SB 670BA−57−024

Page 1 of 20

July 23/2014

SERVICE BULLETIN

Technical

Publications

THIS SERVICE BULLETIN IS SENT TO EACH OPERATOR. IF THE OPERATOR HAS LEASED AIRCRAFT,

TRANSFERRED SPARES IN THE LAST SIX MONTHS, SEND THIS SERVICE BULLETIN TO THE NEW

OWNER, UNLESS CONFIRMATION WAS RECEIVED THAT BOMBARDIER HAS INCLUDED THE NEW

OPERATOR ON THE DISTRIBUTION LIST.

SEND THIS SERVICE BULLETIN TO THE LESSEE. IF THE OPERATOR HAS SOLD AIRCRAFT OR

ATA SYSTEM: 57−12 NUMBER: 670BA−57−024

SUBJECT: Wings − Center Wing Secondary Structure − Inspection/Installation of the

Insulation Blankets in the Upper Wing Box Area

1. PLANNING INFORMATION

A. Effectivity

(1) Aircraft Affected:

AIRCRAFT MODEL SERVICE AIRCRAFT SERIAL

NUMBERS

PRODUCTION

AIRCRAFT

SERIAL NUMBERS

CL−600−2C10 10004, 10028−10029, 10033,

10039, 10048, 10054, 10077,

10082, 10108, 10112, 10118,

10120, 10138, 10164, 10183,

10185, 10187, 10204, 10206,

10217, 10247, 10258,

10267−10268, 10270−10271,

10274−10275, 10279, 10289,

10303, 10327

None
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

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July 23/2014

AIRCRAFT MODEL

PRODUCTION

AIRCRAFT

SERIAL NUMBERS

SERVICE AIRCRAFT SERIAL

NUMBERS

CL−600−2D15 and

CL−600−2D24

15001, 15014, 15018−15026,

15028−15029, 15031, 15034,

15036−15059, 15063,

15065−15066, 15068, 15071,

15074, 15076−15077, 15079,

15087, 15090, 15092,

15102−15104, 15106,

15110−15115, 15117−15124,

15126−15127, 15130−15131,

15134−15145, 15148−15152,

15154−15156, 15160, 15163,

15165, 15167, 15169, 15172,

15174−15175, 15177,

15179−15180, 15183−15185,

15188−15194, 15196,

15198−15199, 15201−15202,

15204, 15209−15210,

15213−15214, 15216, 15220,

15229−15230, 15232, 15236,

15238, 15241, 15243, 15245,

15247−15249, 15251−15279

None

NOTE: The instructions 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 service bulletins. Before you do this service

bulletin, examine all Supplemental Type Certificates (STCs) and

Supplemental Type Approvals (STAs) or equivalent action changes

to make sure you can complete this service bulletin.
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

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July 23/2014

B. Reason

(1) Condition

It is possible that the insulation blankets are not installed in the upper wing

box area, and if a bleed air leak is not sensed by the bleed leak detection

system and hot air goes in the direction of the adjacent structure and/or the

system components, an unwanted effect on the structural and the system

components can occur.

(2) Evidence

Some operators reported that they removed the insulation blankets from the

upper wing box area during the incorporation of the initial issue or Revision A

of Service Bulletin 670BA−36−016. Service Bulletin 670BA−36−016 gives the

procedure to add protective shields above the insulation blankets.

(3) Objective/Benefit

This service bulletin gives the procedure to do an inspection of the insulation

blanket installation in the upper wing box area .This will make sure that the

adjacent structure and/or the system components are fully protected.

C. Description

This service bulletin is divided into two parts: PART A and PART B.

PART A − Inspection of the Insulation Blankets in the Upper Wing Box Area

Circuit breakers are opened. The wheel bins are removed. If necessary, the

overwing fairings between FS697.00−FS735.00 are removed. An inspection is

done to find if some insulation blankets are installed in the upper wing box area. If

one or more insulation blanket(s) is/are missing, PART B of this service bulletin is

done. If removed, the left and the right overwing fairings between

FS697.00−FS735.00 are installed. The wheel bins are installed. The circuit breakers

are closed.

