# BOMBARDIER M OD I FfCATION SU M MARY PACKAG E 125 2 MODEL I TYPE 3 MODSUM NO . COMPLETE 

## D 4 SHEET 

## Not Applicable Q400 15402400029 1 OF 

### 25 5 CURRENT A REVISION 6 PRIME DESIGN ACTIVITY BOMBARDIER INC . 

## D 3AB48 7 SUPPLIER NAME AND CAGE CODE

BOMBARDIER INC. , MONTREAL 

## D 88308 LEARJET INC . 

# D 24210 BOMBARDIER I NC. , DOWNSVIEW 

### IX] 71867 SHORT BROTHERS PLC 

# D K4585 8 TITLE 10 APPROVED INITIATING DOCUMENT M LG El ectrical H arn esses - 

### 82440845 & 

### 82440848 (LH Aft-Mid PCR 44059 N ace lle) a nd 

### 8244084 1 & 

### 82440850 ( R H Aft- M id N ace ll e) Re- Ro uting 9 MAJOR ASSY OR COMPONENT AFFECTED 82454301 Electrical Harness Installation L H Aft-Mid N acelle BASKET MODSUM 824543 1 5 Electrical Harness Installation RH Aft-M id N acelle 

# D SEE INDIVIDUAL AUTH DOCUMENTS 11 DESCRIPTION OF MODIFICATION

Thi s Modsu m re-ro utes E lectrica l H arnesses 

### 82440845 & 

### 82440848 (LH Aft- Mid Nacelle) and 

### 82440841 & 

### 82440850 ( RH Aft- M id Nacelle) and installs grom mets to prevent contact with the M LG Sta b ilizer Br ace .

12 REASON FOR MODIFICATION

T h is Mod s u m provide s retrofit 

### I additional protection to p revent po ssib le contact w ith the M LG Sta bilizer B race .
13 ENGIN E ERING R E MARKS

This Modsum is for in-service ai rcraft o n ly an d w i ll not be i nco rpo rate d o n p rodu ction ai rcraft. APPROVED BY:

## ~~)~~ ,:3/?1//J 

## /?IL ..**e~<'** 

# I DAT E;LLLJ 

### (o

### 1.2 APPROVED I N**ACC ORD** **~** WITH T RAN SPO R T CAN ADA DAO NO . 93-Q-02 rJ14 RELATED MODSUM 16 PRODUCTION EFFECT IVITY

IS4Q5450002 , IS4Q5450003 N/A IS4Q2400028 , 4Y123798 15 ENGINEERING VALI D ITY 17 RECOMMENDED SERVICE EFFECTIV ITY

4001-4999 DHC-8 , Series 400 18 CLASS 19 AIRWORTHI NESS CLASSIF ICATION In Service Ai rcraft SIN 's 4090- 4411 

## 8 LEVEL 1** 

# D LEVEL 2* 

# D LEVEL 3 

### !X] BT0206-{)2A**~REV** 2004-10 ' 'DCCP OR 'ACRL & SOC OR FAA FORM 8110-3 REQUIRED © 2004 Bombar d ier Inc.

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUMNO. 4 SHEET AUTHORIZATION SHEET 154Q2400029 

### 2 5 CURRENT REVISION 

### A 21 ORIGINATOR



# ~erric~**~~ryu.J~**

**dl~jJ)o,,** 22 DESIGN 

### fl;or'6e Gm bas 

## r'vv 

## !AI 2G'J11J 2.01"1.- 23 DESIGN AUTHORITY



## u~.~'f-.10 

## itCI 

# J 

# d!



# ,~,/M h<'o 24 PP&C



### I~. Z-'IZ 07-oG ,lf'toSJ{TA-1/JS/c; 5 CURRENT REVISION 21 ORIGINATOR 22 DESIGN 23 DESIGN AUTHORITY 24 PP&C 25 REVISION DESCRIPTION 

