Bombardier Service Bulletin 601R-27-160

the evolution of mobility SB 601R- - - 27- - - 160 Page 1 of 1 Oct 22/2015

SERVICE BULLETIN

REVISION TRANSMITTAL SHEET CL- - -600- - -2B19 Canadair Regional Jet (CRJ) Aircraft SERVICE BULLETIN 601R - - -27 - - -160 SUBJECT : Flight Controls - - - Horizontal Stabilizer Trim Actuator (HSTA) - - - Serialization of the HSTA Pins and Trunnions This page transmits:

Revision D of Service Bulletin 601R- - - 27- - - 160, dated Oct 22/2015 For aircraft that have had the initial issue or Revision A of this service bulletin incorporated, it is necessary to do PART B of this service bulletin.

The changes in this revision have no effect on aircraft that have had Revision B or Revision C of this service bulletin incorporated.

Reason:

Revised Accomplishment Instructions, paragraph 2., to:

Add a note in the Job Set-Up section of PARTA Add a step in the Procedure section of PART A Add a note and change a table in the Procedure section of PART A Add a note in the Job Close-Out section of PART A Add a note in the Job Set-Up section of PART B Add some steps and a note in the Procedure section of PART B Add a note in the Job Close-Out section of PART B 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- - - 27- - - 160, Revision C, dated May 04/2015.

Replace with the copy attached.

Service Bulletin History:

Initial issue, dated Sep 29/2011 Revision A, dated Oct 03/2012 Revision B, dated Feb 20/2015 Revision C, dated May 04/2015 1

the evolution of mobility SB 601R−27−160 Page 1 of 97 Sep 29/2011 Revision D, Oct 22/2015

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: 27−42 NUMBER: 601R−27−160 SUBJECT: Flight Controls − Horizontal Stabilizer Trim Actuator (HSTA) − Serialization of the HSTA Pins and Trunnions

1. PLANNING INFORMATION A. Effectivity

(1) Aircraft Affected:

Service Bulletin: CL−600−2B19 aircraft with serial numbers 7003 thru 7067, 7069 thru 7990, 8000 thru 8113.

Production: Aircraft serial number 8114 and subsequent serial numbers will have an equivalent modification 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), and Supplemental Type Approvals (STAs) or alternative action changes to make sure you can complete this service bulletin.

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 2 of 97 Sep 29/2011 Revision D, Oct 22/2015 B. Reason

(1) Condition The pins and the trunnions of the HSTA are not serialized. Therefore, it is not possible to keep a record of the life of the pins and the trunnions installed on the HSTA.

The pins and/or the trunnions of the HSTA can have a non-conformance report (NCR) condition, and it is possible that the pins and/or the trunnions of the HSTA are not properly identified.

(2) Evidence Operators have reported HSTA pins and trunnions with a NCR condition.

(3) Objective/Benefit This service bulletin gives the procedure to inspect the HSTA pins, the trunnions, and their attach holes, and the aircraft structure attach holes. This service bulletin also gives the procedure to identify and serialize the pins and the trunnions.

The inspection of the attach holes will make sure that the pins and the trunnions are installed correctly. The identification and the serialization of the pins and the trunnions, on the attachments of the HSTA, will give traceability and service history to agree with Federal Aviation Regulation FAR 25.1529.

C. Description This service bulletin is divided into 2 parts: PART A and PART B.

PART A − Inspection and Serialization of the HSTA Pins, and Trunnions Access panels are removed. Circuits breakers are opened. The HSTA is removed.

An inspection is done to the HSTA pins, the trunnions, and their attach holes, and to the aircraft structure attach holes. The pins and the trunnions are identified, and serialized. If necessary, the pins and/or the trunnions are replaced. The HSTA is installed. Return-to-service tests are done.

PART B − Inspection of the Attach Holes of the HSTA Pins, and Trunnions Access panels are removed. Circuits breakers are opened. The HSTA is removed.

An inspection is done to the attach holes of the HSTA pins and trunnions, and to the aircraft structure attach holes. If necessary, the identification of the pins and/or the trunnions are changed. If necessary, the pins and/or the trunnions are replaced.

