SB A670BA ---32---030

Page 1 of 1

Aug 06/2013

SERVICE BULLETIN

REVISION TRANSMITTAL SHEET

ALERT SERVICE BULLETIN A670BA ---32 ---030

SUBJECT: Landing Gear --- Main Landing Gear (MLG) and Doors --- Inspection of the

MLG Inboard Doors and MLG Fairing

This page transmits:

Revision D of Service Bulletin A670BA --- 32 --- 030, dated Aug 06/2013

and

Revision B of Appendix A, dated Mar 13/2013

For aircraft that have done a previous issue of this service bulletin, refer to

the time compliance section.

Reason:

Revised Planning Information, paragraph 1., to:

Change and add some statements in the time compliance paragraph 1. D.

Change the revision of the RSI and the modification summary in the references

paragraph.

Revised Accomplishment Instructions, paragraph 2., to:

Add steps in PART A.

Change some effectivity statements in PART E.

This revision also includes small editorial changes that do not have an effect on the technical

content.

Instructions:

Discard the copy of Service Bulletin A670BA --- 32 --- 030, Revision C, dated Mar 13/2013.

Replace with the copy attached.

Service Bulletin History:

Initial issue, dated Oct 18/2010.

Revision A, dated Oct 22/2010.

Revision B, dated Nov 03/2011.

Revision C, dated Mar 13/2013.

1
SB A670BA ---32---030

Page 1 of 56

Oct 18/2010

Revision D, Aug 06/2013

ALERT 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 COMMERCIAL AIRCRAFT

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: 32 ---10 NUMBER: A670BA ---32 ---030

SUBJECT: Landing Gear --- Main Landing Gear (MLG) and Doors --- Inspection of the

MLG Inboard Doors and MLG Fairing

1. PLANNING INFORMATION

A. Effectivity

(1) Aircraft Affected:

AIRCRAFT MODEL SERVICE AIRCRAFT

SERIAL NUMBERS

PRODUCTION

AIRCRAFT SERIAL

NUMBERS

CL ---600---2C10 10002 thru 10333 10334 and subsequent

serial numbers [1]

CL ---600---2D15 and

CL ---600---2D24

15001 thru 15284 15285 and subsequent

serial numbers [1]

[1] Aircraft will have this change incorporated before delivery.

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),

Supplemental Type Approvals (STAs), or equivalent action changes

to make sure you can complete this service bulletin.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 2 of 56

Oct 18/2010

Revision D, Aug 06/2013

B. Reason

(1) Condition

During the retraction phase, the left and/or the right MLG inboard door can

travel past the internal metallic stiffener in the MLG fairing seal of the MLG

fairing. If this occurs, it is possible for the MLG inboard door to get caught on

the MLG fairing and prevent the full extension of the MLG when it is selected

down.

(2) Evidence

One left and one right MLG-up landings occurred on in-service aircraft.

(3) Objective/Benefit

This service bulletin gives the procedure to do a detailed visual inspection of

the MLG inboard doors, MLG fairing and adjacent structure of the MLG

inboard doors. This service bulletin also gives the procedure to replace the

damaged MLG fairing seal(s) and to do the clearance check of the MLG door

or, if necessary, to remove and/or install a MLG door.

C. Description

This service bulletin is divided into six parts: PART A, PART C, PART D, PART E,

PART F and PART G.

PART A --- Inspection of the MLG Inboard Doors, and MLG Fairing and

Adjacent Structure

A detailed visual inspection of the MLG inboard doors, MLG fairing and MLG

inboard-door adjacent structure is done. If a MLG fairing seal on the MLG fairing

has damage, PART C, PART E, PART F, and/or PART G, of this service bulletin are

done. If there is damage on a MLG inboard door, the MLG inboard door is repaired

and/or the Customer Response Center (CRC) is called for a disposition and/or

PART C of the service bulletin is done. If there is damage on the MLG fairing and/or

the roller, and/or missing fasteners from the stops or wedge, the MLG fairing is

repaired and/or the CRC is called for a disposition.

PART B IS NO LONGER APPLICABLE

PART C --- Removal of the MLG Inboard Door(s)

Circuit breakers are opened. The MLG inboard door(s) is/are removed. The circuit

breakers are closed.
ALERT SERVICE BULLETIN A670BA ---32 ---030

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Page 3 of 56

Oct 18/2010

Revision D, Aug 06/2013

For aircraft that have incorporated PART C of this service bulletin

PART D --- Installation of the MLG Inboard Door(s)

Circuit breakers are opened. The MLG inboard door(s) is/are installed. The circuit

breakers are closed. The clearance check of the MLG door(s) is done. PART A of

this service bulletin is done.

For aircraft that have damage or not on the MLG fairing seal P/N CC670 ---39244 ---1

and/or P/N CC670 ---39244 ---2 of the MLG fairing

PART E --- Replacement of the MLG fairing seals P/N CC670 ---39244 ---1 and

CC670 ---39244 ---2 with P/N CC670 ---39244 ---5 and CC670 ---39244 ---6 on the

MLG Fairing

For aircraft that replacing the seals because of damage

Circuit breakers are opened. The aircraft is put on jacks. The two MLG fairing seals

are replaced. The clearance check on the MLG inboard door is done. The aircraft is

removed from jacks. The circuit breakers are closed.

For aircraft that have no damage on the seals

The two MLG fairing seals are replaced.

For aircraft that have damage on the left MLG fairing seal P/N CC670 ---39244 ---5 of

the MLG Fairing

PART F --- Replacement of the left MLG fairing seal P/N CC670 ---39244 ---5 on

the MLG Fairing

The MLG and NLG safety pins are installed. The LH MLG fairing seal is replaced.

The MLG and NLG safety pins are removed..

For aircraft that have damage on the right MLG fairing seal P/N CC670 ---39244 ---6

of the MLG Fairing

PART G --- Replacement of the right MLG fairing seal P/N CC670 ---39244 ---6 on

the MLG Fairing

The MLG and NLG safety pins are installed. The right MLG fairing seal is replaced.

The MLG and NLG safety pins are removed.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 4 of 56

Oct 18/2010

Revision D, Aug 06/2013

D. Compliance

Alert Service Bulletin.

Bombardier Aerospace recommends that this service bulletin be done as shown in

the tables below, unless otherwise directed by the airworthiness authority of the

operator:

NOTE: PART A, PART C, PART E, PART F and PART G referred in the tables

below refer to PART A, PART C, PART E, PART F and PART G of this

service bulletin.

For Aircraft 10002 thru 10313, 15001 thru 15238, and 15240 thru 15255 that have rubber

seal P/N CC670 ---39244 ---1 and CC670 ---39244 ---2 installed

TABLE A

COMPLIANCE RESULT INSTRUCTIONS

REPEATED

INSPECTION

INTERVAL

Do PART A of this

service bulletin at

no more than 50

flight cycles from

the initial release

date on this service

bulletin.

If no damage is

found.

None

See note ¡ below.

If the MLG inboard

door(s) is/are installed,

do PART A at intervals

of 200 flight hours from

the initial inspection

date.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

OR

PART E to be done before

next flight.

If the MLG inboard

door(s) is/are installed,

refer to TABLE B

for details.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

OR
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 5 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE

REPEATED

INSPECTION

INTERVAL

RESULT INSTRUCTIONS

Do PART A of this

service bulletin at

no more than 50

flight cycles from

the initial release

date on this service

bulletin.

If damage is

found on the

MLG fairing

seal(s).

If damage is found on the

left and/or the right MLG

fairing seal(s), PART E to

be done before next flight

And/Or

If necessary, removal of the

left and/or the right MLG

inboard door(s) (PART C)

to be done before next

flight.

See note © below.

See note ¡ below.

If PART E is

incorporated and the

MLG inboard door(s)

is/are installed, refer to

TABLE B for details.

Or

If only one of the

fairing seals is

damage,

if only the related MLG

inboard door is

removed (PART C)

and, if PART E is not

incorporated,

do PART A at intervals

of 200 flight hours from

the initial inspection

date.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

AND/OR
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 6 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE

REPEATED

INSPECTION

INTERVAL

RESULT INSTRUCTIONS

Do PART A of this

service bulletin at

no more than 50

flight cycles from

the initial release

date on this service

bulletin.