### A-lnitiallssue fRAIJSI(



### SHt=£1/FI~'-/bo

BT1l206.CS WI REV 2004-10

# BOMBARDIER MODIFICATION SUMMARY PACKAGE C MODSUM NO. D SHEET AIRWORTHINESS CLASSIFICATION IS4Q2400029 

### 2.1 H REV V AIRWORTHINESS CLASSIFICATION 

### A ..LEVEL 1 

# - 

# -· - - •LEVEL 2 

# - 

# - 7 

# 7 LEVEL3 

# .7 

# v 

# - .--- W DISCIPLINE CODE 

### 1:2L**~'N.£ ~,....** **~-~/1** X CERT AUTH 

# m-.:rn \**~ ~**  I 

## ma..h/.

DES REP SIGNATURE Y CERTAUTH MAIZ!N() 

## Uooft!VI<..**la~..rm** IV DES REP NAME 

### t.J/h-t-(ft· H REV V AIRWORTHINESS CLASSIFICATION

..LEVEL 1 •LEVEL 2 LEVEL 3 W DISCIPLINE CODE X CERT AUTH

DES REP SIGNATURE Y CERT AUTH DES REP NAME H REV V AIRWORTHINESS CLASSIFICATION

..LEVEL 1 •LEVEL 2

LEVEL 3 W DISCIPLINE CODE X CERT AUTH

DES REP SIGNATURE Y CERT AUTH DES REP NAME H REV V AIRWORTHINESS CLASSIFICATION

..LEVEL 1 •LEVEL 2 LEVEL 3 W DISCIPLINE CODE X CERT AUTH

DES REP SIGNATURE Y CERTAUTH DES REP NAME H REV V AIRWORTHINESS CLASSIFICATION

..LEVEL 1 •LEVEL 2 LEVEL 3 W DISCIPLINE CODE X CERT AUTH

DES REP SIGNATURE Y CERT AUTH DES REP NAME H REV V AIRWORTHINESS CLASSIFICATION

..LEVEL 1 •LEVEL 2 LEVEL 3 W DISCIPLINE CODE X CERT AUTH

DES REP SIGNATIIRE Y CERT AUTH DES REP NAME BT0206..Q7 MW REV 2004-10 AFTER TYPE APPROVAL,"*DCCP OR *ACRL & SOC OR FAA FORM 8110-3 REQUIRED

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUMNO . 4 SHEET CONTINUATION SHEET IS4Q2400029 3 5 CURRENT 

### A REVISION 

### Parts Required: Item QTY Part No. Description No.

1 AIR DSC230-7HT or Panduit T25T or AMP 500024 Spiral Wrap , Teflon (.250") 2 AIR MS21266-2N Grommet. Edging 3 AIR OHMS A6 . 09 Epoxy Adhesive or Fast Weld No. 10 Adhesive 4 AIR OHMS A 6 . 12 or EC-2216 Epoxy Adhesive B/A. (3M) Adhesive 5 AIR OHMS S3 . 01 /B2 or PR 1422 B1/2 Sealant 6 AIR MIL-1-19166 Fiberglass Tape (1 to 1 .5") 7 12* B0816035CR3T (Preferred ) or (Click Bond) Cable T ie Mount, Metal CB3019CR3T (Preferred) or Alternate P/N CSP458-1 or B0816033-002 8 AIR B0816019-003 or PLT2S-76 (Panduit) Tie Wrap/Strap 9 AIR B0816038-002 or CR4H (Pandu it) Connector Ring 10 2* NAS43DD3-40FC Spacer 11 2* NAS1801-3-20 Screw 12 2* MS21919WDE10 Clamp 13 AIR CB200 or CB200-40 Acrylic Structural Adhesive Adhesive (Click Bond ) Notes :* Minimum Qty needed, any excess may be used as spares . 

### Job Set-Up: • Obey all the Electrical/ Electronic Safety Precautions (Refer to TASK 24-00-00-910-801 ) . • Obey all the electrostatic discharge safety precautions ( Refer to TASK 24-00-00-910-802) . • De-energize the electrical system (Refer to TASK 24-00-00-861-802) . • Open and tag the circuit breakers for the affected circuits. • Open and lock the main lan ding gear doors (Refer to TASK 32-00-00-840-801 ) . Warning: • Remove all Electrical & Hydraulic power from the aircraft before you do maintenance. • Jack the Aircraft lAW AMM TASK 07-10-00-582-801 . • Remove LH & RH MLG Stabilizer Strut lAW AMM TASK 32-11-16-000-801 . • Remove LH & RH MLG Forward Doors lAW AMM TASK 32 - 12-11-000-801 . References: • IPC Fig 24-00-03-01 -Electrical Cable Installation- Outboard, LH Mid & Aft Nacelle . • IPC Fig 24-00-03-10- Electrical Cab le Installation - Outboard, RH Mid & Aft Nacelle. BT0206-05 MW REV 2004-1 0

