# Bombardier Service Bulletin 601R-22-018

Copy: Revision A ("SB 601R-22-018A"), 11 pages: PDF https://openairdocs.org/files/sha256/70/99/709904483e16c8f035495474dd521630f6b02e6b0ce511af3294cb36f5d73aad; text https://openairdocs.org/service-documents/bombardier/601r-22-018/file/709904483e16.md. Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2016-5590; AD 2016-14-07 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Bombardier](https://openairdocs.org/service-documents/bombardier.md)
- Type: Service bulletin (Service Bulletin)
- Number: 601R-22-018
- Latest revision known: 601R-22-018, Revision A, dated November 3, 2015 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/bombardier/601r-22-018

## ADs that cite it (1) (OpenAirDocs)

Newest first, with the revision each names, as OpenAirDocs read it from the AD's text.

- [AD 2016-14-07](https://openairdocs.org/ad/2016-14-07.md), effective Aug 16, 2016: Revision A

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/bombardier/601r-22-018/proposed.md).

## Text (11 pages)

Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2016-5590; AD 2016-14-07 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1

the evolution of mobility
SB 601R- - - 22- - - 018
Page 1 of 1
Nov 3/2015
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
CL- - -600- - -2B19 Canadair Regional Jet (CRJ) Aircraft
SERVICE BULLETIN 601R - - -22 - - -018
SUBJECT : Auto Flight - - - Integrated Avionics Processor System (IAPS) - - - Hardware
Change in the Flight Control Computer (FCC)
This page transmits:
Revision A of Service Bulletin 601R- - - 22- - - 018, dated Nov 03/2015.
The changes in this revision have no effect on aircraft that have had
this service bulletin incorporated.
Reason:
Revised Planning Information, paragraph 1., to:
Add 622- - - 9815- - - 104, 622- - - 9815- - - 204, and 622- - - 9815- - - 304 to the part number.
Revised Material Information, paragraph 3., to:
Add 622- - - 9815- - - 104, 622- - - 9815- - - 204, and 622- - - 9815- - - 304 to disposition table.
This revision also includes small editorial changes that do not have an effect on the technical
content.
Instructions:
Discard the copy of Service Bulletin 601R- - - 22- - - 018, dated Aug 17/2015. Replace with
the copy attached.
Keep Rockwell Collins Service Bulletin FCC- - - 40XX- - - 22- - - 50.
Service Bulletin History:
Initial issue, dated Aug 17/2015.
1

### Page 2

the evolution of mobility
SB 601R−22−018
Page 1 of 9
Aug 17/2015
Revision A, Nov 03/2015
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: 22−12 NUMBER: 601R−22−018
SUBJECT:  Auto Flight − Integrated Avionics Processor System (IAPS) − Hardware
Change in the Flight Control Computer (FCC)
1. PLANNING INFORMATION
A. Effectivity
(1) Aircraft Affected:
Service Bulletin: CL−600−2B19 aircraft with the components that follow
installed:

### Page 3

SERVICE BULLETIN  601R−22−018
SB 601R−22−018
Page 2 of 9
Aug 17/2015
Revision A, Nov 03/2015
PART NUMBER:
622−9815−037, 622−9815−104,
622−9815−204, 622−9815−304,
622−9815−404, 622−9815−604,
622−9815−704, 622−9815−904/C0001
PART SERIAL
NUMBERS /C0019:
All serial numbers before serial number
45CKCM.
/C0001 Rockwell Collins Service Bulletin
FCC−40XX−22−50 is incorporated in serial
numbers 45N61C and 45CK3P .
INSTALLED AT THE
TIME OF DELIVERY
ON AIRCRAFT
SERIAL NUMBERS:
7003 thru 7067, 7069 thru 7990, 8000 thru
8999
SPARES:
Examine all spare parts. If a part with a serial
number listed above are found, it is
necessary to incorporate Rockwell Collins
Service Bulletin FCC−40XX−22−50.
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 Rockwell Collins Service Bulletin
FCC−40XX−22−50.
/C0019 Refer to Rockwell Collins Service Letter SIL 4−99 for the serial
number sequence.
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.