If damage is

found on the

MLG inboard

door(s)

The damage is repaired.

And/Or

Disposition from the CRC

to be incorporated before

next flight.

And/Or

If necessary, removal of the

left and/or the right MLG

inboard door(s) (PART C)

to be done before next

flight.

See note © below.

See note ¡ below.

If PART E is

incorporated and the

MLG inboard door(s)

is/are installed, refer to

TABLE B for details.

Or

If PART E is not

incorporated and the

MLG inboard door(s)

is/are installed, do

PART A at intervals of

200 flight hours from

the initial inspection

date.

Or

Not necessary if

the two MLG inboard

doors are removed

(PART C).

AND/OR

If damage is

found on the

fairing

and/or

if damage is

found on the

stops and/or

the wedge

(installed on the

forward and/or

the aft spars).

The damage is repaired.

And/Or

Disposition from the CRC

to be incorporated on the

fairing before next flight.

See note ¡ below.

If PART E is

incorporated and the

MLG inboard door(s)

is/are installed, refer to

TABLE B for details.

Or

If PART E is not

incorporated and the

MLG inboard door(s)

is/are installed, do

PART A at intervals of

200 flight hours from

the initial inspection

date.

Or

Not necessary if

the two MLG inboard

doors are removed

(PART C).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 7 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE

REPEATED

INSPECTION

INTERVAL

RESULT INSTRUCTIONS

¡ For aircraft that have had the initial issue, Revision A and/or Revision B of this service

bulletin incorporated, it is necessary to do the subsequent inspection as follows.For aircraft

that have the inspection scheduled in less than 200 flight hours, the inspection must be done

at the scheduled 600 flight hours. Subsequent inspections must be done as shown in TABLE

A.For aircraft that have the inspection scheduled in 200 flight hours or more, the inspection

must be done at no more than 200 flight hours from the release date of Revision C of this

service bulletin. Subsequent inspections must be done as shown in TABLE A.

© When PART C is done, make sure that the aircraft agrees with the Configuration

Deviation List (CDL) of the AFM, for flying without inboard MLG inboard door(s).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 8 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE CONDITION OF

AIRCRAFT

INSTRUCTIONS

REPEATED

INSPECTION

INTERVAL

Do PART E of this

service bulletin at

no more than 2500

flight hours or one

year, from the

release date of

Revision C of this

service bulletin,

whichever comes

first.

If the two MLG

inboard doors

are installed

If the left and/or the right

MLG door is/are installed,

PART A and PART E to be

done before next flight

And

If necessary, removal of the

left or the right MLG

inboard door (PART C) to

be done before next flight.

See note © below.

If the left and/or the

right MLG inboard

door is/are installed,

refer to TABLE B for

details.

Or

Remove the left and the

right doors (PART C) to be

done before next flight.

See note © below.

Not necessary if the

two MLG inboard

doors are removed

(PART C).

OR

If one MLG

inboard door is

removed

If the left or the right MLG

door is installed, PART A

and PART E to be done

before next flight.

And/Or

If necessary, removal of the

second MLG inboard door

(PART C) to be done

before next flight.

See note © below.

If the left or the right

MLG inboard door is

installed, refer to

TABLE B for details.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

OR

If the two MLG

inboard doors

are removed.

At the installation of the left

and/or the right MLG

inboard door(s), PART A

and PART E to be done

before next flight.

If the MLG

inboard door(s) is/are

installed, refer to

TABLE B for details.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

© When PART C is done, make sure that the aircraft agrees with the Configuration

Deviation List (CDL) of the AFM, for flying without inboard MLG inboard door(s).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 9 of 56

Oct 18/2010

Revision D, Aug 06/2013

For Aircraft 10314 thru 10333, 15239, and 15256 thru 15284 that have the rubber seal

P/N CC670 ---39244 ---1 and CC670 ---39244 ---2 installed

TABLE A

COMPLIANCE RESULT INSTRUCTIONS

REPEATED

INSPECTION

INTERVAL

Do PART A of this

service bulletin at

no more than 200

flight hours from the

initial release date

on this service

bulletin.

If no damage is

found.

None

See note ¡ below.

If the MLG inboard

door(s) is/are installed,

do PART A at intervals

of 200 flight hours from

the initial inspection

date.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

OR

PART E to be done before

next flight.

If the MLG inboard

door(s) is/are installed,

refer to TABLE B

for details.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

OR
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 10 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE

REPEATED

INSPECTION

INTERVAL

RESULT INSTRUCTIONS

Do PART A of this

service bulletin at

no more than 200

flight hours from the

initial release date

on this service

bulletin.

If damage is

found on the

MLG fairing

seal(s).

If damage is found on the

left and/or the right MLG

fairing seal(s), PART E to

be done before next flight

And/Or

If necessary, removal of the

left and/or the right MLG

inboard door(s) (PART C)

to be done before next

flight.

See note © below.

See note ¡ below.

If PART E is

incorporated and the

MLG inboard door(s)

is/are installed, refer to

TABLE B for details.

Or

If only one of the

fairing seals is

damage,

if only the related MLG

inboard door is

removed (PART C)

and, if PART E is not

incorporated,

do PART A at intervals

of 200 flight hours from

the initial inspection

date.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

AND/OR
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 11 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE

REPEATED

INSPECTION

INTERVAL

RESULT INSTRUCTIONS

Do PART A of this

service bulletin at no

more than 200 flight

hours from the

release date on this

service bulletin

If damage is

found on the

MLG inboard

door(s)

The damage is repaired.

And/Or

Disposition from the CRC

to be incorporated before

next flight.

And/Or

If necessary, removal of the

left and/or the right MLG

inboard door(s) (PART C)

to be done before next

flight.

See note © below.

See note ¡ below.

If PART E is

incorporated and the

MLG inboard door(s)

is/are installed, refer to

TABLE B for details.

Or

If PART E is not

incorporated and the

MLG inboard door(s)

is/are installed, do

PART A at intervals of

200 flight hours from

the initial inspection

date.

Or

Not necessary if

the two MLG inboard

doors are removed

(PART C).

AND/OR

If damage is

found on the

fairing

and/or

if damage is

found on the

stops and/or

the wedge

(installed on the

forward and/or

the aft spars).

The damage is repaired.

And/Or

Disposition from the CRC

to be incorporated on the

fairing before next flight.

See note ¡ below.

If PART E is

incorporated and the

MLG inboard door(s)

is/are installed, refer to

TABLE B for details.

Or

If PART E is not

incorporated and the

MLG inboard door(s)

is/are installed, do

PART A at intervals of

200 flight hours from

the initial inspection

date.

Or

Not necessary if

the two MLG inboard

doors are removed

(PART C).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 12 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE

REPEATED

INSPECTION

INTERVAL

RESULT INSTRUCTIONS

¡ For aircraft that have had the initial issue, Revision A and/or Revision B of this service

bulletin incorporated, it is necessary to do the subsequent inspection as follows.For aircraft

that have the inspection scheduled in less than 200 flight hours, the inspection must be done

at the scheduled 600 flight hours. Subsequent inspections must be done as shown in TABLE

A.For aircraft that have the inspection scheduled in 200 flight hours or more, the inspection

must be done at no more than 200 flight hours from the release date of Revision C of this

service bulletin. Subsequent inspections must be done as shown in TABLE A.

© When PART C is done, make sure that the aircraft agrees with the Configuration

Deviation List (CDL) of the AFM, for flying without inboard MLG inboard door(s).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 13 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE CONDITION OF

AIRCRAFT

INSTRUCTIONS

REPEATED

INSPECTION

INTERVAL

Do PART E of this

service bulletin at

no more than 2500

flight hours or one

year, from the

release date of

Revision C of this

service bulletin,

whichever comes

first.

If the two MLG

inboard doors

are installed

If the left and/or the right

MLG door is/are installed,

PART A and PART E to be

done before next flight

And

If necessary, removal of the

left or the right MLG

inboard door (PART C) to

be done before next flight.

See note © below.

If the left and/or the

right MLG inboard

door is/are installed,

refer to TABLE B for

details.

Or

Remove the left and the

right doors (PART C) to be

done before next flight.