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET CONTINUATION SHEET IS4Q2400029 4 5 CURRENT

## -A--+---**~----~----4-----~---+---- ----** **+- --** **-4 ----~----+---** **-4** REVISION

• WDM 20-12-10-201 -Wiring- Maintenance Practices . • WDM 20-15-04-201 -Repair of the Metal Overbraiding Shield on Electrical Cable Harnesses Within Allowable Damage Tolerances . • WDM 20-15-10-401- Adaptors And Connectors Used To Terminate Overbraid And Individual Wire Shields For Emi And HIRF Protection- Removal/Installation. • WDM 32-61-00- Proximity Sensor System (LH 

### Aft-Mid 

### Nacelle): • Harness 82440845: To 3261-J21 (LH WOW-1) & 3261-J23 (LH Gear Down Lock-1) • Harness 82440848: To 3261-J22 (LH WOW-2) & 3261-J24 (LH Gear Down Lock-2) 

### (RH Aft-Mid 

### Nacelle): • Harness 82440841: To 3261-J41 (RH WOW-1) & 3261 -J43 (RH Gear Down Lock-1) • Harness 82440850: To 3261-J42 (RH WOW-2) & 3261-J44 (RH Gear Down Lock-2) 

### Procedure: 1. Gain access to the LH 

### Nacelle area and clean the Electrical Conduit 

### I Harnesses 82440845 & 82440848 going to connector's 3261-J21 , 3261-J23, 3261-J22 , and 3261-J24 with Isopropyl Alcohol. (Refer to TASK 20-30-26-910-801 & TASK 20- 30-26-910-803- Cleaning of the Electrical Wiring). See 

### Figure 1 for noted location . 

# \

Figure 1 - LH Nacelle, Location Of The Harnesses To Be Re-Routed BT0206-05 MW REV 2004- 10

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET CONTINUATION SHEET IS4Q2400029 5 5 CURRENT A RE V ISION



### 2 . Inspect the Harness Conduit for any signs of chafing or damage and if required repair lAW WDM 20- 15-04-201 . See 

### Figure 2 . If damage is found on Harness Conduit due to impact damage, inspect the applicable MLG Stabilizer Brace . Inspect the adjacent area around th e conduits for any signs of structural damage due to chafing . Report any Stabilizer Brace or structural damage findings to Bombardier Aerospace via the THO .

BT

0206.Q5 MW REV 2004-1 0

# ::::,**_:: .-t** **:::==::t -:::/** **~** Adjacent Structure

-- For Signs Of Chafing

Note : The Routing May Vary Between A/C 

### Figure 2 - LH Nacelle, Area Of Inspection

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET CONTINUATION SHEET 15402400029 6 5 CURRENT A REVISION



### 3. Remove the harness support clamps mounted on the Nacelle M A" frame and pull the harness down . Loosen the harness support clamps along the Nacelle side panel as shown . Cut and remove any tie wraps , tape, or spiral wrap . Inspect the removed hardware for condition and replace as required . See Figure 3. 

# o:,

. . .

' '

Loosen These Support Clamps 

# I ' ' 

# I 

# I

LH Nacelle -View Looking Out Board , LH Side Panel Remove These Support Clamps & Pull Cables Down LH Nacelle- Vie w FWD On Aft Face Of ' A' Frwne 

### Figure 3 - LH Nacelle , Support Clamps Removal 4 . Prepare/clean the area shown i n Figure 4 where the metal tie mounts (Item 7) & grommet (Item 2) are to be installed by cleaning w ith solvent (Isopropyl Alcohol) or equ ivalent.
BT0206..05 MW REV 2004-10

# BOMBARDIER CONTINUATION SHEET 5 CURRENT 

### A REVISION

View Looking FWD On Aft Face Of 'A' Frame, LH Nacelle Shown, RH Nacelle Similar, P/N 85414025 Shown 

