the evolution of mobility

SB 601R−27−164

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Mar 30/2015

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: 27−35 NUMBER: 601R−27−164

SUBJECT: Flight Controls − Stall Protection System − Replacement of the

Incorrectly Calibrated Angle-Of-Attack (AOA) Transducers

1. PLANNING INFORMATION

A. Effectivity

(1) Aircraft Affected:

Service Bulletin: CL−600−2B19 aircraft with the components that follow

installed (Refer to Table 1 and Table 2):

TABLE 1

PART NUMBER: 45−150−340 (601R59154−1)

PART SERIAL 

NUMBERS: 340, 1825, 1844, 1913, and 2349.

CAN BE INSTALLED

ON AIRCRAFT 

SERIAL NUMBERS:

7003 thru 7067, 7069 thru 7990, and 8000 thru 8999

SPARES:

Examine all spare parts. If a part with a serial number

listed above is found, it is necessary to send the part

to Thales (Refer to the Disposition table in paragraph

3.D. for more details).

ALL CL−600−2B19

AIRCRAFT

If parts with the serial numbers listed above are

installed, but were not identified at the time of aircraft

delivery, on the same or on a different aircraft model,

it is necessary to send the part to Thales (Refer to the

Disposition table in paragraph 3.D. for more details).
SERVICE BULLETIN 601R−27−164

SB 601R−27−164

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Mar 30/2015

TABLE 2

PART NUMBER: C16258AA (601R59154−3) and 

C16258AB (601R59154−5)

PART SERIAL 

NUMBERS:

217, 221, 222, 257, 476, 481, 505, 513, 536, 634A,

730, 929, 1514, 1524, 1564, 1597, 1613, 1674, 1721,

1826, 1865C, 2054C, 2097C, 2098C, 2143C, 2152B,

2164C, 2166C, 2212C, 2505C, 2539, 2602, 2612,

3018, 3019, 3021, 3022, 3023, 3024, 3025, 3026,

3027, 3028, 3029, 3046, 3047, 3054, 3055, 3056,

3057, 3058, 3059, 3068, 3069, 3070, 3071, 3072,

3074, 3075, 3076, 3077, 3078, 3080, 3081, 3082,

3084, 3085, 3086, 3087, 3088, 3089, 3091, 3092,

3093, 3094, 3095, 3096, 3097, 3118, 3122, 3150,

3151, 3166, 3194, and 3197.

NOTE: Serial number that have a suffix letter D have

the Thales Avionics Service Bulletin

C16258A−27−006 incorporated. (Example: S/N 217

or 217A becomes S/N217D). Thus they do not have

to be replaced.

CAN BE INSTALLED

ON AIRCRAFT 

SERIAL NUMBERS:

7003 thru 7067, 7069 thru 7990, and 8000 thru 8999

SPARES:

Examine all spare parts. If a part with a serial number

listed above is found, it is necessary to incorporate

Thales Service Bulletin C16258−27−006.

ALL CL−600−2B19

AIRCRAFT

If parts with the serial numbers listed above are

installed, but were not identified at the time of aircraft

delivery, on the same or on a different aircraft model,

it is necessary to incorporate Thales Service Bulletin

C16258−27−006.

Production: There is no production effectivity.

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 601R−27−164

SB 601R−27−164

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B. Reason

(1) Condition

Some Angle-of-Attack (AOA) transducers P/N 45−150−340, P/N C16258AA

and P/N C16258AB were incorrectly calibrated. This can cause the stall

protection system to not operate correctly and result in a late activation of the

stick pusher.

(2) Evidence

The manufacturer of the Angle-Of-Attack (AOA) transducer reported that the

callibration fixture of the AOA transducers, at the manufacturing plant and the

repair facilities, were misaligned and caused an incorrect calibration of some

AOA transducers.

(3) Objective/Benefit

This service bulletin gives the list of affected incorrectly calibrated AOA

transducers and the instructions to replace them. Replacement of the affected

AOA transducers will prevent late activation of the stick pusher.

C. Description

The AOA transducer(s) with a serial number shown in Table 1 of the effectivity

section of this service bulletin is/are removed. The AOA transducer(s) is/are

installed.

D. Compliance

Recommended service bulletin.

Bombardier recommends that this service bulletin be done at no more than 5000

flight hours or no later than 24 months from the release date of this service bulletin,

whichever comes first, unless otherwise directed by the airworthiness authority of

the operator.

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.
SERVICE BULLETIN 601R−27−164

SB 601R−27−164

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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 an estimate. Call the Fleet Services Team through the

CRC at 1−844−272−2720 (1−844−CRC−CRC0) or 1−514−855−8500 or

e-mail at thd.crj@aero.bombardier.com.

It will take an estimated 4.50 man-hours to complete 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 0.25

(2) Procedure 3.00

(3) Test 1.00

(4) Job Close-Out 0.25

NOTE: These estimates do not include the man-hours necessary to do Thales

Service Bulletin C16258A−27−006.
SERVICE BULLETIN 601R−27−164

SB 601R−27−164

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G. Material − Price and Availability

There are no kits for this service bulletin.

For aircraft that have an AOA transducer P/N 45−150−340 (601R59154−1) with a

serial number that is found in TABLE 1 shown in the effectivity section

(1) AOA transducer P/N 45−150−340 is replaced with the P/N in the table that

follows or a later configuration.