See note © below.

Not necessary if the

two MLG inboard

doors are removed

(PART C).

OR

If one MLG

inboard door is

removed

If the left or the right MLG

door is installed, PART A

and PART E to be done

before next flight.

And/Or

If necessary, removal of the

second MLG inboard door

(PART C) to be done

before next flight.

See note © below.

If the left or the right

MLG inboard door is

installed, refer to

TABLE B for details.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

OR

If the two MLG

inboard doors

are removed.

At the installation of the left

and/or the right MLG

inboard door(s), PART A

and PART E to be done

before next flight.

If the MLG

inboard door(s) is/are

installed, refer to

TABLE B for details.

Or

Not necessary if the

two MLG inboard

doors are removed

(PART C).

© When PART C is done, make sure that the aircraft agrees with the Configuration

Deviation List (CDL) of the AFM, for flying without inboard MLG inboard door(s).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 14 of 56

Oct 18/2010

Revision D, Aug 06/2013

For Aircraft 10002 thru 10333, 15001 thru 15284, that have rubber seals

P/N CC670 ---39244 ---5 and CC670 ---39244 ---6 installed (PART E)

TABLE B

COMPLIANCE

RESULT INSTRUCTIONS REPEATED

INSPECTION

INTERVAL

Do PART A of

this service

bulletin at no

more than 600

flight hours

from the installation of the

seals

CC670---39244

---5 and

CC670---39244

---6 (PART E).

If no damage is found. None

If the MLG inboard

door(s) is/are installed,

do PART A at intervals

of 600 flight hours from

the initial inspection

date.

Or

Not necessary if the two

MLG inboard doors are

removed (PART C).

OR

If damage is found on

the left and/or the right

MLG fairing seal(s).

If the left MLG fairing

seal is damaged, PART

F to be done before

next flight

And/or

If the right MLG fairing

seal is damaged, PART

G to be done before

next flight

And/or

If necessary, the

removal of the left

and/or the right MLG inboard door(s)

(PART C) to be done

before next flight.

See note ¡ below.

If the MLG inboard

door(s) is/are installed,

do PART A at intervals

of 600 flight hours from

the initial inspection

date.

Or

Not necessary if the two

MLG inboard doors are

removed (PART C).

AND/OR
ALERT SERVICE BULLETIN A670BA ---32 ---030

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Page 15 of 56

Oct 18/2010

Revision D, Aug 06/2013

COMPLIANCE

REPEATED

INSPECTION

INTERVAL

RESULT INSTRUCTIONS

Do PART A of

this service

bulletin at no

more than 600

flight hours

from the installation of the

seals

CC670---39244

---5 and

CC670---39244

---6 (PART E).

If damage is found on the

left and/or the right MLG

inboard door(s).

The damage is repaired

And/Or

Disposition from the

CRC to be

incorporated on the left

and/or the right MLG inboard door(s) before

next flight

And/Or

If necessary, the left

and/or the right MLG inboard door(s) to

be removed (PART C)

See note ¡ below.

If the MLG inboard

door(s) is/are installed,

do PART A at intervals

of 600 flight hours from

the initial inspection

date.

Or

Not necessary if the two

doors are

removed.

AND/OR

If damage is found on the

fairing

and/or

if damage is found on the

stops and/or the wedge

(installed on the forward

and/or the aft spars).

The damage is repaired

And/Or

Disposition from the

CRC to be

incorporated before

next flight.

If the MLG inboard

door(s) is/are installed,

do PART A at intervals

of 600 flight hours from

the initial inspection

date.

Or

Not necessary if the two

doors are

removed.

¡ When PART C is done, make sure that the aircraft agrees with the Configuration

Deviation List (CDL) of the AFM, for flying without inboard MLG door(s).

For aircraft that have incorporated PART C of this service bulletin

PART D of this service bulletin can be done at the discretion of the operator.

For Aircraft that have rubber seals P/N CC670 ---39244 ---1 and CC670 ---39244 ---2

installed

When PART D of this service bulletin is done, it is necessary to do PART A before

next flight. It is also necessary to do PART A at intervals of 200 flight hours from the

incorporation date of PART D of this service bulletin.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 16 of 56

Oct 18/2010

Revision D, Aug 06/2013

OR

For Aircraft that have rubber seals P/N CC670 ---39244 ---5 and CC670 ---39244 ---6

installed

When PART D and PART E of this service bulletin are done. It is necessary to do

PART A before next flight. It is also necessary to do PART A at intervals of 600 flight

hours from the incorporation date of PART D of this service bulletin.

For all aircraft

NOTE: It is not necessary to do this service bulletin if Service Bulletin

670BA ---32---040, Landing Gear --- Main Landing Gear and Doors ---

Increase Clearances Between Fairing and Main-Landing-Gear Doors, is

done.

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.

---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 email at

thd.crj@aero.bombardier.com.
ALERT SERVICE BULLETIN A670BA ---32 ---030

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Page 17 of 56

Oct 18/2010

Revision D, Aug 06/2013

PART A

It will take an estimated 1.25 man-hours to complete PART A of this service bulletin.

The man-hours are divided as shown in the table that follows:

TASK MAN-HOURS

(1) Job Set-Up 0.25

(2) Procedure 0.75

(3) Test N/A

(4) Job Close-Out 0.25

PART C

It will take an estimated 2.0 man-hours to complete PART C of this service bulletin.

The man-hours are divided as shown in the table that follows:

TASK MAN-HOURS

(1) Job Set-Up 0.5

(2) Procedure 1.0

(3) Test N/A

(4) Job Close-Out 0.5

NOTE: The man-hours for the procedure are for one MLG door only. An

additional 1.0 man-hour is necessary to remove a second MLG door.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 18 of 56

Oct 18/2010

Revision D, Aug 06/2013

PART D

It will take an estimated 8.0 man---hours to complete PART D of this service bulletin.

The man---hours are divided as shown in the table that follows:

TASK MAN-HOURS

(1) Job Set-Up 1.5

(2) Procedure 3.0

(3) Test 2.0

(4) Job Close-Out 1.5

NOTE: The man-hours for the procedure are for one MLG door only. An

additional 1.0 man-hour is necessary to install a second MLG door.

PART E

It will take an estimated 10.0 man-hours to complete PART E of this service bulletin.

The man-hours are divided as shown in the table that follows:

TASK MAN-HOURS

(1) Job Set-Up 1.5

(2) Procedure 3.0

(3) Test 4.0

(4) Job Close-Out 1.5
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 19 of 56

Oct 18/2010

Revision D, Aug 06/2013

PART F

It will take an estimated 2.0 man-hours to complete PART F of this service bulletin.

The man-hours are divided as shown in the table that follows:

TASK MAN-HOURS

(1) Job Set-Up 0.5

(2) Procedure 1.0

(3) Test N/A

(4) Job Close-Out 0.5

PART G

It will take an estimated 2.0 man-hours to complete PART G of this service bulletin.

The man-hours are divided as shown in the table that follows:

TASK MAN-HOURS

(1) Job Set-Up 0.5

(2) Procedure 1.0

(3) Test N/A

(4) Job Close-Out 0.5
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 20 of 56

Oct 18/2010

Revision D, Aug 06/2013

G. Material --- Price and Availability

(1) The parts in the table that follows are necessary to do PART E or PART F or

PART G of this service bulletin and are available from Bombardier Commercial

Aircraft.

PART NUMBER NAME QTY

MS21043---08 Nut, Self Locking Nut 28

(2) The kits in the tables that follow are necessary to do PART E or PART F or

PART G of this service bulletin and are available from Bombardier Commercial

Aircraft.

NOTE: For a list of kit contents, refer to paragraph 3.A.

For PART E or PART F

KIT NUMBER NAME

670BA32040K5 Left Fairing Forward Seal

For PART E or PART G

KIT NUMBER NAME

670BA32040K6 Right Fairing Forward Seal

(3) 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

Email: sbkits@aero.bombardier.com

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

terms and conditions.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 21 of 56

Oct 18/2010

Revision D, Aug 06/2013

(4) 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

The weight and balance data will change if PART C, PART D or PART E is

incorporated:

For aircraft that have had PART C or PART D of this service bulletin incorporated

Refer to the Configuration Deviation List in Chapter 8 of the Airplane Flight Manual

(AFM) for the weight and balance data.