### MODIFICATION SUMMARY PACKAGE 3 MODSUM NO. 4 SH EET IS4Q2400029 7

LH Nacelle - View looking Out Board , LH Side Panel 

### Figure 4 - LH Nacelle , Tie Mount & Grommet Installation Preparation 5. Install the Cl ick Bond Tie Mounts ( Item 7) using the dimensions & locations shown in 

### Figures 6 & 

### 7. Go to step 7 for alternate Tie Mounts (PIN CSP458- 1) installation . 6 . Mark locations and prepare the area for bonding . 

### Surface preparation: Surface preparation is an important part of adhesive bonding . Lightly abrade glossy surfaces to improve the adhesive bond . Just prior to adhesive application , clean surfaces with solvent using clean rags or paper towels . Do not use shop towels , rags or paper w ipes contaminated with oil , soap , or recla imed solvents . Wash one small area at a time , and then dry w ith a clean cloth before the solvent evaporates to prevent redeposition of contaminants . To maintain a clean solvent supply, always pour the solvent on the BT0206.05 MW R EV 2004- 10

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUM NO. 4 SH EET CONTINUATION SHEET IS4Q2400029 8 5 CURRENT A REVISION 

### was hing cloth . Click Bond C8200 Notes: Mix Ratio (B: A) : 8 : 1 (volume), 7:1 (weight), Working time at 75° F: 5 minutes (small quantities) . Cure time at 75° F: 30 minutes - handling strength . 2 hours90% of ultimate strength . 24 hours - full cure . Mixing 

### & Applying CB200 or C8200-40 Adhesive : Dispense 

### 8 parts of component B and one part of component A (by volume) . M ix until a uniform color is obtained (o r use a disposable mixing nozzle) . Apply to one of the surfaces to be bonded . To assure maximum bond strength , surfaces must be mated w ithin 2 minutes . Use sufficient material to insure 100% joi nt fill when parts are mated . All adhes ive application , part pos itioning , and clamp ing should occur before the 5 min . working time of the mix has expired. Movement of the parts after working time has expired can result in bond strengths lower than normal. Insure that the assembly remains undisturbed for 30 minutes to allow adhesive cure to progress to the handling strength stage where the fixtures or clamps may be removed . Possible Adhesive (Item 13)

CB200 - 3 .5 Gram Foil Pack,

Enough Adhesive For 4-5 Click Bond Bases

2 - Locate fixture on substrate using a template or by aligning index marks with drawn centerline. Press down on outer box to adhere foam tape to substrate. CB200-40 - 40 ml Dual Pack Syringe Cartridge, Used With CB100 , CB81 & CB106

3 - Apply pressure to i nner box to

actuate fixture. Plastic springs extrude adhesive bond line and apply pos itive pressure during adhesive cure . 1- Remove the backing from foam pads on fixture and discard. Apply adhesive to fastener base.

4 - After adhesive has cured , remove fixture by grasping with pliers & discard . 

### Figure 5- Click Bond •Tie Mount• Installation Procedure

BT

0206.05 MW REV 2004-10 I

# BOMBARDIER CONTINUATION SHEET 5 C U RRENT RE V ISION A



### 14.5 9.5" 8.5"

JQitD taD

181 

### MODIFICATION SUMMARY PACKAGE 3 MODS UM NO . IS4Q2400029

Install Tie Mounts (Item 7) (Qty 3) , To The Noted Dimensions & Orientat i on Dimension Tolerances : (+/- .030") 4 SH E ET 9

LH Nacelle -View Looking Out Board, LH Side Panel 

### Figure 6 - LH Nacelle, Tie Mount Installation BT0206-05 MW REV 2004-10

# BOMBARDIER CONTINUATION SHEET 5 CURRENT A REVISION

0 

## 2.- ,..:: Keep Cables Below This Reference Line, Aligned With Machined Flange 

### MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET 15402400029

Remove Any Existing Tie Mounts That Don't Meet The Noted Dimensions &

Orientat i on As Shown
Install Tie Mounts (Item 7) (Qty 3) , To The Noted Dimensions & Orie ntation Dimension Tolerances : (+/· .030" ) 10