### Page 4

SERVICE BULLETIN  601R−22−018
SB 601R−22−018
Page 3 of 9
Aug 17/2015
Revision A, Nov 03/2015
B. Reason
(1) Condition
When the Auto Flight Control System (AFCS) is in a speed mode (CLB, DES,
IAS or MACH), it is possible for the reference airspeed (known as the Speed
Bug) on the airspeed scale to change without pilots input. The flight director
will show vertical guidance to get or maintain the reference airspeed. If the
autopilot is engaged, the aircraft will automatically follow that vertical
guidance and cause a pitch up or pitch down movement of the aircraft to get
the reference airspeed.
(2) Evidence
Some operators told Bombardier that an uncommanded reference airspeed
change can occur without pilots input during a flight with CLIMB. DESCENT ,
or Indicated Airspeed (IAS)/MACH modes engaged.
(3) Objective/Benefit
This service bulletin gives the procedure to remove the FCCs and install the
FCCs with Rockwell Collins Service Bulletin FCC−40XX−22−50 incorporated.
This modification will make sure that the FCC can correctly read the input
data from the Input/Output Concentrator (IOC), and decrease the quantity of
occurrence of uncommanded changes of the reference airspeed.
C. Description
The FCCs are removed and the FCCs with Rockwell Collins Service Bulletin
FCC−40XX−22−50 incorporated are installed.
D. Compliance
Recommended service bulletin.
Bombardier recommends that this service bulletin be done at no more than 33
months from the release date of this service bulletin, unless otherwise directed by
the airworthiness authority of the operator.
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 in 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 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).

### Page 5

SERVICE BULLETIN  601R−22−018
SB 601R−22−018
Page 4 of 9
Aug 17/2015
Revision A, Nov 03/2015
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 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 2.50 man-hours to complete this service bulletin. The
man-hours are divided in the table that follows:
TASK MAN-HOURS
(1)  Job Set-Up 0.25
(2)  Procedure 0.50
(3)  Test 1.50
(4)  Job Close-Out 0.25
NOTE: These estimates do not include the man-hours necessary to do Rockwell
Collins Service Bulletin FCC−40XX−22−50.

### Page 6

SERVICE BULLETIN  601R−22−018
SB 601R−22−018
Page 5 of 9
Aug 17/2015
Revision A, Nov 03/2015
G. Material − Price and Availability
There are no kits for this service bulletin.
(1) Refer to Rockwell Collins Service Bulletin FCC−40XX−22−50 for terms and
conditions to do the modification of the FCC P/N 622−9815−037, −104,
−204, −304, −404, −604, −704, and −904.
(2) 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.
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−A299, Issue C
Rockwell Collins Service Information Letter SIL 4−99
Rockwell Collins Service Bulletin FCC−40XX−22−50, Revision 1, dated 07/06/2015
Aircraft Maintenance Manual (AMM)
For Bombardier reference only: PCA 6896
L. Other Publications Affected
None.
M. Relationship Chart
Not applicable.

### Page 7

SERVICE BULLETIN  601R−22−018
SB 601R−22−018
Page 6 of 9
Aug 17/2015
Revision A, Nov 03/2015
2. ACCOMPLISHMENT INSTRUCTIONS
Reference Information
REFERENCE DESIGNATION
AMM 22−12−14−000−801 Removal of the FCC
AMM 22−12−14−400−801 Installation of the FCC
AMM 24−00−00−910−801 Electrical/Electronic Safety Precautions
AMM 24−00−00−910−802 Electrostatic Discharge Safety Precautions
A. Job Set-Up
NOTE: The steps in the Job Set-Up section of this service bulletin are
recommended steps. The steps give a recommendation to get access
to the work area. This recommendation is to give a safe work area and
to minimize possible damage to surrounding aircraft parts. Alternative
steps can be used at the operator discretion.
WARNING: OBEY ALL THE SAFETY PRECAUTIONS WHEN YOU DO
MAINTENANCE ON OR NEAR ELECTRICAL/ELECTRONIC
EQUIPMENT. IF YOU DO NOT OBEY THE SAFETY PRECAUTIONS,
INJURIES TO PERSONS AND/OR DAMAGE TO THE EQUIPMENT CAN
OCCUR.
(1) Obey all the electrostatic discharge safety precautions (refer
to AMM 24−00−00−910−802).
(2) Obey all the electrical/electronic safety precautions (refer
to AMM 24−00−00−910−801).
(3) Open the main avionics-compartment door.