For aircraft that have had PART E of this service bulletin incorporated

For CL ---600 ---2C10 aircraft

WEIGHT ARM MOMENT ¡

0.1 lb 800.3 in. 0.080 ( 1000 lb-in.)

0.05 kg 20.33 m 0.0009 (1000 kg-m)

¡ The value in the Moment column is divided by 1000.

Refer to Weight and Balance Manual CSP A ---041.

For CL ---600 ---2D15 and CL ---600 ---2D24 aircraft

WEIGHT ARM MOMENT ¡

0.1 lb 890.3 in. 0.089 ( 1000 lb-in.)

0.05 kg 22.61 m 0.0010 (1000 kg-m)

¡ The value in the Moment column is divided by 1000.

Refer to Weight and Balance Manual CSP A ---041.

J. Electrical Load Data

Not changed.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

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Oct 18/2010

Revision D, Aug 06/2013

K. References

Restriction and/or Special Instruction (RSI) C ---32---1330---00, Revision H

Modification Summary 670T014111, Revision A ---1

Aircraft Maintenance Manual (AMM)

Airplane Flight Manual (AFM)

Nondestructive Testing Manual (NDTM)

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

Bulletin content.

For Bombardier reference only: PCA 74397

L. Other Publications Affected

Aircraft Maintenance Manual (AMM)

Aircraft illustrated Parts Catalogue (AIPC)

M. Relationship Chart

PRE-SB

PART NUMBER NAME POST-SB

PART NUMBER NAME

BA670---00001---2085

Fairing

Assembly, MLG KBA670---39005---3

Assembly

Fairing MLG

CC670---39005---951 Fairing

Assembly, MLG KBA670---39005---5 AssemblyFairing MLG

CC670---39005---3 Fairing

Assembly, MLG KBA670---39005---7 AssemblyFairing MLG

CC670---39005---5 Fairing

Assembly, MLG KBA670---39005---9 AssemblyFairing MLG
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 23 of 56

Oct 18/2010

Revision D, Aug 06/2013

2. ACCOMPLISHMENT INSTRUCTIONS

PART A --- Inspection of the MLG Inboard Doors, MLG Fairing and Adjacent Structure

Reference Information

REFERENCE DESIGNATION

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

NDT 51---20---009---210 Visual --- Inspection Procedures

SRM 52---82---02---201---001 Doors, Main Landing Gear --- Repairs

SRM 53---00---00---201---002 General Non---Metallic Composite - Repairs

A. Job Set-Up

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

(refer to AMM 12---00---00---867---801).

WARNING: MAKE SURE THAT THE LOCKPINS ARE INSTALLED IN THE NOSE AND

MAIN LANDING GEAR. THE NOSE AND MAIN LANDING GEAR CAN

ACCIDENTALLY RETRACT AND CAUSE INJURY TO PERSONS AND/OR

DAMAGE TO EQUIPMENT.

(2) Make sure that the MLG lockpins are installed.

B. Procedure

NOTE: This procedure is applicable to the left and the right sides. The procedure

that follows is written for the left side. The differences are given.

NOTE: It is necessary to do the inspection of the MLG fairing seal(s) and the MLG

inboard door(s) on the installed left and/or the right MLG door(s).

(1) Make sure to record all the results of the visual inspection in the Appendix A.

(2) Do a detailed visual inspection of the MLG fairing seal (1) or (2) of the MLG

fairing (as applicable) as follows:

Refer to Figure 1 and Figure 2.

(a) Do a detailed visual inspection of the MLG fairing seal (1) of the MLG

fairing as follows:

1 Examine the MLG fairing seal (1) for signs of damage such as

cracks or tears in the material (fabric/rubber).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 24 of 56

Oct 18/2010

Revision D, Aug 06/2013

2 With your fingers, move the MLG fairing seals (1) near the area of

the metallic stiffener to find damage such as cracks, cuts, and/or

tears in the material of the MLG fairing seal (1).

NOTE: Damage includes cracks, cuts or tears that possibly do not

go completely through the thickness of the MLG fairing seal

(1).

3 Record the results in Appendix A

Refer to Figure 1.

(b) Do a detailed visual inspection of the MLG fairing seal (2) of the MLG

fairing as follows:

1 Examine the MLG fairing seal (2) for signs of cuts or damages in

the material base.

NOTE: For the MLG fairing seal (2) exterior low friction polyester

fabric is not part of the base rubber material rejection criteria.

2 Record the results in Appendix A

Refer to Figure 3 and Figure 4.

(3) Do a detailed visual inspection of the MLG inboard doors as follows:

NOTE: For this inspection, damage does not include surface scratches and/or

paint deterioration.

(a) Look for a missing or broken roller (2) on the MLG inboard door.

(b) Look for missing stops (1) and (3).

(c) Look for loose or missing fasteners from the stops (1) and (3).

(d) Look for damage on the stops (4) and (5) and the adjacent area.

(e) Look for loose or missing fasteners from the stops (4) and (5).

(f) Look for damage along the edge of the MLG inboard door adjacent to

the MLG fairing. Refer to the shaded area in Figure 4.

(g) Record the results in Appendix A
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 25 of 56

Oct 18/2010

Revision D, Aug 06/2013

Refer to Figure 5 and Figure 6.

(4) Do a detailed visual inspection of the MLG fairing as follows:

NOTE: For this inspection, damage does not include surface scratches and/or

paint deterioration.

(a) Look for missing forward and/or aft stops from the MLG fairing.

(b) Look for loose or missing fasteners from the forward and aft stops.

(c) Look for damage along the edge of the MLG fairing adjacent to the MLG

inboard door. Refer to the shaded area in Figure 6.

(d) Record the results in Appendix A

Refer to Figure 7.

(5) Do a detailed visual inspection of the stops (1) and (2) and wedge (3) on the

forward and aft spars as follows:

NOTE: For this inspection, damage does not include surface scratches and

paint deterioration.

(a) Look for missing stops (1) and (2).

(b) Look for loose or missing fasteners from the stops (1) and (2).

(c) Look for a missing wedge (3).

(d) Look for loose or missing fasteners from the wedge (3).

(e) Record the results in Appendix A

(6) If there is no damage, go to the Job Close-Out.

Refer to Figure 1.

(7) If the MLG fairing seal (1) is damaged. Do PART C, or

PART E of this service bulletin.

(8) If the MLG fairing seal (2) is damaged. Do PART F and/or PART G or PART C

of this service bulletin.

(9) If there is no damage on the MLG fairing seal (1) or (2), go to the next step.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 26 of 56

Oct 18/2010

Revision D, Aug 06/2013

Refer to Figure 6.

(10) If there is damage along the edge of the MLG fairing, if possible, repair the

MLG fairing (refer to SRM 53-00-00-201-002). If it is not possible to repair the

MLG fairing, speak with a representative of Bombardier at the CRC at phone

number 514-855-8500 for a disposition.

(11) If there is no damage along the edge of the MLG fairing adjacent to the MLG

inboard door, go to next step.

Refer to Figure 5.

(12) If there is damage or if there is missing parts from the forward and the aft

stops of the fairing, replace the missing and/or the damaged parts of the

stops, and do the clearance check of the applicable MLG inboard door

(refer to AMM 32---12---01---220---801).

(13) If it is not possible to repair the forward and/or the aft stops on the MLG

fairing, speak with a representative of Bombardier at the CRC at phone

number 514---855---8500 for a disposition.

(14) If there is no missing or damaged parts from the forward and/or aft stops on

the MLG fairing, go to the next step.

Refer to Figure 7.

(15) If there is missing or damaged parts from the stops (1) and (2) and/or from

the wedge (3) of the forward and aft spars, replace missing/damaged parts,

and do the clearance check of the applicable MLG inboard door

(refer to AMM 32-12-01-220-801).

(16) If it is not possible to repair the stops (1) and/or (2) and/or the wedge (3),

speak with a representative of Bombardier at the CRC at phone number

514-855-8500 for a disposition.

(17) If there is no missing or damaged parts from the stops (1) and (2) and/or from

the wedge (3) on the forward and aft spars, go to the next step.