View Looking FWD On Aft Face Of •A' Frwne, LH NIICelle Shown, RH NIICelle Slmll• 

### Figure 7 - LH Nacelle, Tie Mount Installation BT0206-05 MW REV 2004-10

# BOMBARDIER CONTINUATION SHEET 5 CURRENT RE VISION A 

### MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET 15402400029 11

7. As a alternate to the Click Bond Tie Mounts (P/N B0816035CR3T) , it is acceptable to install tie mount (PIN CSP458-1) using the dimensions & locations shown in 

### Figures 6 

### & 7 with Fast-Weld #1 0 Epoxy Adhesive lAW SRM TASK 51-22-35-02-01 or with EC- 2216 8/A Grey Adhesive lAW SRM TASK 51- 22-20-02-01 . Lightly abrade and then clean the contact area of both the tie mount & structure surface before applying adhesive as detailed in Step 6. After cure , seal the edges of the tie mount bases with PR 1422 B1/21AW SRM TASK 51-23-00-00-01. 8 . Install the grommet (Item 2) in the location shown in 

### Figure 7 with Fast Weld No . 10 (Refer to SRM51-22-35) or with OHMS A6 . 09 epoxy adhesive (Refer to SRM51-22-45). 9 . Re-route 82440845 & 82440848 cable harnesses as shown in 

### Figures 9 

### & 10 using the 6 new tie wrap mounts .

BT0206 -{)5 MW REV 2004--10 Cables Are Moved Below This Reference Line, Aligned With Machined Flange Remove Any Existing Tie Mounts That Don't MHt The Noted Dimensions & Orientation As Shown In Figure 7

Note: The Routing May Vary Between AJC



### Figure 8 - LH Nacelle, Pre-154Q2400029 Mod Image

# BOMBARDIER CONTINUATION SHEET 5 CU RRENT RE VIS ION A 

### MODIFICATION SUMMARY PACKAGE 3 MODSU M NO . 4 SH E ET 15402400029 12

Carefully ne Wrap Cables with (Item 8) To The Tie Mounts (Item 7), 3 Locations . Don 't Tighten Tie Wr.ps Too Much As This Can Crush The Inner Conduit.

Keep Cables Below This Reference Line, Aligned With Machined Flange Secure Cables Here To New Tie Mount With Item 8 (Tie Wrap) , 3

Locations

Cover Adjacent

Wiring With Spiral Wrap If

Required . Install Clamp (Item 12) On Transition , Reposition Existing Clamps As Shown , With Spacer (Item 10) &

Screw (Item 11)

Existing Clamp P/N DSC184-9

(Ref)



### Figure 9- LH Nacelle, Harness Cable Re-Routing**T0206~ 5**  MW REV 2004- 1 0

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET CONTINUATION SHEET 15402400029 13 5 CURRENT A REVISION **t----+----t----+----1---+----+----+-----+---+----+----+---~**

Re-Route & Secure The Cables As Shown

Adjust Backshell Clamp Angle FWD

As Required To Provide Clearance 

### 3261 -.J23 Adjust Cable Routing With Additional CR4't (Item 9) & Tie Wraps (Item 8) If Required To Maintain Clearances

Cover Cables With Item 6 (Fiberglass Tape) & Item 8 (Tie Wrap) As Required

Re-lock Connector Back Shells After Adjusting Angle, Shown Unlocked


### Figure 10 - LH Nacelle, Harness Cable Re-Routing 10 . If required, cover wires & cables with spiral wrap for additional protection lAW WDM 20-12-10-201 - Wiring - Maintenance Practices. 11 . Re-tighten any support clamps that were moved or loosened. Add fiberglass tape and tie wraps where required to provide clearance and security. Ensure tore-lock any connector back shells that may have been adjusted . 12 . Remove all tools. equipment and unwanted materials from the LH Nacelle work area .

