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SB 601R- - - 27- - - 139 Page 1 of 1 May 28/2012
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET CL - - -600 - - -2B19 Canadair Regional Jet (CRJ) Aircraft SERVICE BULLETIN 601R - - -27 - - -139 SUBJECT : Flight Controls - - - Elevator Control System - - - Replacement of Pitch-Feel Simulators (PFS) P/N 601R92300 - - -3 and P/N 601R92300 - - -5 by PFS P/N 601R92300 - - -7 This page transmits:
Revision A of Service Bulletin 601R- - - 27- - - 139 pages 1 thru 11, dated May 28/2012 The changes in this revision have no effect on aircraft that have incorporated a previous issue of this service bulletin.
Reason:
Revised Planning Information, paragraph 1., to:
Removed aircraft 8111 from the Aircraft Affected paragraph.
Instructions:
Discard the copy of Service Bulletin 601R- - - 27- - - 139, dated Dec 22/ 2011. Replace with the copy attached.
KEEP GOODRICH SERVICE BULLETIN 1910- - - 27- - - L1910- - - 5 AND REPLACE GOODRICH SERVICE BULLETIN 1910- - - 27- - - 01, DATED DEC 08/11 WITH COPY DATED APR 10/12.
Service Bulletin History:
Initial issue, dated Dec 22/2011.
S.B. 601R- - - 27- - - 139 Page 1 of 11 Dec 22/2011 Revision A, May 28/2012
SERVICE BULLETIN THIS SERVICE BULLETIN IS BEING SENT TO EACH AFFECTED OPERATOR. IF THE OPERATOR
IF THE OPERATOR HAS SOLD AIRCRAFT OR TRANSFERRED AFFECTED SPARES WITHIN THE
LAST SIX MONTHS, THIS SERVICE BULLETIN SHOULD BE FORWARDED TO THE NEW OWNER
UNLESS CONFIRMATION HAS BEEN RECEIVED THAT BOMBARDIER REGIONAL AIRCRAFT HAS LEASED AIRCRAFT , THIS SERVICE BULLETIN SHOULD BE FORWARDED TO THE LESSEE.
DIVISION HAS INCLUDED THE NEW OPERATOR ON THE DISTRIBUTION LIST .
T echnical Publications ATA SYSTEM: 27- - -31 NUMBER: 601R - - -27- - -139 SUBJECT : Flight Controls - - - Elevator Control System - - - Replacement of Pitch-Feel Simulators (PFS) P/N 601R92300 - - -3 and P/N 601R92300 - - -5 by PFS P/N 601R92300 - - -7
1. PLANNING INFORMATION A. Effectivity
(1) Aircraft Affected:
Service Bulletin: CL- - - 600- - - 2B19 Canadair Regional Jet (CRJ) Aircraft with the component part numbers/serial numbers that follow installed:
Part Number: 601R92300- - - 3 (Vendor P/N TY1910- - - 50A), and601R92300- - - 5 (Vendor P/N TY1910- - - 51A).
Installed on Aircraft with Serial Numbers:
7003 thru 7067, 7069 thru 7990, 8000 thru 8110.
Spares:
Examine all spare parts. If a part with a part number listed above is found, it is necessary to incorporate Goodrich Service Bulletin 1910- - - 27- - - L1910- - - 5 and/or 1910- - - 27- - - 01.
All CL - - -600 - - -2B19 If parts with the part 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 Goodrich Service Bulletin 1910- - - 27- - - L1910- - - 5 and/or 1910- - - 27- - - 01.
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 2 of 11 Dec 22/2011 Revision A, May 28/2012 Production: This change will be incorporated before delivery on aircraft with serial number 8111 and subsequent serial numbers.
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 STC, STA or e quivalent action changes to make sure you can complete this service bulletin.
B. Reason
(1) Condition It is possible for some components installed in the Pitch-Feel Simulator (PFS) units, P/N 601R92300- - - 3 and P/N 601R92300- - - 5, to have the conditions that follow:
a broken shear-pin assembly, a broken connector-rod eye-end, a disagreement between the quality of the bearing and the data of the specifications, and a decrease in the primary break-out force over the life of the part.