Refer to Figure 3 and Figure 4.

(18) If the MLG inboard door has damage, if possible, repair the MLG inboard

door (refer to SRM 52-82-02-201-001). If it is not possible to repair the MLG

inboard door, speak with a representative of Bombardier at the CRC at phone

number 514-855-8500 for a disposition or do PART C of this service bulletin.

(19) If there is no damage on the MLG inboard door, go to the Job Close-Out.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 27 of 56

Oct 18/2010

Revision D, Aug 06/2013

C. Job Close-Out

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

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

applicable logbook(s): ”Alert Service Bulletin A670BA ---32---030, Revision D,

Landing Gear --- Main Landing Gear (MLG) and Doors --- Inspection of the

MLG Inboard Doors and MLG Fairing, PART A, incorporated.”
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 28 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the MLG Fairing Seals

Figure 1 (Sheet 1 of 2)

ba6796a01.cgm, sc, 15 jan 2013

C

B

A

A

C

B

1

OR

2

MLG FAIRING

(REF)

1

OR

2

LEGEND

1. MLG forward seal

CC670--39244--1 (LH)

CC670--39244--2 (RH).

2. MLG forward seal

CC670--39244--5 (LH)

CC670--39244--6 (RH).

NOTE

Left side shown.

right side opposite.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 29 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the MLG Fairing Seals

Figure 1 (Sheet 2 of 2)

ba6796a02.cgm, sc, 15 jan 2013

B

D

D

LOOKING INBOARD

0.6 in.

(15.24mm)

(REF)

0.1 in.

(2.54 mm)

(REF)

METALLIC

STIFFENER

(REF)

1

MLG FAIRING

(REF)

NOTE

Left side shown.

right side opposite.

LEGEND

1. MLG forward seal

CC670--39244--1 (LH)

CC670--39244--2 (RH).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

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Oct 18/2010

Revision D, Aug 06/2013

Example of Damage to the MLG Fairing Seal

Figure 2 (Sheet 1 of 2)

ba6797a01.cgm

A

A

B

B

MLG FAIRING

(REF)

1

LEGEND

1. Forward rubber seal

CC670--39244--1

(CC670--39244--2).

NOTE

Left side shown.

right side opposite.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 31 of 56

Oct 18/2010

Revision D, Aug 06/2013

Example of Damage to the MLG fairing seal

Figure 2 (Sheet 2 of 2)

ba6797a02.cgm

A

C

D

C

D

MLG FAIRING

(REF)

1

LEGEND

1. Forward rubber seal

CC670--39244--1

(CC670--39244--2).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 32 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the Stops on the MLG Inboard Door

Figure 3 (Sheet 1 of 2)

ba6804a01.cgm, rb, 11 oct 2010

B

A

B

1

A

2

LEGEND

1. Stop.

2. Roller.

NOTE

Left side shown,

right side opposite.

MLG INBOARD

DOOR

(REF)
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 33 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the Stops on the MLG Inboard Door

Figure 3 (Sheet 2 of 2)

ba6804a02.cgm, rb, 11 oct 2010

C

5

NOTE

Left side shown,

right side opposite.

3

D

C

E

D

A

MLG INBOARD

DOOR

(REF)

E

4

LEGEND

3. Stop.

4. Stop.

5. Stop.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 34 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the MLG Inboard Door

Figure 4 (Sheet 1 of 2)

ba6800a01.cgm, fp/rb, 11 oct 2010

A

A

MLG INBOARD

DOOR (REF)

1. Inspection area

is shaded.

2. Left side shown,

right side opposite.

NOTES
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 35 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the MLG Inboard Door

Figure 4 (Sheet 2 of 2)

ba6800a02.cgm, fp/rb, 11 oct 2010

A

B

B

1. Inspection area

is shaded.

2. Left side shown,

right side opposite.

NOTES

MLG INBOARD

DOOR (REF)
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 36 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the Stops on the MLG Fairing

Figure 5 (Sheet 1 of 1)

ba6802a01.cgm

B

MLG FAIRING

(REF)

AFT STOP

(REF)

A

C

A

MLG FAIRING

(REF)

MLG FAIRING

(REF)

FWD STOP

(REF)

B

NOTE

Left side shown,

right side opposite.

FASTENER

(REF)

FASTENER

(REF)

C
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 37 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the MLG Fairing

Figure 6 (Sheet 1 of 1)

ba6801a01.cgm, fp/rb, 11 oct 2010

A

A

MLG FAIRING

(REF)

1. Inspection area

is shaded.

2. Left side shown,

right side opposite.

NOTES
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 38 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the Stops and Wedge

Figure 7 (Sheet 1 of 2)

ba6803a01.cgm

B

NOTE

Left side shown,

right side opposite.

LEGEND

1. Stop.

FWD LOWER

SKIN

(REF)

A

B

A

1

FASTENER

(REF)
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 39 of 56

Oct 18/2010

Revision D, Aug 06/2013

Inspection of the Stops and Wedge

Figure 7 (Sheet 2 of 2)

ba6803a02.cgm

A

C

NOTE

Left side shown,

right side opposite.

3

2

FASTENER

(REF)

FASTENER

(REF)

LEGEND

2. Stop.

C 3. Wedge.

AFT LOWER

SKIN

(REF)
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 40 of 56

Oct 18/2010

Revision D, Aug 06/2013

MLG Fairing Seals and Seal Retainer --- Removal/Installation

Figure 9 (Sheet 1 of 1)

ba7704a01.cgm, sc,mgr,cr. 05 apr. 2013

A

A B

NOTE

Left side shown.

right side opposite.

4 OR 6

2 3 5

1

6

1

2 3 5

LEGEND

1. Bolt

NAS7502U4.

2. Nut

MS21043--08.

3. Washer

NAS1149EN832P.

4. Seal MLG fairing

CC670--39244--1 (LH)

CC670--39244--2 (RH).

5. Seal retainer

CC670--39245--1 (LH)

CC670--39245--2 (RH).

6. Seal MLG fairing

CC670--39244--5 (LH)

CC670--39244--6 (RH).

7. MLG fairing

BA670--00001--2085 (PRE--MOD)

KBA670--39005--3 (POST--MOD)

or CC670--39005--951 (PRE--MOD)

KBA670--39005--5 (POST--MOD)

or CC670--39005--3 (PRE--MOD)

KBA670--39005--7 (POST--MOD)

or CC670--39005--5 (PRE--MOD)

KBA670--39005--9 (POST--MOD).

B POST--MOD

B PRE--MOD
ALERT SERVICE BULLETIN A670BA ---32 ---030

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Page 41 of 56

Oct 18/2010

Revision D, Aug 06/2013

PART C --- Removal of MLG Inboard Door (s)

Reference Information

REFERENCE DESIGNATION

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

AMM 32---12---01---000---802 Removal of the MLG Inboard Doors

D. Job Set-Up

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

(refer to AMM 12---00---00---867---801).

WARNING: MAKE SURE THAT THE LOCKPINS ARE INSTALLED IN THE NOSE AND

MAIN LANDING GEAR. THE NOSE AND MAIN LANDING GEAR CAN

ACCIDENTALLY RETRACT AND CAUSE INJURY TO PERSONS AND/OR

DAMAGE TO EQUIPMENT.

(2) Make sure that the MLG and NLG lockpins are installed.

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

CB PANEL CB NO. NAME

CBP ---1 A12 HEATERS TAT

CBP ---1 A13 HEATERS AOA R

CBP ---1 A14 HEATERS PITOT R

CBP ---1 G1 PSEU CH A

CBP ---1 G13 HEATERS ADS CONT 2

CBP ---1 G14 HEATERS STATIC R

CBP ---1 LOWER T7 HEATERS PITOT L

CBP ---1 LOWER T8 HEATERS AOA L

CBP ---1 LOWER T9 HEATERS PITOT STBY

CBP ---2 P1 PSEU CH A

CBP ---2 P2 PSEU CH B

CBP ---2 LOWER S1 HEATERS STATIC L
ALERT SERVICE BULLETIN A670BA ---32 ---030

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Oct 18/2010

Revision D, Aug 06/2013

CB PANEL NAME CB NO.