BT0206.05 MW REV 2004-10

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUMNO . 4 SHEET CONTINUATION SHEET 15402400029 

### 14 SCURRENT

## r-**-A --+-----~--~-----r--** **-- ,_** **---- +-** **----~--~ --** **---r----,_-- --+-** **---­** RE VISION

13. Gain access to the 

### RH Nacelle area and clean the Electrical Conduit 

### I Harnesses 82440841 & 82440850 going to connector's 3261-J41, 3261-J43 , 3261-J42 , and 3261-J44 with Isopropyl Alcohol. (Refer to TASK 20-30-26-910-801 & TASK 20-30-26-910-803- Cleaning of the Electrical Wiring) . See 

### Figure 11 for noted location .



### Figure 11 - RH Nacelle, Location Of The Harnesses To Be Re-Routed 14. Inspect the Harness Conduit for any signs of chafing or damage and if required repair lAW WDM 20- 15-04-201 . See 

### Figure 12 . If damage is found on Harness Conduit due to impact damage , inspect the applicable MLG Stabilizer Brace. Inspect the adjacent area around the conduits for any signs of structural damage due to chafing. Report any Stabilizer Brace or structural damage findings to Bombardier Aerospace via the THO.

BT0206.0 5 MW REV 2004-10

# BOMBARDIER CONT INUATION SHEET 5 CURRENT REVISION A

BT

0206-05 MW REV 2004-10 

### MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . IS4Q2400029

Inspect These Cables & Adjacent Structure For Possible Signs Of Chafing

Note : The Routing May Vary Between AJC



### Figure 12 - RH Nacelle, Area Of Inspection 4 SHEET 15

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUM NO. 4 SH EET CONTINUATION SHEET 15402400029 16 5 CURRENT A REVISION



### 15 . Remove the harness support clamps mounted on the Nacelle "A" 

### frame and pull the harness down . Loosen the harness support clamps along the Nacelle side panel as shown. Cut and remove any tie wraps , tape , or spiral wrap . Inspect removed hardware for condition and replace as required . See Figure 13.


# i i I 

# I 

# I i 

# i I 

# . I
Remove These Support Clamps & Pull Cables Down 

# I RH Nacelle- View FWD On Aft Face Of 'A' Frwne 

### Figure 13- RH Nacelle, Support Clamps Removal 16. Prepare/clean the area shown in Figure 14 where the metal tie mounts (Item 7) & grommet (Item 2) are to be installed by cleaning with solvent (Isopropyl Alcohol) or equivalent. BT0206.()5 MW REV 2004-10

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MOD SU M NO . 4 SH EET CONTINUATION SHEET JS4Q2400029 17 SCU RRENT 

## r--A--~----~----~----~----~-----r-----r

**---- -r-----r-----r-----r----­**  REVISION

View Looking FWD On Aft Face Of 'A' Frame, RH Nacelle Shown , LH Nacelle Similar, P/N 85414025 Shown 

### Figure 14- RH Nacelle, Tie Mount & Grommet Installation Preparation 17. Install the Click Bond Tie Mounts (Item 7) using the dimensions 

### & locations shown in 

### Figures 16 & 17. Go to step 19 for alternate Tie Mounts (PI N CSP458-1) installation . 18 . Mark locations and prepare the area for bonding . 

### Surface preparation: Surface preparation is an important part of adhesive bonding . Lightly abrade glossy surfaces to improve the adhesive bond . Just prior to adhesive application , clean surfaces with solvent usi ng cl ean rags o r paper towels . Do not use shop towels , rags or paper wipes contaminated with oil , soap , or reclaimed solvents . Wash one small area at a time , and then dry with a clean cloth before the solvent evaporates to prevent redeposition of contaminants . To maintain a clean solvent supply, always pour the solvent on the BT0206-05 MW REV 2004-10

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUMNO . 4 SHEET CONTINUATION SHEET 15402400029 18 5 CURRENT A REVISION washing cloth . Click Bond CB200 Notes : Mix Ratio (8 : A) : 8 : 1 (volume), 7 : 1 (weight) , Working time at 75° F: 5 minutes (small quantities) . Cure time at 75° F : 30 minutes- handling strength. 2 hours90% of ultimate strength . 24 hours - full cure . Mixing 

### & Applying CB200 or CB200-40 Adhesive: Dispense 

### 8 parts of component 

### 8 and one part of component A (by volume) . M ix until a uniform color is obtained (or use a disposable mixing nozzle) . Apply to one of the surfaces to be bonded . To assure maximum bond strength , surfaces must be mated w ithin 