PART B − Installation of the Insulation Blankets in the Upper Wing Box Area

Circuit breakers are opened. The wheel bins and the overwing fairings are

removed. If necessary, the left and the right wing anti-ice ducts are removed. An

inspection is done to find if all the insulation blankets are installed in the upper wing

box area. An approved disposition is requested from Bombardier. If removed, the

left and the right wing anti-ice ducts are installed. The overwing fairings and the

wheel bins are installed. Circuit breakers are closed.
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

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July 23/2014

D. Compliance

Bombardier recommends that PART A of this service bulletin be done at no more

than 800 flight hours from the release date on this service bulletin, unless otherwise

directed by the airworthiness authority of the operator.

During the inspection done in PART A, if one or more insulation blanket(s) is/are

missing, Bombardier recommends that PART B of this service bulletin be done at

no more than 1200 flight hours from the release date on this service bulletin, unless

otherwise directed by the airworthiness authority of the operator.

NOTE: Initial Issue or Revision A of Service Bulletin 670BA−36−016, Pneumatic

− Bleed-Air Leak Detection and Warning System − Installation of

Protective Blankets and New Sensing Elements in the Main Landing Gear

and Overwing Areas, is a prerequisite to this service bulletin.

NOTE: It is not necessary to do this service bulletin if Revision B or a later revision

of Service Bulletin 670BA−36−016, Pneumatic − Bleed-Air Leak

Detection and Warning System − Installation of Protective Blankets and

New Sensing Elements in the Main Landing Gear and Overwing Areas,

is done.

NOTE: If it is not possible to complete all the instructions in this service bulletin

because of the configuration of the aircraft, speak with a representative

of Bombardier Customer Response Centre at phone number

514−855−8500 or send an e−mail at thd.crj@bombardier.com for

analysis and to get an approved disposition to complete this service

bulletin.

This service bulletin does not affect Airworthiness Limitations (AWLs) or Damage

Tolerance Inspections (DTIs).

E. Approval

The technical content of this service bulletin has been approved under the authority

of the TCCA Design Approval Organization No: DAO #93−Q−02.

F. Manpower

The man-hours given below are estimates for direct labor done by an experienced

crew on an aircraft prepared for maintenance.

These estimates do not include the time necessary for:

−Administrative functions such as planning, liaising, familiarization, and report writing.

−Non-productive elapsed time such as rest time, having meals, and crew shift

changes.

−Elapsed time such as for paint to dry, sealant to cure, and fuel tank venting.
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

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July 23/2014

−Preparation for modification (unless specified in the Accomplishment

Instructions) such as cleaning and getting parts, tools, consumables, and

ground equipment.

−Quality assurance inspections, troubleshooting and/or correction of

discrepancies found when a task is done.

−All other activities that are not considered by Bombardier as directly related to the

accomplishment of this procedure.

NOTE: For on-site labor assistance, please speak with a Fleet Services

representative for a quote. Contact the Fleet Services Team

through the CRC at 514-855-8500 or e-mail at

thd.crj@aero.bombardier.com.

FOR PART A

It will take an estimated 3.50 man-hours to complete PART A of this service bulletin.

The man-hours are divided in the table that follows (elapsed cure time is not

included in the man-hour summary given above):

TASK MAN-HOURS

(1) Job Set-Up 1.00

(2) Procedure 1.50

(3) Test N/A

(4) Job Close-Out 1.00

FOR PART B

There are no man-hour estimates provided for PART B of this service bulletin.

G. Material − Price and Availability

(1) There are no kits for this service bulletin. Some parts can be necessary to

accomplish the disposition supplied by Bombardier in PART B of this service

bulletin and are available from Bombardier.
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

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July 23/2014

(2) Please send a purchase order to the address below to schedule part delivery:

Bombardier

Service Bulletin Kit Support Team

123 Garratt Blvd, N42−24

Toronto, Ontario

Canada M3K 1Y5

Fax: 416-375-3060

Phone: 416-375-3920

e-mail: sbkits@aero.bombardier.com

Please contact the Service Bulletin Kit Support Team at the address above for

terms and conditions.

(3) Refer to paragraph 3.B. for a list of consumables for this service bulletin.