CBP ---2 LOWER S2 HEATERS ADS CONT 1

CBP ---2 LOWER S3 HEATERS ADS CONT STBY

E. Procedure

(1) Remove the applicable MLG inboard door(s) (refer to AMM

32---12---01---000---802).

F. Job Close-Out

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

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

CB PANEL CB NO. NAME

CBP ---1 A12 HEATERS TAT

CBP ---1 A13 HEATERS AOA R

CBP ---1 A14 HEATERS PITOT R

CBP ---1 G1 PSEU CH A

CBP ---1 G13 HEATERS ADS CONT 2

CBP ---1 G14 HEATERS STATIC R

CBP ---1 LOWER T7 HEATERS PITOT L

CBP ---1 LOWER T8 HEATERS AOA L

CBP ---1 LOWER T9 HEATERS PITOT STBY

CBP ---2 P1 PSEU CH A

CBP ---2 P2 PSEU CH B

CBP ---2 LOWER S1 HEATERS STATIC L

CBP ---2 LOWER S2 HEATERS ADS CONT 1

CBP ---2 LOWER S3 HEATERS ADS CONT STBY

(3) When PART C of this service bulletin is completed, make this entry in the

applicable logbook(s): ”Alert Service Bulletin A670BA ---32---030, Revision D,

Landing Gear --- Main Landing Gear (MLG) and Doors --- Inspection of the

MLG Inboard Doors and MLG Fairing, PART C, incorporated.”
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 43 of 56

Oct 18/2010

Revision D, Aug 06/2013

PART D --- Installation of MLG Inboard Door(s)

Reference Information

REFERENCE DESIGNATION

AMM 07---11---01---582---801 Jacking of the Aircraft

AMM 07---11---01---586---801 Lowering of the Aircraft

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

AMM 32---12---01---220---801 Clearance Check of the MLG Doors

AMM 32---12---01---400---802 Installation of the MLG Inboard Doors

AMM 53---83---85---000---803 Removal of the Main Landing Gear (MLG) Fairing (194AB) Forward Seal

AMM 53---83---85---400---803 Installation of the Main Landing Gear (MLG)

Fairing (194AB) Forward Seal

G. Job Set-Up

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

(refer to AMM 12---00---00---867---801).

WARNING: MAKE SURE THAT THE LOCKPINS ARE INSTALLED IN THE NOSE AND

MAIN LANDING GEAR. THE NOSE AND MAIN LANDING GEAR CAN

ACCIDENTALLY RETRACT AND CAUSE INJURY TO PERSONS AND/OR

DAMAGE TO EQUIPMENT.

(2) Make sure that the MLG and NLG lockpins are installed.

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

CB PANEL CB NO. NAME

CBP ---1 A12 HEATERS TAT

CBP ---1 A13 HEATERS AOA R

CBP ---1 A14 HEATERS PITOT R

CBP ---1 G1 PSEU CH A

CBP ---1 G13 HEATERS ADS CONT 2
ALERT SERVICE BULLETIN A670BA ---32 ---030

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Page 44 of 56

Oct 18/2010

Revision D, Aug 06/2013

CB PANEL NAME CB NO.

CBP ---1 G14 HEATERS STATIC R

CBP ---1 LOWER T7 HEATERS PITOT L

CBP ---1 LOWER T8 HEATERS AOA L

CBP ---1 LOWER T9 HEATERS PITOT STBY

CBP ---2 P1 PSEU CH A

CBP ---2 P2 PSEU CH B

CBP ---2 LOWER S1 HEATERS STATIC L

CBP ---2 LOWER S2 HEATERS ADS CONT 1

CBP ---2 LOWER S3 HEATERS ADS CONT STBY

(4) Put the aircraft on jacks (refer to AMM 07---11---01---582---801).

H. Procedure

(1) Install the applicable MLG inboard door(s)

(refer to AMM 32---12---01---400---802).

(2) Do PART A of this service bulletin.

(3) Do the clearance check of the applicable MLG inboard door(s)

(AMM 32---12---01---220---801).

(4) If an adjustment of a MLG inboard door is necessary and you cannot get a

correct adjustment of the MLG door, speak with a representative of

Bombardier at the CRC at phone number 514---855---8500 for a disposition.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 45 of 56

Oct 18/2010

Revision D, Aug 06/2013

I. Job Close-Out

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

(2) Remove the aircraft from jacks (refer to AMM 07---11---01---586---801).

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

CB PANEL CB NO. NAME

CBP ---1 A12 HEATERS TAT

CBP ---1 A13 HEATERS AOA R

CBP ---1 A14 HEATERS PITOT R

CBP ---1 G1 PSEU CH A

CBP ---1 G13 HEATERS ADS CONT 2

CBP ---1 G14 HEATERS STATIC R

CBP ---1 LOWER T7 HEATERS PITOT L

CBP ---1 LOWER T8 HEATERS AOA L

CBP ---1 LOWER T9 HEATERS PITOT STBY

CBP ---2 P1 PSEU CH A

CBP ---2 P2 PSEU CH B

CBP ---2 LOWER S1 HEATERS STATIC L

CBP ---2 LOWER S2 HEATERS ADS CONT 1

CBP ---2 LOWER S3 HEATERS ADS CONT STBY

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

applicable logbook(s): ”Alert Service Bulletin A670BA ---32---030, Revision D,

Landing Gear --- Main Landing Gear (MLG) and Doors --- Inspection of the

MLG Inboard Doors and MLG Fairing, PART D, incorporated.”
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 46 of 56

Oct 18/2010

Revision D, Aug 06/2013

PART E --- Replacement of the MLG fairing seals P/N CC670 ---39244 ---1 and

CC670 ---39244 ---2 with P/N CC670 ---39244 ---5 and CC670 ---39244 ---6 on the MLG Fairing

Reference Information

REFERENCE DESIGNATION

AMM 07---11---01---582---801 Jacking of the Aircraft

AMM 07---11---01---586---801 Lowering of the Aircraft

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

AMM 20---21---00---910---801 Torquing of Threaded Fasteners

AMM 32---12---01---220---801 Clearance Check of the MLG Doors

AMM 53---83---85---000---803 Removal of the Main Landing Gear (MLG) Fairing (194AB) Forward Seal

SRM 51---21---11---001---001 Corrosion Prevention Procedures

SRM 51---21---16---001---001 Finish Codes

SRM 51---23---00---001---001 Pressure, Environmental, Fuel Tank and Firewall

Sealing

SRM 51---25---06---001---001 Fluid-Resistant (FR) Epoxy Primer

SRM 51---25---16---001---001 Fluid-Resistant (FR) Polyurethane Topcoat

SRM 51---41---02---001---001 Bolts, Screws and Related Items

J. Job Set-Up

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

(refer to AMM 12---00---00---867---801).

WARNING: MAKE SURE THAT THE LOCKPINS ARE INSTALLED IN THE NOSE AND

MAIN LANDING GEAR. THE NOSE AND MAIN LANDING GEAR CAN

ACCIDENTALLY RETRACT AND CAUSE INJURY TO PERSONS AND/OR

DAMAGE TO EQUIPMENT.

(2) Make sure that the MLG and NLG lockpins are installed.
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 47 of 56

Oct 18/2010

Revision D, Aug 06/2013

For aircraft that must have the left and/or the right damaged fairing seal(s)

replaced and that the left and/or the right MLG inboard door(s) is (are) installed on

that same side

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

CB PANEL CB NO. NAME

CBP ---1 A12 HEATERS TAT

CBP ---1 A13 HEATERS AOA R

CBP ---1 A14 HEATERS PITOT R

CBP ---1 C13 ADG HEATER

CBP ---1 G2 NOSE STEER

CBP ---1 G14 HEATERS STATIC R

CBP ---1 LOWER T7 HEATERS PITOT L

CBP ---1 LOWER T8 HEATERS AOA L

CBP ---1 LOWER T9 HEATERS PITOT STBY

CBP ---1 LOWER U7 ENG IGN A

CBP ---2 G2 NOSE STEER

CBP ---2 N6 ADG DEPLOY AUTO

CBP ---2 LOWER S1 HEATERS STATIC L

CBP ---5 B10 ENG IGN B

(4) Put the aircraft on jacks (refer to AMM 07---11---01---582---801).