The HSTA pins and the trunnions are examined for damage. The HSTA is installed.

Return-to-service tests are done.

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 3 of 97 Sep 29/2011 Revision D, Oct 22/2015 D. Compliance Recommended service bulletin.

For aircraft that have not incorporated the initial issue or Revision A of this service bulletin.

Bombardier recommends that PART A of this service bulletin be done at no more than 5000 flight hours, or no later than 5 years from the initial release date of this service bulletin, or no later than the subsequent inspection of Airworthiness Limitation (AWL) 27−40−102 of the Maintenance Requirements Manual (MRM) Part 2, Appendix B, whichever comes first, or unless otherwise directed by the airworthiness authority of the operator.

For aircraft that have had the initial issue or Revision A of this service bulletin incorporated Bombardier recommends that PART B of this service bulletin be done at no more than 9600 flight hours, or no later than 5 years from the release date of revision B of this service bulletin, which ever comes first, unless otherwise directed by the airworthiness authority of the operator.

For all aircraft NOTE: If it is not possible to complete all th e instructions in this service bulletin because of the configuration of the aircraft, speak with a representative of Bombardier in the Customer Response Center 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 affects Airworthiness Limitations (AWLs) and/or Damage Tolerance Inspections (DTIs). Reference applicable Pre/Post Modsum TC601R18078, TC601R18419, and/or service bulletin 601R−27−160 in the (MRM).

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.

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 4 of 97 Sep 29/2011 Revision D, Oct 22/2015 −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.

PART A − Inspection and Serialization of the HSTA Pins, and Trunnions It will take an estimated 22.0 man-hours to complete PART A of this service bulletin. The man-hours are divided in the table that follows (elapsed cure time is not included in the man-hour summary given above):

TASK MAN-HOURS

(1) Job Set-Up 8.0

(2) Procedure 3.0

(3) Test 3.0

(4) Job Close-Out 8.0 NOTE: The man-hours for the procedure do not include the hours to replace damaged parts.

PART B − Inspection of the Attach Holes of the HSTA Pins and Trunnions It will take an estimated 20.0 man-hours to complete PART B of this service bulletin. The man-hours are divided in the table that follows (elapsed cure time is not included in the man-hour summary given above):

TASK MAN-HOURS

(1) Job Set-Up 8.0

(2) Procedure 1.0

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 5 of 97 Sep 29/2011 Revision D, Oct 22/2015

TASK MAN-HOURS

(3) Test 3.0

(4) Job Close-Out 8.0 NOTE: The man-hours for the procedure do not include the hours to replace damaged parts.

G. Material − Price and Availability

(1) The parts in the table that follows are/can be necessary to do this service bulletin and are available from Bombardier.

PART NUMBER NAME QTY ALTERNATIVE PARTNUMBER /C0001 601R92309−3 Lower pin 2 601R92309−1 or601R92309−1PP 601R92310−3 Upper pin 2 601R92310−1 or601R92310−1PP 601R92386−3 Trunnion 4 601R92386−1 NAS42DD6−25 Spacer 4 − NAS42DD8−25 Spacer 4 − K601R92308−51 /C0019 Trunnion 4 − K601R92308−53 /C0019 Lower pin 2 − K601R92308−55 /C0019 Upper pin 2 − NAS1580A3R8DX Bolt, 1st oversize 4 − NAS1580A3R8DY Bolt, 2nd oversize 4 − NAS1580A3R13DX Bolt, 1st oversize 4 − NAS1580A3R13DY Bolt, 2nd oversize 4 − NAS8604D8 Bolt, nominal 4 − NAS8604D8X Bolt, 1st oversize 4 − NAS8604D8Y Bolt, 2nd oversize 4 − /C0001 If the alternative part number is ordered, it is necessary to give a serial number and change the identification of the part as given in this service bulletin.

/C0019 These parts are necessary only if a NCR condition is found during the inspection.

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 6 of 97 Sep 29/2011 Revision D, Oct 22/2015

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

Bombardier Service Bulletin Kit Support Team 123 Garratt Blvd, N42−24 Toronto, Ontario Canada M3K 1Y5 Fax: 416-375-3060 Phone: 416-375-3920 e-mail: sbkits@aero.bombardier.com Please contact the Service Bulletin Kit Support Team at the address above for terms and conditions.