### 2 minutes . Use sufficient material to insure 100% joint fill when parts are mated . All adhesive application , part positioning , and clamping should occur before the 

### 5 min . working time of the mix has expired. Movement of the parts after working time has expired can result in bond strengths lower than normal. Insure that the assembly rema ins undisturbed for 30 minutes to allow adhesive cure to progress to the handling strength stage where the fixtures or clamps may be removed . Possible Adhesive (Item 13)

CB200 - 3.5 Gram Foil Pack,

Enough Adhesive For 4-5 Click Bond Bases

2 - Locate fixture on substrate using a template or by aligning index marks with drawn centerline. Press down on outer box to adhere foam tape to substrate. CB200-40 - 40 ml Dual Pack Syringe Cartridge , Used With CB100, CB81 & CB106

3 - Apply pressure to inner box to

actuate fixture. Plastic springs extrude adhesive bond line and apply positive pressure during adhesive cure . 1- Remove the backing from foam pads on fixture and discard . Apply adhesive to fastener base.

4 - After adhesive has cured, remove fixture by grasping with pliers & discard . 

### Figure 15 - Click 

### Bond 'Tie Mount' Installation Procedure
BT0206.()5 MW REV 2004-10

# BOMBARDIER CONTINUATION SHEET 5 CURRENT REVI SI ON 

## • A 

# • •

11.5" 

### lB' 

## "'

RH Nacelle- View Looking INBD, LH Side Panel 

### MODIFICATION SUMMARY PACKAGE 3 MODSUM NO. 15402400029

Install Ti e Mounts ( Item 7) (Qty 3), To The Noted Dimensions & Orientation Dimensi on Tolerances: (+ /- .030 " ) 4 SHEET 

### 19



### Figure 16 - RH Nacelle , Tie Mount Installation

**BT0 206~5**  MW REV 2004- 10

# BOMBARDIER CONTINUATION SH EET 5 CU RRENT A REVIS ION

Keep Cables Below Th is Reference Line, Al ig ned With Mach i ned Flange 

### MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET

(854l4787) IS4Q2400029

Remove Any Exi sting Tie Mounts That Don't MMt The Noted Di mensions &

Orientation As Shown
Install Tie Mounts (Item 7) (Qty 3), To The Noted Dimensions & Orientation Di mensi on Tolerances : (+/- . 030" ) 20

Vi ew looking FWD On Aft Face Of 'A' Frame, RH Nacelle Shown, LH Nacelle Similar 

### Figure 17 - RH Nacelle , Tie Mount Installation BT0206.{)5 MW REV 2004-10

# BOMBARDIER CONTINUATION SHEET 5 CURRENT REVISION A 

### MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET IS4Q2400029 21

19 . As a alternate to the Click Bond Tie Mounts (P/N B0816035CR3T) , it is acceptable to i nstall tie mount (P/N CSP458-1) using the dimensions & locations shown in Figures 16 

### & 17 with Fast-Weld #10 Epoxy Adhesive lAW SRM TASK 51 -22-35-02-01 or with EC- 2216 8/A Grey Adhesive lAW SRM TASK 51-22-20-02-01 . Lightly abrade and then clean the contact area of both the tie mount & structure surface before applying adhesive as deta iled in Step 18. After cure, seal the edges of the tie mount bases with PR 1422 81/2 lAW SRM TASK 51 -23-00-00-01. 20 . Install the MS21266-2N grommet in the location shown in Figure 17 with Fast Weld No . 10 ( Refer to SRM51-22-35) or with OHMS A6 .09 epoxy adhesive ( Refer to SRM51-22-45 ). 21 . Re-route 82440841 & 82440850 cables harnesses as shown in Figures 19 

### & 20 using the 6 new tie wrap mounts .

BT0206.05 MW REV 2004-10 Cables Are Moved Below This Reference Line, Aligned With Machined Flange



### Figure 

### 18 - RH Nacelle, Pre-154Q2400029 Mod Image

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODS U MNO . 4 SHEET CONTINUATION SHEET 154Q2400029 22 5 CU RRE NT

## r--A---1------+------r--**---1------+------r-- --~r-----1------+------r-----1-----­**  RE VISI ON

Re-Route & Secure The Cables As Shown Carefully Ti e Wrap Cables with (Item 8) To The Tie Mounts (Item 7) , 3 Locations .