K. Procedure

For all aircraft

Refer to Figure 9.

NOTE: This procedure is applicable to the left and the right sides. The procedure

that follows is written for the left side. The differences are given.

(1) Remove the MLG fairing seal (4) from the MLG fairing (refer to AMM

53---83---85---000---803).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 48 of 56

Oct 18/2010

Revision D, Aug 06/2013

(2) Backdrill the MLG fairing seal (6) on the MLG fairing as follows:

(a) Temporary install and secure the MLG fairing seal (6) to the

retainer seal (5).

(b) Backdrill the holes to a diameter of 0.165 to 0.169 in. (4.19 to 4.29 mm)

from the seal retainer (5) through the MLG fairing seal (6)

(c) Remove the MLG fairing seal (6) from the seal retainer (5).

(d) Remove the burrs from the MLG fairing seal (6).

(3) Install the MLG fairing seal (6) on the MLG fairing as follows:

(a) Install the MLG fairing seal (6) with the retainer seal (5) on the MLG

fairing.

(b) With sealant, wet-install the bolt (8) through the MLG fairing and the

MLG faring seal (Refer to AMM 51---23---00---390---810).

(c) With sealant, wet-install the bolts (1) through the MLG fairing with the

washers (3) and the nuts (2) (Refer to AMM 51---23---00---390---810).

(d) Torque the nuts (2) and the screw (8) (refer to AMM

20---21---00---910---801).

(e) Clean the area of the forward MLG fairing with clean, dry cloths with no

lint, moist with aliphatic naphta or equivalent.

(f) Dry the area with clean, dry cloths with no lint.

(g) If necessary, apply primer CMS565---01 on the bolts (1), the nuts (2) and

the washers (3) (refer to SRM 51---25---06---001---001).

(h) If necessary, apply two layers of polyurethane topcoat CMS 565---02,

color grey No.16473 on the nuts (2) and the washers (3)

(refer to SRM 51---25---16---001---001).

(i) If necessary, apply polyurethane topcoat CMS 565---02 on the bolts (1)

to agree with the external paint scheme of the aircraft

(refer to SRM 51---25---16---001---001).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 49 of 56

Oct 18/2010

Revision D, Aug 06/2013

(4) With a indelible ink pen or equivalent, identify the MLG fairing (7) with the

applicable part number listed in the table below

(refer to AMM 20---60---13---930---801).

PRE-SB PART NUMBER POST-SB PART NUMBER

BA670---00001---2085 KBA670---39005---3

CC670---39005---951 KBA670---39005---5

CC670---39005---3 KBA670---39005---7

CC670---39005---5 KBA670---39005---9

For aircraft that had the damaged fairing seal(s) replaced and that the MLG inboard

door(s) is(are) installed on that same side

(5) Do the clearance check on the applicable MLG door(s)

(refer to AMM 32---12---01---220---801).

(6) If an adjustment of the MLG inboard door(s) is necessary and you cannot get

a correct adjustment of the MLG door(s), speak with a representative of

Bombardier at the CRC at phone number 514---855---8500 for a disposition.

L. Job Close-Out

For all aircraft

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

For aircraft that had the damaged seal(s) replaced and that the MLG inboard

door(s) is(are) installed on that same side

(2) Remove the aircraft from jacks (refer to AMM 07---11---01---586---801).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 50 of 56

Oct 18/2010

Revision D, Aug 06/2013

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

CB PANEL CB NO. NAME

CBP ---1 A12 HEATERS TAT

CBP ---1 A13 HEATERS AOA R

CBP ---1 A14 HEATERS PITOT R

CBP ---1 C13 ADG HEATER

CBP ---1 G2 NOSE STEER

CBP ---1 G14 HEATERS STATIC R

CBP ---1 LOWER T7 HEATERS PITOT L

CBP ---1 LOWER T8 HEATERS AOA L

CBP ---1 LOWER T9 HEATERS PITOT STBY

CBP ---1 LOWER U7 ENG IGN A

CBP ---2 G2 NOSE STEER

CBP ---2 N6 ADG DEPLOY AUTO

CBP ---2 LOWER S1 HEATERS STATIC L

CBP ---5 B10 ENG IGN B

For all aircraft

(4) When PART E of this service bulletin is completed, add the weight and

balance data shown in paragraph 1.I. of this service bulletin to the Weight and

Balance Manual. Under ‘Description of Change’ enter “Alert Service Bulletin

A670BA ---32---030, Revision D, PART E, incorporated.”

(5) When PART E of this service bulletin is completed, make this entry in the

applicable logbook(s): ”Alert Service Bulletin A670BA ---32---030, Revision D.

Landing Gear --- Main Landing Gear (MLG) and Doors --- Inspection of the

MLG Inboard Doors and MLG Fairing, PART E, incorporated.”
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 51 of 56

Oct 18/2010

Revision D, Aug 06/2013

PART F --- Replacement of the left MLG fairing seal P/N CC670 ---39244 ---5 on

the MLG Fairing

Reference Information

REFERENCE DESIGNATION

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

AMM 20---21---00---910---801 Torquing of Threaded Fasteners

SRM 51---21---16---001---001 Finish Codes

SRM 51---23---00---001---001 Pressure, Environmental, Fuel Tank and Firewall

Sealing

SRM 51---25---06---001---001 Fluid-Resistant (FR) Epoxy Primer

SRM 51---25---16---001---001 Fluid-Resistant (FR) Polyurethane Topcoat

SRM 51---41---02---001---001 Bolts, Screws and Related Items

M. Job Set-Up

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

(refer to AMM 12---00---00---867---801).

WARNING: MAKE SURE THAT THE LOCKPINS ARE INSTALLED IN THE NOSE AND

MAIN LANDING GEAR. THE NOSE AND MAIN LANDING GEAR CAN

ACCIDENTALLY RETRACT AND CAUSE INJURY TO PERSONS AND/OR

DAMAGE TO EQUIPMENT.

(2) Make sure that the MLG and NLG lockpins are installed.

N. Procedure

Refer to Figure 9.

(1) Remove the MLG fairing seal (6) from the MLG fairing

(refer to AMM 53---83---85---000---803).

(2) Backdrill the MLG fairing seal (6) on the MLG fairing as follows:

(a) Temporary install and secure the MLG fairing seal (6) to the

retainer seal (5).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 52 of 56

Oct 18/2010

Revision D, Aug 06/2013

(b) Backdrill the holes to a diameter of 0.165 to 0.169 in. (4.19 to 4.29 mm)

from the seal retainer (5) through the MLG fairing seal (6)

(c) Remove the MLG fairing seal (6) from the seal retainer (5).

(d) Remove the burrs from the MLG fairing seal (6).

(3) Install the MLG fairing seal (6) on the MLG fairing as follows:

(a) Install the MLG fairing seal (6) with the retainer seal (5) on the MLG

fairing.

(b) With sealant, wet-install the bolt (8) through the MLG fairing and the

MLG faring seal (Refer to AMM 51---23---00---390---810).

(c) With sealant, wet-install the bolts (1) through the MLG fairing with the

washers (3) and the nuts (2) (Refer to AMM 51---23---00---390---810).

(d) Torque the nuts (2) and the screw (8) (refer to AMM

20---21---00---910---801).

(e) Clean the area of the forward MLG fairing with clean, dry cloths with no

lint, moist with aliphatic naphta or equivalent.

(f) Dry the area with clean, dry cloths with no lint.

(g) If necessary, apply primer CMS565---01 on the bolts (1), the nuts (2) and

the washers (3) (refer to SRM 51---25---06---001---001).

(h) If necessary, apply two layers of polyurethane topcoat CMS 565---02,

color grey No.16473 on the nuts (2) and the washers (3)

(refer to SRM 51---25---16---001---001).

(i) If necessary, apply polyurethane topcoat CMS 565---02 on the bolts (1)

to agree with the external paint scheme of the aircraft

(refer to SRM 51---25---16---001---001).

