 

# SERVICE BULLETIN

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

### MODEL CL-600-2B16

ATA 57-40

WINGS

SPECIAL CHECK – FLAP HINGE BOX – FORWARD LUGS EDGE TO EDGE DISTANCE



### 1. PLANNING INFORMATION

NOTES : 1. To minimize aircraft downtime and cost, it is recommended to do Alert Service Bulletin A601-0627, Part B in conjunction with this Service Bulletin. 2. Special tool is required for bushing removal. See Appendix 2 for details, or commercially available tool is acceptable. A. Effectivity CL-600-2B16 aircraft, Serial No. 3001 to 5194

. 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.
B. Reason During production inspection of the flap hi nge box assembly, it was found that the material around the forward lugs on the inboard and outboard flap hinge boxes was below the minimum requirements. This Service Bulletin gives instructions to inspect the affected lugs and compare them with the limits stated in this Service Bulletin. If necessary, instructions are given if the limits are not met.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 2 of 20 C. Description This Service Bulletin gives instructions to:

–Remove the inboard and outboard forward flap-hinge fairings,

–Disconnect the wing fitting/lugs of t he inboard and outboard flap hinge box,

–Measure the forward lugs of the inboard and outboard flap hinge box,

–Reconnect the wing fitting/lugs of the inboard and outboard flap hinge box,

–Install the inboard and outboard fo rward flap-hinge fairings, and

–Do the necessary tests to make sure that the inboard and outboard flaps operate correctly. D. Compliance
Recommended within 48 months from this Service Bulletin release date (Basic Issue) or at the following ti me compliances, whichever comes first.
INBOARD FLAPS (WS 76.50 and WS 127.25) Accumulated Aircraft Flight Cycles (Landings) Compliance Schedule for Initial Inspection (Landings)
7,400 or less Prior to exceeding 7,900

More than 7,400 but not more than 14,850 Within the next 500 but not exceeding 15,100, whichever comes first

More than 14,850 Within 250 flights

OUTBOARD FLAPS (WS 178.00, WS 220.00 and WS 264.00) Accumulated Aircraft Flight Cycles (Landings) Compliance Schedule for Initial Inspection (Landings)
7,500 or less Prior to exceeding 8,000

More than 7,500 but not more than 11,350 Within the next 500 but not exceeding 11,600, whichever comes first

More than 11,350 Within 250 flightsMODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 3 of 20 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. 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 601-0002. 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. 45 man-hours are necessary to do this Special Check. Bombardier Aerospace does not pay for the labor to do this Special Check. G. Material - Cost and Availability The parts listed in Paragraphs 3.B. may be necessary to do this modification. Bombardier Aerospace does not pay for t he parts in Paragraph 3.B. to do this modification. The Smart Parts Plus Program does not pay for the parts in Paragraph 3. B. H. Tooling The equipment and tools listed below are necessary to do this special check:

GSE REFERENCE NO. PART NO. DESCRIPTION 24-00-24 - Tag, Circuit Breaker Commercially Available - Torque Wrench 20 to 25 lbf in (2.26 to 2.82 Nm) Commercially Available - Torque Wrench 30 to 35 lbf in (3.39 to 3.95 Nm) Commercially Available - C-ClampMODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 4 of 20 The tool listed below or a commercially ava ilable equivalent tool is required for the removal of the bushings.

REFERENCE NO. PART NO. DESCRIPTION See Note 3 - Support Block

NOTES : 1. Refer to the Illustrated Tool and Equipment Manual (ITEM), PSP611 to make sure that you use the correct equipment configuration. 2. Refer to the Introduction of the publication listed in NOTE 1 for acceptable GSE equivalents. 3. For the support block manufacturing details, refer to Appendix 2. I. Weight and Balance No change.
J. Electrical Load Data No change.
K. References

–Bombardier Aerospace, Restriction and/or Special Instruction (RSI), C-4093, Rev. A2.

–CL-601 Illustrated Parts Catal og (IPC), PSP 601-4, Chapter 57.

–CL-601 Illustrated Tool and Equipment Manual (ITEM), PSP 611, Chapter 24.

–CL-601 Maintenance Manual, PSP 601-2, Chapters 6, 12, 27, and 57.

–CL-601 Structural Repair Manual (SPM), PSP 607, Chapter 51.