(3) The kits in the tables that follow are available from Bombardier.

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

KIT NUMBER NAME 601R27−160K1/C0001 HSTA − Laminated Shims Kit 601R27−160K2/C0001 HSTA − Nominal Hardware Kit 601R27−160K3/C0019 HSTA − Trunnion Oversize Hardware Kit 601R27−160K4/C0019 HSTA − Pin Oversize Hardware Kit /C0001 One kit for each aircraft.

/C0019 One kit for each operator. To replace parts taken from the kit 601R27−160K3 and 601R27−160K4, speak with a representative of the Service Bulletin Kit Support Team at the address below.

(4) Please send a purchase order to the address below to schedule kit delivery:

Bombardier Service Bulletin Kit Support Team 123 Garratt Blvd, N42−24 Toronto, Ontario Canada M3K 1Y5 Fax: 416-375-3060 Phone: 416-375-3920 e-mail: sbkits@aero.bombardier.com Please contact the Service Bulletin Kit Support Team at the address above for terms and conditions.

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

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 7 of 97 Sep 29/2011 Revision D, Oct 22/2015 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−A275, Revision F Modification Summary TC601R18078, Revision D−1 Modification Summary TC601R18419, Revision D Generic Repair Engineering Order (GREO) 601R−27−42−007, Rev B or latest approved version Generic Repair Engineering Order (GREO) 601R−27−42−008, Rev A, or latest approved revision Aircraft Maintenance Manual (AMM) Structural Repair Manual (SRM) Maintenance Requirement Manual (MRM) Nondestructive Testing Manual (NDTM) For Bombardier reference only: PCA 05479 and PCA 06879 L. Other Publications Affected Aircraft Maintenance Manual (AMM) Aircraft Illustrated Parts Catalogue (AIPC) Maintenance Requirement Manual (MRM)

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 8 of 97 Sep 29/2011 Revision D, Oct 22/2015 M. Relationship Chart PART A − Inspection and Serialization of the HSTA Pins, and Trunnions PRE-SB

PART NUMBER NAME POST -SBPART NUMBER NAME 600−92383−5 Lower Pin 601R92309−3 or K601R92308−11 or K601R92308−33 or K601R92308−53 Lower Pin 600−92383−7 Lower Pin 601R92309−3 or K601R92308−13 or K601R92308−33 or K601R92308−53 Lower Pin 601R92309−1 /C0019 Lower Pin 601R92309−3 or K601R92308−15 or K601R92308−33 or K601R92308−53 Lower Pin 601R92309−3 Lower Pin 601R92309−3 or K601R92308−33 or K601R92308−53 Lower Pin NCR# xxxxxx−x /C0001 Lower Pin K601R92308−33 orK601R92308−53 Lower Pin 600−92384−5 Upper Pin 601R92310−3 or K601R92308−5 or K601R92308−35 or K601R92308−55 Upper Pin 600−92384−7 Upper Pin 601R92310−3 or K601R92308−7 or K601R92308−35 or K601R92308−55 Upper Pin 601R92310−1 /C0019 Upper Pin 601R92310−3 or K601R92308−9 or K601R92308−35 or K601R92308−55 Upper Pin 601R92310−3 Upper Pin 601R92310−3 or K601R92308−35 or K601R92308−55 Upper Pin

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 9 of 97 Sep 29/2011 Revision D, Oct 22/2015 PRE-SB

PART NUMBER NAMEPOST -SBPART NUMBERNAME NCR# xxxxxx−x /C0001 Upper Pin K601R92308−35 orK601R92308−55 Upper Pin 601R92386−1 Trunnion 601R92386−3 or K601R92308−19 or K601R92308−31 or K601R92308−51 Trunnion 601R92386−3 Trunnion 601R92386−3 or K601R92308−31 or K601R92308−51 Trunnion NCR# xxxxxx−x /C0001 Trunnion K601R92308−31 orK601R92308−51 Trunnion /C0001 P/N NCR# xxxxxx−x Can be any numerical and/or letter combination which identifies a Non-Conformance Part (NCR) /C0019 Lower pin P/N 601R92309−1PP is an alternative to P/N 601R92309−1 and upper pin P/N 601R92310−1PP is an alternative to P/N 601R92310−1.