(2) Evidence T ests done on the lever assembly and the connector-rod eye-end have shown that the lever shear-pin design does not obey the fatigue testing specifications and that there is a decrease of primary break-out force. Also, some PFS units were made with bearings that were incorrect for the function of the PFS.
(3) Objective/Benefit This service bulletin gives the procedure to remove PFS units P/N 601R92300- - - 3 and P/N 601R92300- - - 5, and install PFS units P/N 601R92300- - - 7. The durability of the shear pin in the lever assembly and the e y ee n do ft h et i er o da s s e m b l ya g r e ew i t ht h ed a t ao ft h es p e c i f i c a t i o n .T h e primary breakout force of the PFS unit is increased to make sure that the feel force is kept during operation.
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 3 of 11 Dec 22/2011 Revision A, May 28/2012 C. Description Circuit breakers are opened. Warning placards are installed on the flight controls.
T h el e f ta n dt h er i g h tf o r w a r da c c e s sp a n e l sa r er e m o v e df r o mt h ev e r t i c a ls t a b i l i z e r .
The pitch-feel simulator units are removed. Goodrich Service Bulletins 1910- - - 27- - - L1910- - - 5 and/or 1910- - - 27- - - 01 are done.
The pitch-feel simulators are installed. The control column feel-force and centering check is done. The left and right forward access panels are installed on the vertical stabilizer . The circuit breakers are closed. The warning placards are removed from the flight controls.
D. Compliance Recommended service bulletin. For aircraft that have 20,000 flight hours or less, Bombardier Aerospace recommends that this service bulletin be done at no more than 7000 flight hours or four years, whichever comes first, from the release date on this service bulletin, unless otherwise directed by the airworthiness authority of the operator.
For aircraft that have more than 20,000 flight hours, Bombardier Aerospace recommends that this service bulletin be done at no more than 18 months from the release date on this service bulletin, unless otherwise directed by the airworthiness authority of the operator.
NOTE: It is not necessary to do Service Bulletin 601R- - - 27- - - 144, Flight Controls
- - - Pitch Feel Simulator - - - Functional Test of the Pilot Input Lever of the Pitch-Feel Simulator (PFS) P/N 601R92300- - - 3 and P/N 601R92300- - - 5 when this service bulletin is done.
This service bulletin affects Airworthiness Limitations (AWLs) and/or Damage T olerance Inspections (DTIs). Reference applicable Pre/Post Modsum TC601R18004 and/or service bulletin 601R- - - 27- - - 139 in the Maintenance Requirements Manual (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. M a n p o w e r 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- - -139 S.B. 601R- - - 27- - - 139 Page 4 of 11 Dec 22/2011 Revision A, May 28/2012 Elapsed time such as for paint to dry, sealant to cure, and fuel tank venting.
Preparation for modification (unless speci fied 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.
It will take an estimated 8.0 man-hours to complete this service bulletin. The breakdown of the man-hours is shown in the table that follows:
TASK M A N --- H O U R S ( 1 ) J o b S e t --- U p 1.5
(2) Procedure 2.0
(3) T est 3.0 ( 4 ) C l o s e --- O u t 1.5 NOTE: This estimate do not include the man-hours necessary to do Goodrich Service Bulletins 1910- - - 27- - - L1910- - - 5 and 1910- - - 27- - - 01.
G. Material - - - Price and Availability
(1) Refer to Goodrich Service Bulletin 1910- - - 27- - - L1910- - - 5 and 1910- - - 27- - - 01 for terms and conditions to do the modification of PFS units P/N 601R92300- - - 3/- - - 5 to the new PFS units P/N 601R92300- - - 7.
(2) Refer to paragraph 3.C. for a list of required consumables for incorporation of this service bulletin.
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 5 of 11 Dec 22/2011 Revision A, May 28/2012 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).
T o place an order for parts or kits, please call Bombardier Parts Logistics at 514-855-2999 or 1-866-538-1247.