H. Tooling − Price and Availability

There are no tool kits for this service bulletin. Refer to paragraph 3.C. for a list of

special tools and equipment for this service bulletin.

I. Weight and Balance

Not changed.

J. Electrical Load Data

Not changed.

K. References

Refer to the SB Introduction document for definition or explanation of service

bulletin content.

Restriction and/or Special Instruction (RSI) C−57−1619−00, Revision D

Aircraft Maintenance Manual (AMM)

For Bombardier reference only: PCA 75848

L. Other Publications Affected

None.

M. Relationship Chart

Not applicable.
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

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July 23/2014

2. ACCOMPLISHMENT INSTRUCTIONS

PART A − Inspection of the Insulation Blankets in the Upper Wing Box Area

Reference Information

REFERENCE DESIGNATION

AMM 12−00−00−867−801 Standard Aircraft Configuration for Maintenance

AMM 53−82−82−000−801 Removal of the Overwing Fairing, FS697 − FS735

(171AL/172AR)

AMM 53−82−82−400−801 Installation of the Overwing Fairing, FS697 − FS735

(171AL/172AR)

AMM 53−83−89−000−801 Removal of the Main Landing Gear (MLG) Wheel Bin

AMM 53−83−89−400−801 Installation of the Main Landing Gear (MLG) Wheel Bin

A. Job Set-Up

(1) Make sure that the aircraft is in standard configuration for maintenance

(refer to AMM 12−00−00−867−801).

(2) Remove the left and the right MLG wheel bins

(refer to AMM 53−83−89−000−801).

B. Procedure

Refer to Figure 1 and Figure 2.

(1) Do an inspection of the upper wing box area to find if the insulation blankets

are installed as follows:

NOTE: Two layers of protection are installed. The insulation blanket is the

bottom layer and the protective shield is the top layer.

NOTE: Insulation blankets are silicone foam and fiberglass with a thickness of

0.25 in. (6.35 mm). Insulation blankets are white when they are new.

NOTE: Protective shields are fiberglass with a thickness of 0.13 in. (3.30 mm).

Protective shields are grey when they are new.

NOTE: It is permitted to carefully lift the protective shield if the edge of the

insulation blanket is not visible.
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

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July 23/2014

(a) Do an inspection to find if insulation blankets are installed between

LBL45.00 and RBL45.00 at FS794.50.

(b) Do an inspection to find if an insulation blanket is installed on the fuel

vent tube at BL0.00 near FS794.50.

NOTE: On the middle section of the fuel vent tube, there is a space

between the left protective shield and the right protective shield.

(c) Do an inspection to find if an insulation blanket is installed between

FS697.00 and FS735.00, near LBL30.00 or LBL45.00.

NOTE: If you cannot see an insulation blanket or you cannot get

access to the inspection area, the overwing fairing, FS697.00 −

FS735.00 panel 171AL can be removed (refer to AMM

53−82−82−000−801).

(d) Do an inspection to find if an insulation blanket is installed between

FS697.00 and FS735.00, near RBL30.00 or RBL45.00.

NOTE: If you cannot see an insulation blanket or you cannot get

access to the inspection area, the overwing fairing, FS697.00 −

FS735.00 panel 172AR can be removed (refer to AMM

53−82−82−000−801).

(2) If one or more insulation blanket(s) is/are missing, do PART B of this service

bulletin.

(3) For protective shields that were lifted, make sure they are lowered.

(4) If it is not possible to complete all the instructions in this service bulletin

because of the configuration of the aircraft, speak with a representative of

Bombardier Customer Response Centre at phone number 514−855−8500 or

send an e−mail at thd.crj@bombardier.com for analysis and to get an

approved disposition to complete this service bulletin.

C. Job Close-Out

(1) Remove all tools, equipment, and unwanted materials from the work area.
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

Page 9 of 20

July 23/2014

(2) If removed, install the access panels that follow:

PANEL NAME REFERENCE

171AL/

172AR

Overwing Fairing, FS697 − FS735 AMM 53−82−82−400−801

(3) Install the left and the right MLG wheel bins

(refer to AMM 53−83−89−400−801).