–CL-601 Time Limits and Maintenance Checks (TLMC), Chapter 5.

–Bombardier Aerospace, Modifica tion Summary IS600-57-0001, Rev. A.

–Appendix 1 – Information Feedback Sheet (attached).

–Appendix 2 – Support Block (attached).
L. Other Publications Affected

–None. M. Equivalent Service Bulletins

–For the Challenger 600 aircraft, use SB 600-0762.

–For the Challenger 604 aircraft, use SB 604-57-007.

–For the Challenger 605 aircraft, use SB 605-57-005.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 5 of 20 

### 2. ACCOMPLISHMENT INSTRUCTIONS

NOTES : 1. All TASKs given in the procedures that follow are from the Aircraft Maintenance Manual unless otherwise specified. 2. All references made to zones, a ccess panels and/or doors, are from the Aircraft Maintenance Manual, Chapter 6. A. Aircraft Setup (1) Install the safety devices and the warning signs in the applicable locations and the warning placard on the flap control lever. (2) Obey all electrical/electronic safety precautions. Refer to Chapter 24-00-00, ELECTRICAL POWER - Removal/Installation. (3) Connect and energize the external AC power. Refer to Chapter 12-00-00, SERVICING – Maintenance Practices. (4) Set the flap control lever to 45 degrees and make sure that the flaps are fully extended. (5) Remove the external AC power. Re fer to Chapter 12-00-00, SERVICING – Maintenance Practices. (6) Open and tag the circuit breakers that follow:

CB NO. CB PANEL

(3001 to 3066) (5001 to 5194) NAME ZONE

CBP-A 20 20 FLAP MOTOR 1 221
CBP-A 77 77 FLAP CONT 1 221
CBP-B 176 20 FLAP MOTOR 2 222
CBP-B 233 77 FLAP CONT 2 222 (7) Remove fillet sealant from perim eter around the forward inboard and outboard flap hinge-fairings, making contact wit h the wing surface and the inboard and outboard flap respectively. Refer to Chapter 51-57-00, SERVICING – Maintenance Practices. (8) Remove the left and right flap hinge-fairi ngs that follow: Refer to Chapter 6-53-00, REMOVABLE FAIRINGS – General.

ACCESS DESIGNATION 571CB (671CB) Fairing, Forward Inboard – Flap Hinge 571FB (671FB) Fairing, Forward Inboard – Flap Hinge 581BB (681BB) Fairing, Forward Outboard 581DB (681DB) Fairing, Forward Outboard 581FB (681FB) Fairing, Forward OutboardMODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 6 of 20 B. Measurement of the Inboard Forward-Lug Edge to Edge Distance of the Flap-Hinge-Boxes, Part No. 600-10116, 600-10117. CAUTION : ONLY ONE FLAP HINGE BOX IS TO BE DISCONNECTED AND INSPECTED AT A TIME. THE FLAP HINGE BOX MUST BE SUPPORTED DURING THE INSPECTION SO AS NOT TO DAMAGE THE FLAPS AND ATTACHED COMPONENTS. (1) For each wing, disconnect one flap hinge box at a time from the wing forward-attachment fitting and wing aft-attachment fitting.
NOTES : 1. The flap will be supported by the other attached flap hinge box/arm and both actuators. 2. To reduce the load on the other attached flap hinge box/arm and actuators, the flaps should also be supported per best shop practice or with a bench and padding. Refer to Figure 1.