Adjust Any Excessive Cable Length To Side Wall As Shown With Item 8 (Tie Wraps) Secure Cables Here To New Tie Mount With Item 8 (Tie Wrap) , 3

Locations Don 't Tighten Tie W,..,a Too Much As This Can Crush The Inner Conduit.

Cover Adjacent

Wiri ng With Spiral Wrap If

Required . Install Clamp (Item 12) On Transit i on , Reposition Existing Clamps As Shown , With Spacer (Item 10) &

Screw (Item 11

Exi st i ng Clamp P/N DSC184-9

(Ref)

Cover Hydraulic Lines With P rotective (Sp i ral Wrap, Item 1) If Required Ex isti ng Clamp P /N DSC184-6

( Ref)



### Figure 19 - RH Nacelle , Harness Cable Re-Routing BT0206-05 MW REV 2004-1 0

# BOMBARDIER MODIFICATION SUMMARY PACKAGE CONTINUATION SHEET 5 CURRENT A REVISION Re-Route & Secure The Cables As Shown

Adjust Backshell Clamp Angle FWD

As Required To Provide Clearance


### 326 I - J43

3261-J41 3 MODSUM NO . 15402400029

Adjust Cable Routing With Additional CR4's (Item 9) & " Tie Wraps (Item 8) If

**iiiiiiiiiiiiiiiii= :;;::;;;~...--,**  Required To Maintain Clearances



### Figure 

### 20 - RH Nacelle, Harness Cable Re-Routing 4 SH EET 23



### 22. If required, cover wires & cables with spiral wrap for additional protection lAW WDM 

### 20-12-10-201 - Wiring - Maintenance Practices. 

### 23. Re-tighten any support clamps that were moved or loosened. Add fiberglass tape and tie wraps where required to provide clearance and security. Ensure to re-lock any connector back shells that may have been adjusted . 

### 24. Remove all tools, equipment and unwanted materials from the RH Nacelle work area . 

### 25. Re-install the LH & RH MLG Stabilizer Strut lAW AMM 

### 32-11-16-400-801 . 26. With LH & RH MLG Forward Doors still removed from A/C, carry out Operational Test of the Landing Gear Primary Extension and Retraction System lAW AMM TASK 

### 32-31-00-710-801 . 27. Swing the landing gear up and leave in the up and locked position. BT0206-05 MW REV 2004-10 

# ,

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET CONT INUATION SHEET 1 5402400029 24 5 CURRENT A REVISION

28 . Inspect the re-worked area in the LH & RH Nace lle and ca rry out a clearance check between the MLG Stabilizer Brace and the electrical cab les . See Figure 21 for reference . Ensure there is 0 . 100" minimum clearance between the MLG Stabilizer Brace and the electrical cables .



## ... Figure 21 - LH & RH Nacelle, Clearance Checks BT0206.()5 MW REV 2004-10

# BOMBARDIER MODIFICATION SUMMARY PACKAGE 3 MODSUM NO . 4 SHEET CONTINUATI ON SHEET IS4Q2400029 

### 25 SCURRENT

## ~-**--+-----~--~-----r --** **--,_----+- ----r---~-----r----,_----+---~**  RE VISI ON

29 . After completion of the clearance checks, swing the gear down to the down & locked position . 

### 30 . Re-i nstall the MLG Forward Doors lAW AMM TASK 

### 32-12-11-400-801 and Rig th e doors lAW AMM TASK 

### 32-12-11-830-801 . 31 . Lower the a ircraft on j acks lAW TASK 

### 07- 10- 00- 582-801, Subtask 

### 07-10-00-582-021 , Section B . 

### 32 . Remove all tools , equipment (Tail stands and Trestles) and unwanted materials from the work area.



### General Notes: 

### 1. All work must be accomplished and signed off by qualified personnel as required by local regulatory authorities . 2. This rework is limited to the components as specified in IS4Q2400029 . 3. Weight and Balance - No Change . 4 . Electrical Load Analys is-No Change

BT0206-05 MW REV 2004-10