PART NUMBER NAME QTY

C16258AB AOA Transducer 1

NOTE: The Disposition of Parts in paragraph 3.D. shows the rotable

information.

(2) Speak with a Thales representative at the address below to schedule part

delivery:

THALES Avionics

105, avenue du Général Eisenhower

BP 63647

31036 TOULOUSE CEDEX 1

FRANCE

Attn: Retrofit Manager

Tel. : 33 5 61 19 76 95

Fax. : 33 5 61 19 68 20

e-mail : retrofit@fr.thalesgroup.com

For aircraft that have an AOA transducer P/N C16258AA (601R59154−3) and/or

C16258AB (601R59154−5) with a serial number that is found in TABLE 2 shown in

the effectivity section

(3) Refer to Thales Service Bulletin C16258A−27−006 for terms and conditions.

For all aircraft

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

For Business/Corporate Operators

All Business/Corporate operators (i.e. operators who do not have a commercial

airline operation) refer to SB 800-00-004 for commercial policy coverage and

logistics/planning arrangements (refer to www.cic.bombardier.com/technical

library/service bulletins/challenger/850/SB 800-00-004).

To place an order for parts or kits, please call Bombardier Parts Logistics at

514-855-2999 or 1-866-538-1247.
SERVICE BULLETIN 601R−27−164

SB 601R−27−164

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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−A295, Revision B

Thales Service Bulletin C16258A−27−006, dated Oct 26/2012

Aircraft Maintenance Manual (AMM)

For Bombardier reference only: PCA 6976

L. Other Publications Affected

None.

M. Relationship Chart

Not applicable.
SERVICE BULLETIN 601R−27−164

SB 601R−27−164

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Mar 30/2015

2. ACCOMPLISHMENT INSTRUCTIONS

Reference Information

REFERENCE DESIGNATION

AMM 27−35−05−000−801 Removal of the Angle-of-Attack Transducer

AMM 27−35−05−400−801 Installation of the Angle-of-Attack Transducer

A. Job Set-Up

(1) Refer to the procedure.

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.

Refer to Figure 1 .

(1) Remove the affected AOA transducer (1) (refer to AMM

27−35−05−000−801).

(2) Install an AOA transducer (1) with a serial number that is not found in Table 1

and Table 2 shown in the effectivity section of this service bulletin or with a

serial number that has the letter D" at the end (refer to AMM

27−35−05−400−801).

NOTE: AOA transducers P/N 45−150−340, with a serial number shown in

Table 1 of the effectivity section of this service bulletin, are sent to Thales.

NOTE: When the Thales Service Bulletin C16258A−27−006 is done on P/Ns

C16258AA or C16258AB, the letter D" is added to the serial number of

the AOA transducer.

C. Job Close-Out

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

(2) When this service bulletin is completed, make this entry in the applicable

logbooks: Service Bulletin 601R−27−164, Flight Controls − Stall Protection

System − Replacement of the Incorrectly Calibrated Angle-Of-Attack (AOA)

Transducers, incorporated."
SERVICE BULLETIN 601R−27−164

SB 601R−27−164

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Mar 30/2015

AOA Transducer − Locator

Figure 1 (Sheet 1 of 1)

LEGEND

1. AOA transducer.

rsb601r27164_001, kp, Feb. 16, 2015

A

1

LEFT SIDE SHOWN

RIGHT SIDE OPPOSITE

A
SERVICE BULLETIN 601R−27−164

SB 601R−27−164

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3. MATERIAL INFORMATION

A. Kit Information

None.

B. Consumable Information

For a list of consumables, refer to the different tasks and the Thales service bulletin

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 and the Thales

service bulletin that are given as references in this service bulletin.

D. Disposition of Parts

The table that follows shows the disposition of parts on the aircraft (or spares), and

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

incorporation of this service bulletin.

PRE-SB

PART NUMBER

NAME QTY DC POST-SB

PART NUMBER

C16258AA

(601R59154−3) or

C16258AB

(601R59154−5)

AOA Transducer 2 MOD

C16258AA

(601R59154−3) or

C16258AB

(601R59154−5)

45−150−340

(601R59154−1) AOA Transducer 2 RTN C16258AB(601R59154−5)

Disposition code (DC):

MOD: Modification: For modification of part, refer to Thales Service Bulletin

C16258A−27−006.

RTN: Rotable Pool: Return parts to the address that follows:

For European operators:

THALES CSC c/o SDV Aerospace

Zone de Fret 3− SOGAFRO

3, rue du REMBLAI

BP 16355

95706 ROISSY CH. De GAULLE CEDEX

FRANCE
SERVICE BULLETIN 601R−27−164

SB 601R−27−164

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Mar 30/2015

For Asian operators:

THALES Avionics Asia Pte Ltd.

21 Changi North Rise

Singapore 498788

SINGAPORE

For American operators:

THALES Avionics, Inc

140 Centennial Avenue

PISCATAWAY Township, NJ 08854

USA

1 
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Service Bulletin No.: 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:

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

bulletin requirement.

Comments:

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within the estimated time given.

Comments:

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Overall, I was satisfied with this service

bulletin.

Comments:

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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