Figure 1 (2) Disconnect the inboard flap hinge box (1) at location WS 76.50 and WS 127.25 as follows: Refer to Figure 1, 2, 3 and 4.
NOTE: It is not necessary to remove the flap hinge boxes from the aircraft for the lug edge to edge distance measurement. Refer to Figure 2 for the recommendations to disconnect the flap hinge box.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 7 of 20 Flap Hinge Box Figure 2 (a) If necessary, remove and keep the hardware that attach the bonding jumpers to the flap hinge box (1). (b) For the flap hinge box (1) located at WS 76.50 only, do as follows: (i) If necessary, disconnect the electrical connector wire (3) from any attached location on the structure, to allow downward movement of the flap hinge box.
WARNING : WEAR EYE PROTECTION WHEN YOU CUT THE COTTER PIN. WHEN THE COTTER PIN IS CUT, PIECES CAN HIT YOUR EYES AND CAUSE INJURIES. (ii) Remove and discard the cotter pin (4). Refer to Maintenance Manual (PSP 601-2), 20-80-00 Safetying Devices. Support for the fla p hin g e box Disconnect flap hinge box from fittings. CAUTION: Make sure that there is no contact between the flap hinge box and fairing to avoid damage when lowering the flap hinge box. If required, remove flap hinge box bonding jumper. Lower flap hinge box enough to permit measurement of the lug edge to edge distance.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 8 of 20 (iii) Remove the nut (5), washer (6) and bolt (7) and disconnect the control rod (2) from the lever (8) of the flap position transmitter. (iv) If disconnected, put protective covers on the open ends of the electrical connector (3) and on the electrical connection of the position transmitter. (c) Remove and keep the nuts (9), washers (10) and (11), and bolts (12), to disconnect the forward lugs of the flap hinge box (1) from the forward attachment fitting.

CAUTION : TO REMOVE AND INSTALL THE HINGE BUSHINGS USE A C-CLAMP METHOD WITH THE SUPPORT BLOCK. USE LIGHT ANTISEIZE LUBRICANT (WD-40 OR SIMILAR) IF THE BUSHINGS ARE SEIZED OR DIFFICULT TO REMOVE. MAKE SURE THAT THE LATERAL FORCE DOES NOT EXCEED 200 LBS AND DO NOT USE A HAMMER TO REMOVE THE BUSHINGS, THIS CAN CAUSE DAMAGE. BEFORE YOU INSTALL THE C-CLAMP, MAKE SURE YOU INSTALL A SUPPORT BLOCK BETWEEN THE FITTINGS, SHIMS IN ALL GAPS AS REQUIRED TO AVOID BENDING AND DAMAGE FROM THE CLAMP FORCE.
OTHER METHOD THAN C-CLAMP COULD BE USED, PROVIDED LUGS ARE SUPPORTED AND LATERAL FORCE DOES NOT EXCEED 200 LBS TO AVOID DAMAGE Figure 3 Install the support block, manufactured as per Appendix 2 or an equivalent commercially available tool between the fittings.

Shim all gaps as required.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 9 of 20 (d) Remove bushings (13) to disconnect the flap hinge box (1) from the forward attachment fitting. Keep bushings (13) if not damaged to re-install later. Refer to Figures 3 and 4.
CAUTION : HOLD THE FLAP HINGE BOX WHILE THE BOLTS ARE REMOVED. IF THE FLAP HINGE BOX FALLS, IT WILL CAUSE DAMAGE TO THE FLAP HINGE BOX AND ATTACHED COMPONENTS. (e) Remove and keep the nuts (14), was hers (15) and (16), and bolts (17), to disconnect the hinge box (1) from the aft attachment fitting. (f) Remove bushings (18) to disconnec t the hinge box (1) from the aft attachment fitting. Keep bushings (18) if not damaged to re-install later. Refer to Figures 3 and 4.
CAUTION : MAKE SURE THERE IS NO CONTACT BETWEEN THE FLAP HINGE BOX AND AFT FAIRING TO AVOID DAMAGE TO THE AIRCRAFT STRUCTURE WHEN YOU LOWER THE FLAP HINGE BOX DOWNWARD FOR ACCESS. (3) Carefully pull the flap hinge box (1) dow nward to allow access to the forward lugs for the lug edge to edge distance measurement.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 10 of 20 Inboard Flap-Hinge-Box Figure 4
(4) Measure and record the minimum lug edge to edge distance of the forward lugs of the inboard flap hinge boxes at locations WS 76.50 and WS 127.25. Refer to Figure 5.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 11 of 20 NOTE : LEFT SIDE SHOWN, RIGHT SIDE OPPOSITE.