O. Job Close-Out

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

(2) When PART F of this service bulletin is completed, make this entry in the

applicable logbook(s): ”Alert Service Bulletin A670BA ---32---030, Revision D,

Landing Gear --- Main Landing Gear (MLG) and Doors --- Inspection of the

MLG Inboard Doors and MLG Fairing, PART F, incorporated.”
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 53 of 56

Oct 18/2010

Revision D, Aug 06/2013

PART G --- Replacement of the right MLG fairing seal P/N CC670 ---39244 ---6 on

the MLG Fairing

Reference Information

REFERENCE DESIGNATION

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

AMM 20---21---00---910---801 Torquing of Threaded Fasteners

SRM 51---21---16---001---001 Finish Codes

SRM 51---23---00---001---001 Pressure, Environmental, Fuel Tank and Firewall

Sealing

SRM 51---25---06---001---001 Fluid-Resistant (FR) Epoxy Primer

SRM 51---25---16---001---001 Fluid-Resistant (FR) Polyurethane Topcoat

SRM 51---41---02---001---001 Bolts, Screws and Related Items

P. Job Set-Up

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

(refer to AMM 12---00---00---867---801).

WARNING: MAKE SURE THAT THE LOCKPINS ARE INSTALLED IN THE NOSE AND

MAIN LANDING GEAR. THE NOSE AND MAIN LANDING GEAR CAN

ACCIDENTALLY RETRACT AND CAUSE INJURY TO PERSONS AND/OR

DAMAGE TO EQUIPMENT.

(2) Make sure that the MLG and NLG lockpins are installed.

Q. Procedure

Refer to Figure 9.

(1) Remove the MLG fairing seal (6) from the MLG fairing

(refer to AMM 53---83---85---000---803).

(2) Backdrill the MLG fairing seal (6) on the MLG fairing as follows:

(a) Temporary install and secure the MLG fairing seal (6) to the

retainer seal (5).
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 54 of 56

Oct 18/2010

Revision D, Aug 06/2013

(b) Backdrill the holes to a diameter of 0.165 to 0.169 in. (4.19 to 4.29 mm)

from the seal retainer (5) through the MLG fairing seal (6)

(c) Remove the MLG fairing seal (6) from the seal retainer (5).

(d) Remove the burrs from the MLG fairing seal (6).

(3) Install the MLG fairing seal (6) on the MLG fairing as follows:

(a) Install the MLG fairing seal (6) with the retainer seal (5) on the MLG

fairing.

(b) With sealant, wet-install the bolt (8) through the MLG fairing and the

MLG faring seal (Refer to AMM 51---23---00---390---810).

(c) With sealant, wet-install the bolts (1) through the MLG fairing with the

washers (3) and the nuts (2) (Refer to AMM 51---23---00---390---810).

(d) Torque the nuts (2) and the bolt (8) (refer to AMM

20---21---00---910---801).

(e) Clean the area of the forward MLG fairing with clean, dry cloths with no

lint, moist with aliphatic naphta or equivalent.

(f) Dry the area with clean, dry cloths with no lint.

(g) If necessary, apply primer CMS565---01 on the bolts (1), the nuts (2) and

the washers (3) (refer to SRM 51---25---06---001---001).

(h) If necessary, apply two layers of polyurethane topcoat CMS 565---02,

color grey No.16473 on the nuts (2) and the washers (3)

(refer to SRM 51---25---16---001---001).

(i) If necessary, apply polyurethane topcoat CMS 565---02 on the bolts (1)

to agree with the external paint scheme of the aircraft

(refer to SRM 51---25---16---001---001).

R. Job Close-Out

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

(2) When PART G of this service bulletin is completed, make this entry in the

applicable logbook(s): ”Alert Service Bulletin A670BA ---32---030, Revision D,

Landing Gear --- Main Landing Gear (MLG) and Doors --- Inspection of the

MLG Inboard Doors and MLG Fairing, PART G, incorporated.”
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 55 of 56

Oct 18/2010

Revision D, Aug 06/2013

3. MATERIAL INFORMATION

A. Kit Information

Kit Contents:

KIT 670BA32040K5

PART NUMBER QTY NAME ALTERNATE

PARTS NOTES

CC670---39244---5SB 1 Seal, MLG fairing

(L/H)

CC670---39244---5---01 ---

KIT 670BA32040K6

PART NUMBER QTY NAME ALTERNATE

PARTS NOTES

CC670---39244---6SB 1 Seal, MLG fairing

(R/H)

CC670---39244---6---01 ---

B. Consumable Information

For a list of consumables, refer to the different tasks 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 given as

references in this service bulletin.

D. Disposition of Parts

The table that follows shows the disposition of parts on the aircraft, and the

relationship between these parts to the new parts to be installed through the

incorporation of PART E of this service bulletin .

PRE-SB PART NUMBER NAME QTY DC POST-SB PART

NUMBER

CC670---39244---1 Seal, MLG Door

(L/H) 1 DIS CC670---39244---5

CC670---39244---2 Seal, MLG Door

(R/H) 1 DIS CC670---39244---6
ALERT SERVICE BULLETIN A670BA ---32 ---030

SB A670BA ---32---030

Page 56 of 56

Oct 18/2010

Revision D, Aug 06/2013

PRE-SB PART NUMBER POST-SB PART

NUMBER

NAME QTY DC

BA670---00001---2085 Fairing Assembly,

MLG 1 RWK KBA670---39005---3

CC670---39005---951 Fairing Assembly,

MLG 1 RWK KBA670---39005---5

CC670---39005---3 Fairing Assembly,

MLG 1 RWK KBA670---39005---7

CC670---39005---5 Fairing Assembly,

MLG 1 RWK KBA670---39005---9

Disposition code (DC):

DIS: Discard Part.

RWK: Rework part as shown in this service bulletin.

1
Page A1 of A2

Oct 18/2010

Revision B, Mar 13/2013

1

App

A APPENDIX A

APPENDIX A

Alert Service Bulletin

A670BA -- 32 -- 030

Inspection of the MLG Inboard

Doors and MLG Fairings

DATA SHEET

The data sheet contained in this appendix are given as references in the

ACCOMPLISHMENT INSTRUCTIONS of Service Bulletin A670---32---030
APPENDIX A

Page A2 of A2

Oct 18/2010

Revision B, Mar 13/2013

1

App

A APPENDIX A

OPERATOR NAME: ___________________________________________________

AIRCRAFT SERIAL NUMBER: __________________________________________

DATE (OF INSPECTION): _____________________________________________

AIRCRAFT FLIGHT HOURS: ___________________________________________

Left MLG Door Right MLG Door

Inspection Results (Findings)

Forward Rubber

Seal Damage YES____  YES____ NO____

Door Part Number

Serial Number

Please include

Pictures

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

___________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

____________________________

___________________________

____________________________

____________________________

Pictures and data will be used by Bombardier for analysis

Send Data Sheet to:

BOMBARDIER REGIONAL AIRCRAFT

Customer Response Center (CRC)

FAX: 514---855---8501

Attention to : ISE Systems

or

Email‘: thd.crj@aero.bombardier.com

1
THANK YOU FOR ANSWERING THIS EVALUATION FORM 

UPON COMPLETION OF THIS EVALUATION FORM/COMPLIANCE SHEET, FAX TO 

450-476-7300 

SERVICE BULLETIN EVALUATION FORM/COMPLIANCE SHEET 

(YOUR IDEAS WILL HELP US PROVIDE BETTER BULLETINS) 

SERVICE BULLETIN : 670BA-32-030 ISSUE: D 

STRONGLY DISAGREE NEUTRAL AGREE STRONGLY 

DISAGREE AGREE 

 Instructions to do the Service Bulletin 

were accurate. 

Comments:

    

 Illustration(s), figure(s), picture(s) and/or 

kit drawing(s) were helpful to carry out 

instructions. 

Comments:

    

 If a parts kit was required, did the kit 

contents received agree with the 

contents listed in the bulletin? 

Comments: 

    

 Aircraft hands-on work was 

accomplished in estimated time. 

 Comments:

    

 Overall, I was satisfied with this Service 

Bulletin. 

 Comments: 

    

PLEASE SUPPLY US WITH THE FOLLOWING DATA AND FAX TO (450) 476-7300: 

OPERATOR: NAME (Please print)

SERVICE CENTER: TELEPHONE:

AIRCRAFT SERIAL NO.: FACSIMILE:

DATE OF SB 

INCORPOARTION