(4) When PART A of this service bulletin is completed, make this entry in the

applicable logbooks: Service Bulletin 670BA−57−024, Wings − Center Wing

Secondary Structure − Inspection/Installation of the Insulation Blankets in the

Upper Wing Box Area, PART A, incorporated."
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

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July 23/2014

PART B − Installation of the Insulation Blankets in the Upper Wing Box Area

Reference Information

REFERENCE DESIGNATION

AMM 12−00−00−867−801 Standard Aircraft Configuration for Maintenance

AMM 30−11−06−000−801 Removal of the Supply Duct

AMM 30−11−06−400−801 Installation of the Supply Duct

AMM 53−82−82−000−801 Removal of the Overwing Fairing, FS697 − FS735

(171AL/172AR)

AMM 53−82−82−400−801 Installation of the Overwing Fairing, FS697 − FS735

(171AL/172AR)

AMM 53−82−82−000−802 Removal of the Overwing Fairing, FS735 − FS768

(171BL/172BR)

AMM 53−82−82−400−802 Installation of the Overwing Fairing, FS735 − FS768

(171BL/172BR)

AMM 53−82−82−000−803 Removal of the Overwing Fairing, FS768 − FS801

(171CL/172CR)

AMM 53−82−82−400−803 Installation of the Overwing Fairing, FS768 − FS801

(171CL/172CR)

AMM 53−83−89−000−801 Removal of the Main Landing Gear (MLG) Wheel Bin

AMM 53−83−89−400−801 Installation of the Main Landing Gear (MLG) Wheel Bin

D. Job Set-Up

(1) Make sure that the aircraft is in standard configuration for maintenance

(refer to AMM 12−00−00−867−801).

(2) Open, safety, and tag the circuit breakers that follow:

CB PANEL CB NO. NAME

CBP−1 D7 A/ICE CONT CH A

CBP−1 K6 ACS CONT 2 CH A

CBP−1 L1 ACS CONT 1 CH A
SERVICE BULLETIN 670BA−57−024

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CB PANEL NAME CB NO.

CBP−2 J4 ACS CONT 1 CH B

CBP−2 K6 ACS R MAN

CBP−2 LOWER T1 A/ICE CONT CH B

CBP−2 LOWER T7 ACS CONT 2 CH B

CBP−2 LOWER T8 ACS L MAN

CBP−2 N9 MLG BAY OVHT DET

CBP−5 A3 APU BATT CONT

(3) Remove the access panels that follow:

PANEL NAME REFERENCE

171AL/

172AR

Overwing Fairing, FS697 −

FS735

AMM 53−82−82−000−801

171BL/

172BR

Overwing Fairing, FS735 −

FS768

AMM 53−82−82−000−802

171CL/

172CR

Overwing Fairing, FS768 −

FS801

AMM 53−82−82−000−803

(4) Remove the left and the right MLG wheel bins

(refer to AMM 53−83−89−000−801).

(5) If necessary, remove the applicable left and the applicable right supply duct(s)

(refer to AMM 30−11−06−000−801).
SERVICE BULLETIN 670BA−57−024

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E. Procedure

For aircraft 10004, 10028−10029, 10033, 10039, 10048, 10054, 10077, 10082, 10108,

10112, 10118, 10120, 10138, 10164, 10183, 10185, 10187, 10204, 10206, 10217,

10247, 10258, 10267−10268, 10270−10271, 10274−10275, 10279, 10289, 10303,

10327

Refer to Figure 2 and Figure 3.

(1) Do an inspection of the upper wing box area to find if all the insulation

blankets are installed.

NOTE: Two layers of protection are installed. The insulation blanket is the

bottom layer and the protective shield is the top layer.

NOTE: Insulation blankets are silicone foam and fiberglass with a thickness of

0.25 in. (6.35 mm). Insulation blankets are white when they are new.

NOTE: Protective shields are fiberglass with a thickness of 0.13 in. (3.30 mm).

Protective shields are grey when they are new.

NOTE: It is permitted to carefully lift the protective shield if the edge of the

insulation blanket is not visible.

NOTE: It is permitted to open the Velcro of the protective shield if the edge of

the insulation blanket is not visible.