WS 76.50 and WS 127.25 Inboard Flap-Hinge-Box Forward-Lug Edge to Edge Distance Limits Figure 5
(5) If any of the inboard flap-hinge-box forw ard lug edge to edge distance is below the 0.256 in (6.50 mm) minimum lim it do the steps that follow: (a) Fill-in Appendix 1 with the data (minimum lug edge to edge distance, hole diameter, lug thickness & lug location) applicable to the faulty Flap Hinge Box(es), then,MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 12 of 20 (b) Submit Appendix 1 with an SRPSA to Customer Support Engineering (CSE) for evaluation and an approved repair by e-mail at: SRPSA@aero.bombardier.com

. (6) If the measured forward-lug edge to edge distance of the inboard flap-hingeboxes are equal or above the minimum limit, no corrective action is required. Install the inboard flap-hinge-box in the steps that follow. (7) Install the inboard flap hinge box (1) at locations WS 76.50 and WS 127.25 as follows: Refer to Figure 4. (a) Apply a layer of Mastinox 6856K to the bushings (13) and (18) on installation. (b) Put the flap-hinge-box (1) in position. (c) Install the bushings (18) on the flap hinge box (1) and aft attachment fitting. (d) Install the bushings (13) on the fo rward lugs of the flap hinge box (1) and forward attachment fitting. (e) Install bolts (17), washers (15) and ( 16), and nuts (14) to attach the flap hinge box (1) to the aft attachment fitting.
NOTE: Make sure the sum of the gap measurement between the aft attachment fitting and lower surface of bolt head (17), and between the aft attachment fitting and the lower surface of washer (15), is 0.020 in to 0.105 in (0.508 mm to 2.667 mm). (f) Install the bolts (12), washers (10) and (11), and nuts (9) to attach the flap hinge box (1) to the forw ard attachment fitting.
NOTE: Make sure the sum of the gap measurement between the forward attachment fitting and lower surface of bolt head (12), and between the forward attachment fitting and the lower surface of washer (10), is 0.015 in to 0.060 in (0.381mm to 1.524 mm). (g) Torque the nuts (9) and (14) from 30 to 35 lbf in (3.39 to 3.95 Nm). Refer to Maintenance Manual (PSP 601-2), 20-20-00 Torquing. (h) Attach the control rod (2) and electrical connector (3) to the flap position transmitter as follows: (i) Align the eye of the control rod (2) with the lever (8). (ii) Install the bolt (7), washer (6) and the nut (5). (iii) Torque the nut (5) from 20 to 25 lbf in (2.26 to 2.82 Nm). Refer to Maintenance Manual (PSP 601-2), 20-20-00 Torquing.
WARNING : WEAR EYE PROTECTION WHEN YOU CUT THE COTTER PIN. WHEN THE COTTER PIN IS CUT, PIECES CAN HIT YOUR EYES AND CAUSE INJURIES. (iv) Install the cotter pin (4). Refer to Maintenance Manual (PSP 601-2), 20-80-00 Safetying Devices.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 13 of 20 (v) If installed, remove the protective covers from the open ends of the electrical connector (3) and from the electrical connection of the position transmitter. (vi) If disconnected, connect the electrical connector (3) to the flap position transmitter. NOTE : If detached, attach the electrical connector wire to the necessary locations on the structure. (i) If removed, install the bonding jumper on the flap hinge box (1). Maintenance Manual, PSP 601-2, Chapt er 57-40-01, FLAP HINGE BOX, Removal/Installation. (j) If necessary, do the electrical bonding test for the applicable flap hinge box (1). Refer to Maintenance Manual, PSP 601-2, Chapter 51-80-00, ELECTRICAL BONDING. C. Measurement of the Outboard Forward-Lug Edge to Edge Distance of the Flap-Hinge-Boxes, Part No. 600-10118, 600-10119, and 600-10120. (1) Disconnect the outboard flap hinge box (19) at locations WS 178.00, WS 220.00, and WS 264.00 as follows: Refer to Figures 1, 2, 3 and 6.
NOTE: It is not necessary to remove the flap hinge boxes from the aircraft for the lug edge to edge distance measurement. Refer to Figure 2 for the recommendations to disconnect the flap hinge box. (a) If necessary, remove and keep the hardware that attach the bonding jumpers to the flap hinge box (19). (b) Disconnect the control rod (23) from the BUTE door fitting in the steps that follows:
WARNING : WEAR EYE PROTECTION WHEN YOU CUT THE COTTER PIN. WHEN THE COTTER PIN IS CUT, PIECES CAN HIT YOUR EYES AND CAUSE INJURIES (i) Remove and discard the cotter pi n (20). Refer to Maintenance Manual (PSP 601-2), 20-80-00 Safetying Devices. (ii) Remove and keep the pin (21) and washer (22) to disconnect the control rod (23) from the BUTE door fitting. (c) Remove and keep the nuts (24), washers (25) and (26), and bolts (27), to disconnect the hinge box (19) from the forward attachment fitting. (d) Remove bushings (28), to disconnect the hinge box (19) from the forward attachment fitting. Keep bushings if not damaged to re-install later. Refer to Figures 3 and 6.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 14 of 20 CAUTION : HOLD THE FLAP HINGE BOX WHILE THE BOLTS ARE REMOVED. IF THE FLAP HINGE BOX FALLS, IT WILL CAUSE DAMAGE TO THE FLAP HINGE BOX AND ATTACHED COMPONENTS. (e) Remove and keep the nuts (29), was hers (30) and (31), and bolts (32), to disconnect the hinge box (19) fr om the aft attachment fitting. (f) Remove bushings (33), to disconnec t the hinge box (19) from the aft attachment fitting. Keep bushings if not damaged to re-install later. Refer to Figures 3 and 6.
CAUTION : MAKE SURE THERE IS SUFFICIENT CLEARANCE BETWEEN THE FLAP HINGE BOX AND AFT FAIRING TO AVOID DAMAGE TO THE AIRCRAFT STRUCTURE WHEN YOU LOWER THE FLAP HINGE BOX DOWNWARD FOR ACCESS. (2) Carefully pull the flap hinge box (19) downward to allow access to the forward lugs for the lug edge to edge distance inspection.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 15 of 20 19