PART B − Inspection of the Attach Holes of the HSTA Pins and Trunnions PRE-SB

PART NUMBER NAME POST -SBPART NUMBER NAME 601R92309−3 Lower Pin 601R92309−3 or K601R92308−33 or K601R92308−53 Lower Pin K601R92308−11 Lower Pin 601R92309−3 or K601R92308−11 or K601R92308−33 or K601R92308−53 Lower Pin K601R92308−13 Lower Pin 601R92309−3 or K601R92308−13 or K601R92308−33 or K601R92308−53 Lower Pin K601R92308−15 Lower Pin 601R92309−3 or K601R92308−15 or K601R92308−33 or K601R92308−53 Lower Pin

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 10 of 97 Sep 29/2011 Revision D, Oct 22/2015 PRE-SB

PART NUMBER NAMEPOST -SBPART NUMBERNAME NCR# xxxxxx−x /C0001 Lower Pin K601R92308−33 orK601R92308−53 Lower Pin 601R92310−3 Upper Pin 601R92310−3 or K601R92308−35 or K601R92308−55 Upper Pin K601R92308−5 Upper Pin 601R92310−3 or K601R92308−5 or K601R92308−35 or K601R92308−55 Upper Pin K601R92308−7 Upper Pin 601R92310−3 or K601R92308−7 or K601R92308−35 or K601R92308−55 Upper Pin K601R92308−9 Upper Pin 601R92310−3 or K601R92308−9 or K601R92308−35 or K601R92308−55 Upper Pin NCR# xxxxxx−x /C0001 Upper Pin K601R92308−35 orK601R92308−55 Upper Pin 601R92386−3 Trunnion 601R92386−3 or K601R92308−31 or K601R92308−51 Trunnion K601R92308−19 Trunnion 601R92386−3 or K601R92308−19 or K601R92308−31 or K601R92308−51 Trunnion NCR# xxxxxx−x /C0001 Trunnion K601R92308−31 orK601R92308−51 Trunnion /C0001 P/N NCR# xxxxxx−x Can be any numerical and/or letter combination which identifies a Non-Conformance Part (NCR)

SERVICE BULLETIN 601R−27−160 SB 601R−27−160 Page 11 of 97 Sep 29/2011 Revision D, Oct 22/2015

2. ACCOMPLISHMENT INSTRUCTIONS PART A − Inspection and Serialization of the HSTA Pins and Trunnions Reference Information

REFERENCE DESIGNATION AMM 12−00−07−861−801 Connect External AC Power AMM 20−21−00−910−801 Torque procedures for Threaded Fasteners AMM 24−00−00−910−801 Electrical/Electronic Safety Precautions AMM 27−40−00−710−802 Operational Test of the Horizontal Stabilizer Trim System AMM 27−41−00−740−801 Functional Check (Ground Maintenance Test) of the HSTCU AMM 27−42−01−000−801 Removal of the Horizontal-Stabilizer Trim Actuator (HSTA) AMM 27−42−01−400−801 Installation of the Horizontal-Stabilizer Trim Actuator (HSTA) AMM 51−26−00−110−801 Solvent Cleaning AMM 55−32−05−000−806 Removal of the Middle Upper Fairing AMM 55−32−05−400−806 Installation of the Middle Upper Fairing AMM 55−32−05−000−807 Removal of the Middle Lower Fairing AMM 55−32−05−400−807 Installation of the Middle Lower Fairing NDTM 51−20−09−PART 1 Visual-Inspection Procedures SRM 51−10−06 Damage SRM 51−21−11 Corrosion Prevention Procedures SRM 51−23−00 Pressure, Environmental, Fuel Tank and Firewall Sealing SRM 51−25−06 Fluid-Resistant (FR) Epoxy Primer SRM 51−25−16 Fluid-Resistant (FR) Polyurethane Topcoat