(2) Speak with a representative of Bombardier Customer Response Centre at

phone number 514−855−8500 or send an e−mail at

thd.crj@bombardier.com for analysis and to get an approved disposition to

complete this service bulletin.

For aircraft 15001, 15014, 15018−15026, 15028−15029, 15031, 15034,

15036−15059, 15063, 15065−15066, 15068, 15071, 15074, 15076−15077, 15079,

15087, 15090, 15092, 15102−15104, 15106, 15110−15115, 15117−15124,

15126−15127, 15130−15131, 15134−15145, 15148−15152, 15154−15156, 15160,

15163, 15165, 15167, 15169, 15172, 15174−15175, 15177, 15179−15180,

15183−15185, 15188−15194, 15196, 15198−15199, 15201−15202, 15204,

15209−15210, 15213−15214, 15216, 15220, 15229−15230, 15232, 15236, 15238,

15241, 15243, 15245, 15247−15249, 15251−15279

Refer to Figure 2 and Figure 4.

(3) Do an inspection of the upper wing box area to find if all the insulation

blankets are installed.

NOTE: Two layers of protection are installed. The insulation blanket is the

bottom layer and the protective shield is the top layer.
SERVICE BULLETIN 670BA−57−024

SB 670BA−57−024

Page 13 of 20

July 23/2014

NOTE: Insulation blankets are silicone foam and fiberglass with a thickness of

0.25 in. (6.35 mm). Insulation blankets are white when they are new.

NOTE: Protective shields are fiberglass with a thickness of 0.13 in. (3.30 mm).

Protective shields are grey when they are new.

NOTE: It is permitted to carefully lift the protective shield if the edge of the

insulation blanket is not visible.

NOTE: It is permitted to open the Velcro of the protective shield if the edge of

the insulation blanket is not visible.

(4) Speak with a representative of Bombardier Customer Response Centre at

phone number 514−855−8500 or send an e−mail at

thd.crj@bombardier.com for analysis and to get an approved disposition to

complete this service bulletin.

For all aircraft

(5) For protective shields that had Velcro opened, make sure the Velcro is closed.

(6) For protective shields that were lifted, make sure they are lowered.
SERVICE BULLETIN 670BA−57−024

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July 23/2014

F. Job Close-Out

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

(2) If removed, install the left and the right supply duct(s)

(refer to AMM 30−11−06−400−801).

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

CB PANEL CB NO. NAME

CBP−1 D7 A/ICE CONT CH A

CBP−1 K6 ACS CONT 2 CH A

CBP−1 L1 ACS CONT 1 CH A

CBP−2 J4 ACS CONT 1 CH B

CBP−2 K6 ACS R MAN

CBP−2 LOWER T1 A/ICE CONT CH B

CBP−2 LOWER T7 ACS CONT 2 CH B

CBP−2 LOWER T8 ACS L MAN

CBP−2 N9 MLG BAY OVHT DET

CBP−5 A3 APU BATT CONT

(4) Install the access panels that follow:

PANEL NAME REFERENCE

171AL/

172AR

Overwing Fairing, FS697 −

FS735

AMM 53−82−82−400−801

171BL/

172BR

Overwing Fairing, FS735 −

FS768

AMM 53−82−82−400−802

171CL/

172CR

Overwing Fairing, FS768 −

FS801

AMM 53−82−82−400−803

(5) Install the left and the right MLG wheel bins

(refer to AMM 53−83−89−400−801).

(6) When PART B of this service bulletin is completed, make this entry in the

applicable logbooks: Service Bulletin 670BA−57−024, Wings − Center Wing

Secondary Structure − Inspection/Installation of the Insulation Blankets in the

Upper Wing Box Area, PART B, incorporated."
SERVICE BULLETIN 670BA−57−024

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July 23/2014

Inspection of the Insulation Blankets

Figure 1 (Sheet 1 of 1)

ba8235a01.cgm, kp, May 27, 2014

A

TYPICAL

A

3

RBL30.00

FS735.00

FS697.00

LBL30.00

FS794.50

BL0.00

LBL45.00

RBL45.00

CENTER WING

BOX (REF)

FUEL VENT

TUBE (REF)

3

NOTES

1. Inspection areas are shaded.

2. It is permitted to carefully lift the protective shield

 if the edge of the insulation blanket is not visible.