24 27

19 29 30 33

31 32DSB57050_004 FORWARD ATTACHMENT FITTTING AFT ATTACHMENT FITTTING

AREA OF INSPECTION 25 28

26 27 22

21

20

23 FITTING BUTE DOOR

Outboard Flap-Hinge-Box Figure 6
(3) Measure and record the minimum lug edge to edge distance of the forward lugs of the outboard flap hinge boxes at location WS 178.00, WS 220.00 and WS 264.00. Refer to Figure 7.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 16 of 20 NOTE : LEFT SIDE SHOWN, RIGHT SIDE OPPOSITE.

WS 178.00, WS 230.00 and WS 264.00 Outboard Flap-Hinge-Box Forward- Lug Edge to Edge Distance Limits Figure 7MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 17 of 20 (4) If any of the outboard flap-hinge-box forward-lug edge to edge distance is below the 0.182 in (4.62 mm) minimum limit do the steps that follow: (a) Fill-in Appendix 1 with the data (minimum lug edge to edge distance, hole diameter, lug thickness & lug location) applicable to the faulty Flap Hinge Box(es), then, (b) Submit appendix 1 with an SRPSA to Customer Support Engineering (CSE) for evaluation and an approved repair by e-mail at: SRPSA@aero.bombardier.com

. (5) If the measured forward-lug edge to edge distance of the outboard flap-hingeboxes are equal or above the minimum limit, no corrective action is required. Follow the next steps to attach the outboard flap hinge box. (6) Install the outboard flap hinge box (19) at locations WS 178.00, WS 220.00, and WS 264.00 as follows: Refer to Figure 6. (a) Apply a layer of Mastinox 6856K to the bushings (28) and (33) on installation. (b) Put the flap-hinge-box (19) in position. (c) Install the bushings (33) on the flap hinge box (1) and aft attachment fitting. (d) Install the bushings (28) on the forw ard lugs of the flap hinge box (1) and forward attachment fitting. (e) Install bolts (32), washers (30) and (31), and nuts (29) to attach the flap hinge box (19) to the aft attachment fitting. NOTE: Make sure the sum of the gap measurement between the aft attachment fitting and lower surface of bolt head (32), and between the aft attachment fitting and the lower surface of washer (30), is 0.020 in to 0.105 in (0.508 mm to 2.667 mm). (f) Install the bolts (27), washers (25) and (26), and nuts (24) to attach the flap hinge box (19) to the fo rward attachment fitting. NOTE: Make sure the sum of the gap measurement between the forward attachment fitting and lower surface of bolt head (27), and between the forward attachment fitting and the lower surface of washer (25), is 0.015 in to 0.060 in (0.381mm to 1.524 mm). (g) Torque the nuts (24) and (29) from 30 to 35 lbf in (3.39 to 3.95 Nm). Refer to Maintenance Manual (PSP 601-2), 20-20-00 Torquing. (7) Connect the control rod (23) to the BUTE door fitting in the steps that follow: Refer to Figure 6. (i) Put the control rod (23) in position on the BUTE door fitting. (ii) Install the pin (21) and washer ( 22) to connect the control rod (23) to the BUTE door fitting.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 18 of 20 WARNING : WEAR EYE PROTECTION WHEN YOU CUT THE COTTER PIN. WHEN THE COTTER PIN IS CUT, PIECES CAN HIT YOUR EYES AND CAUSE INJURIES. (iii) Safety the pin (21) with the new cotter pin (20). Refer to Maintenance Manual (PSP 601-2), 20- 80-00 Safetying Devices. (8) If removed, install the bonding jumper s on the outboard flap hinge box (19). Refer to Maintenance Manual, PSP 601- 2, Chapter 57-40-01, FLAP HINGE BOX, Removal/Installation. (9) If necessary, do the electrical bondi ng test for the applicable flap hinge box (19). Refer to Maintenance M anual, PSP 601-2, Chapter 51-80-00, ELECTRICAL BONDING. D. Testing (1) Do an operational test of the inboard and outboard flaps to make sure the flap hinge box assemblies move freely, befor e installing the flap hinge-fairings. Refer to TASK 27-54-00-710-801. (2) Install the left and right flap hinge-fairi ngs that follow: Refer to Chapter 6-53-00, REMOVABLE FAIRINGS - General.