### Page 8

SERVICE BULLETIN  601R−22−018
SB 601R−22−018
Page 7 of 9
Aug 17/2015
Revision A, Nov 03/2015
B. Procedure
(1) 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 in 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 for analysis
and to get an approved disposition to complete this service bulletin.
Refer to Figure 1 
(2) Remove the FCCs from the Integrated Avionics Processor System (IAPS)
(refer to AMM 22−12−14−000−801).
(3) Install the FCCs, with Rockwell Collins Service Bulletin FCC−40XX−22−50
incorporated, in the IAPS (refer to AMM 22−12−14−400−801).
C. Job Close-Out
NOTE: The steps in the Job Close-Out section of this service bulletin, except for
the return-to-service tests, are recommended steps. The steps give a
recommendation to install components removed during the Job Set-Up.
This recommendation is to make sure that the aircraft is safe and ready
to return to service. Alternative steps can be used at the operator
discretion.
(1) Remove all tools, equipment, and unwanted materials from the work area.
(2) Close the main avionics-compartment door.
(3) When this service bulletin is completed, make this entry in the applicable
logbooks: /quoteblleftService Bulletin 601R−22−018, Revision A,  Auto Flight −
Integrated Avionics Processor System (IAPS) − Hardware Change in the
Flight Control Computer (FCC), incorporated."

### Page 9

SERVICE BULLETIN  601R−22−018
SB 601R−22−018
Page 8 of 9
Aug 17/2015
Revision A, Nov 03/2015
FCC − Removal/Installation
Figure 1 (Sheet 1 of 1)
rsb601r22018_001, YL, May12, 2015
1A
1B
2B
2A
X
X
X
X
1
LEGEND
1. Flight Control Computer FCC.
A
A
B
B

### Page 10

SERVICE BULLETIN  601R−22−018
SB 601R−22−018
Page 9 of 9
Aug 17/2015
Revision A, Nov 03/2015
3. MATERIAL INFORMATION
A. Kit Information
None.
B. Consumable Information
For a list of consumables, refer to the different tasks and the Rockwell Collins
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
Rockwell Collins service bulletin that are given as references in this service bulletin.
D. Disposition of Parts
The table that follows shows the relation between the new parts and/or modified
parts to be installed during the incorporation of this service bulletin and the
disposition of the affected parts from the aircraft (or spares).
PRE-SB
PART NUMBER
NAME QTY DC POST -SB
PART NUMBER
622−9815−037, or
622−9815−104, or
622−9815−204, or
622−9815−304, or
622−9815−404, or
622−9815−604, or
622−9815−704, or
622−9815−904
FCC 2 MOD
622−9815−037, or
622−9815−104, or
622−9815−204, or
622−9815−304, or
622−9815−404, or
622−9815−604, or
622−9815−704, or
622−9815−904
Disposition code (DC):
MOD: Modification: Refer to Rockwell Collins Service Bulletin
FCC−40XX−22−50.
1 
1

### Page 11

the evolution of mobility
THANK YOU FOR YOUR COMMENTS
SERVICE BULLETIN FEEDBACK FORM/COMPLIANCE SHEET
(YOUR COMMENTS HELP US WRITE BETTER SERVICE BULLETINS)
Service Bulletin No.: Revision:
Aircraft Serial Number: Date:
S T R O N G LY
DISAGREE
DISAGREE AGREE S T R O N G LY
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: T elephone or Fax:
FAX your comments or feedback to (450) 476 - - -7300
or e-mail to crj_sb_evaluation_form@aero.bombardier.com

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