 On the middle section of the fuel vent tube,

 there is a space between the left and the

 right protective shields.
SERVICE BULLETIN 670BA−57−024

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July 23/2014

Examples of Insulation Blanket Installation

Figure 2 (Sheet 1 of 2)

ba8236a01.cgm, kp, May 20, 2014

A

FS794.50

RBL45.00

RBL30.00

LBL30.00

FS735.00

FS697.00

BL0.00

INSULATION

BLANKET (REF)

A

PROTECTIVE

SHIELD (REF)

B

TYPICAL BLANKET INSTALLATION

B

LBL45.00
SERVICE BULLETIN 670BA−57−024

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July 23/2014

Examples of Insulation Blanket Installation

Figure 2 (Sheet 2 of 2)

ba8236a02.cgm, kp, May 6, 2014

FS794.50 LBL45.00

RBL30.00

LBL30.00

FS735.00

FS697.00

BL0.00

INSULATION

BLANKET (REF)

A

PROTECTIVE

SHIELD (REF)

C

TYPICAL BLANKET INSTALLATION −

FUEL VENT TUBE MIDDLE SECTION

RBL45.00

C
SERVICE BULLETIN 670BA−57−024

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July 23/2014

Inspection of the Insulation Blankets on CRJ700 Aircraft

Figure 3 (Sheet 1 of 1)

A

ba8239a01.cgm, kp, May 27, 2014

C

2

LEFT SIDE SHOWN

RIGHT SIDE OPPOSITE

2

NOTES

1. Protective shields not shown

 for clarity.

 Above insulation blanket

 not shown for clarity.

3. The shaded areas show the

 locations of the insulation

 blankets.

LEFT SIDE SHOWN

RIGHT SIDE OPPOSITE

B

A

RBL30.00

LBL30.00

FS794.50

LBL45.00

RBL45.00

CENTER WING

BOX (REF)

FS697.00

B

C

BL0.00

B

C
SERVICE BULLETIN 670BA−57−024

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July 23/2014

Inspection of the Insulation Blankets on CRJ900 Aircraft

Figure 4 (Sheet 1 of 1)

ba8240z01.cgm, kp, May 27, 2014

A

C

2

LEFT SIDE SHOWN

RIGHT SIDE OPPOSITE

2

NOTES

1. Protective shields not shown

 for clarity.

 Above insulation blanket

 not shown for clarity.

3. The shaded areas show the

 locations of the insulation

 blankets.

A

RBL30.00

LBL30.00

FS794.50 LBL45.00

RBL45.00

CENTER WING

BOX (REF)

FS697.00

B

C

BL0.00

LEFT SIDE SHOWN

RIGHT SIDE OPPOSITE

B

B

C
SERVICE BULLETIN 670BA−57−024

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July 23/2014

3. MATERIAL INFORMATION

A. Kit Information

None.

B. Consumable Information

For a list of consumables, refer to the different tasks that are given as references in

this service bulletin.

C. Special Tools and Equipment

For a list of special tools and equipment, refer to the different tasks that are given

as references in this service bulletin.

D. Disposition of Parts

None.

1 
THANK YOU FOR YOUR COMMENTS

SERVICE BULLETIN FEEDBACK FORM/COMPLIANCE SHEET

(YOUR COMMENTS HELP US WRITE BETTER SERVICE BULLETINS)

Service Bulletin No.: 670BA-57-024 Revision: --

Aircraft Serial Number: Date:

STRONGLY

DISAGREE

DISAGREE AGREE STRONGLY

AGREE

Instructions to do the service bulletin are

accurate.

Comments:

- - - -

Figure(s), picture(s), and/or Appendix

were helpful to do the service bulletin.

Comments:

- - - -

Part(s) or kit(s) agreed with the service

bulletin requirement.

Comments:

- - - -

The service bulletin was accomplished

within the estimated time given.

Comments:

- - - -

Overall, I was satisfied with this service

bulletin.

Comments:

- - - -

Operator: Service Centre:

Name: Telephone or Fax:

FAX your comments or feedback to (450) 476---7300

or e-mail to crj_sb_evaluation_form@aero.bombardier.com