ACCESS DESIGNATION 571CB (671CB) Fairing, Forward Inboard – Flap Hinge 571FB (671FB) Fairing, Forward Inboard – Flap Hinge 581BB (681BB) Fairing, Forward Outboard 581DB (681DB) Fairing, Forward Outboard 581FB (681FB) Fairing, Forward Outboard (3) Apply a filet of sealant around the flap hinge fairings. Refer to SRM, Chapter 51-57-00, SEALING – Description, Aerodynamic Sealing. (4) Remove the tags and close the circuit breakers that follow:

CB NO. CB PANEL

(3001 to 3066) (5001 to 5194) NAME ZONE

CBP-A 20 20 FLAP MOTOR 1 221
CBP-A 77 77 FLAP CONT 1 221
CBP-B 176 20 FLAP MOTOR 2 222
CBP-B 233 77 FLAP CONT 2 222 (5) Connect and energize the external AC power. Refer to Chapter 12-00-00, SERVICING – Maintenance Practices. (6) Set the flap control lever lever to 0 and make sure that the flaps retract fully.MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 19 of 20 (7) Do an operational test of the inboard and outboard flaps. Refer to Chapter 27- 50-00, WING FLAP SYSTEM – Maintenance Practices. (8) Remove the external AC power. Re fer to Chapter 12-00-00, SERVICING – Maintenance Practices.
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 kit 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
MS24665-151 6 Cotter Pin - -
MS24665-71 2 Cotter Pin - -

The parts that follow may be necessary to do this Service Bulletin if the removed bushing(s) are damaged or found corroded:

NEW PART NO. QTY ITEM USED PART NO. INSTRUCTIONS - DISPOSITION 600-10300-609 0 - 8 Sleeve Bushing - - 600-10300-611 0 - 8 Sleeve Bushing - - 600-10300-613 0 - 12 Sleeve Bushing - - 600-10300-615 0 - 12 Sleeve Bushing - -MODEL CL-600-2A12 & CL-600-2B16

Basic Issue: Sep 26/2013 

# 601-0631 Page 20 of 20 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) Compound, Sealing
CT: 2 Hours or

30 Minutes - MIL-S-81733 Type II, PS 870

Class B-2 or B-1/2 As Necessary Code: A

Compound,

Corrosion

Inhibitor - Mastinox 6856K 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. 3. 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
PRC – Desoto International 5430 San Fernando Road,

PO Box 1800, Glendale, CA, U.S.A. 91209 Tel.: 1-800-228-5635 Fax: (818)-549-7790
Web Site: www.ppg.com/prc-desoto

D. Publications No publications required.

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

SERVICE BULLETIN: 601-0631 ISSUE: Basic DATED: Sep 26/2013

TITLE: Special Check – Flap Hinge Box – Forward Lugs Edge to Edge Distance

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 – “601-0631”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

601-0631 Basic -

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

Attention : Customer Support Department, Maintenance Engineering

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