H. T ooling - - - Price and Availability None.
I. Weight and Balance Not Affected.
J. Electrical Load Data Not Affected.
K. References Modsum TC601R18004, Revision C - - - 1.
Restriction and/or Special Instruction (RSI) C- - -A291 Revision C.
Goodrich Service Bulletin 1910- - - 27- - - 01, Revision 1, dated Apr 10/12.
Goodrich Service Bulletin 1910- - - 27- - - L1910- - - 5, dated Dec 08/2011.
Aircraft Maintenance Manual (AMM).
For Bombardier Aerospace reference only: PCA 05038.
L. Other Publications Affected Aircraft Illustrated Parts Catalog (AIPC).
M. Relationship Chart None.
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 6 of 11 Dec 22/2011 Revision A, May 28/2012
2. ACCOMPLISHMENT INSTRUCTIONS A. Job S e t --- U p Reference Information T able
TASK TITLE A M M 2 4 --- 0 0 --- 0 0 --- 9 1 0 --- 8 0 1Electrical/Electronic Safety Precautions A M M 2 7 --- 3 1 --- 0 0 --- 2 2 0 --- 8 0 7Control Column Feel Force and Centering Check A M M 2 7 --- 3 1 --- 2 0 --- 0 0 0 --- 8 0 1Removal of the Pitch Feel Simulator Unit A M M 2 7 --- 3 1 --- 2 0 --- 4 0 0 --- 8 0 1Installation of the Pitch Feel Simulator Unit A M M 5 5 --- 3 2 --- 0 5 --- 0 0 0 --- 8 0 1Removal of the Forward Access Panels A M M 5 5 --- 3 2 --- 0 5 --- 4 0 0 --- 8 0 1Installation of the Forward Access Panels 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 electrical/electronic safety precautions (Refer to AMM 24- - - 00- - - 00- - - 910- - - 801).
(2) Open, safety, and tag the circuit breakers that follow:
CB PANEL CB NO. NAME ZONE C B P --- 1 F5 PITCH FEEL CH 1 221 C B P --- 2 B8 STAB CH 1 HSTA 222 C B P --- 2 F5 STAB CH 1 HSTCU 222 C B P --- 2 F14 PITCH FEEL CH 2 222 C B P --- 3 A5 STAB CH 2 HSTA 221 C B P --- 4 A1 STAB CH 2 HSTCU 222
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 7 of 11 Dec 22/2011 Revision A, May 28/2012 WARNING: PUT THE SAFETY DEVICES, WARNING SIGNS, AND WARNING
PLACARDS IN POSITION BEFORE YOU START A PROCEDURE ON OR NEAR:
--- F L I G H T C O N T R O L S
- - -FLIGHT CONTROL SURFACES
- - -COMPONENTS THAT MOVE.
MAKE SURE THAT THERE ARE NO PERSONS OR EQUIPMENT ON OR NEAR THE FLIGHT CONTROL SURFACES. ACCIDENTAL MOVEMENT
OF THE FLIGHT CONTROLS CAN CAUSE INJURIES TO PERSONS AND/OR DAMAGE TO EQUIPMENT .
(3) Install the applicable warning placards on the pilot’s and copilot’s control columns and the STAB TRIM/MACH TRIM panel.
(4) Remove the access panels that follow (Refer to AMM 55- - - 32- - - 05- - - 000- - - 801):
ACCESS PANEL DESCRIPTION 326EL Left Forward Access Panel 326ER Right Forward Access Panel
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 8 of 11 Dec 22/2011 Revision A, May 28/2012 B. Procedure Refer to Figure 1.
(1) Remove the two PFS units (1) (Refer to AMM 27- - - 31- - - 20- - - 000- - - 801).
NOTE: It is permitted to upgrade PFS units 601R92300- - - 3/- - - 5 to PFS unit 601R92300- - - 7 with Goodrich Service Bulletins 1910- - - 27- - - L1910- - - 5.
and 1910- - - 27- - - 01.
(2) Install the two new PFS units (1) (Refer to AMM 27- - - 31- - - 20- - - 400- - - 801).
C. Close Out
(1) Remove all tools, equipment, and unwanted materials from the work area.
(2) Remove the warning placards from the pilot’s and copilot’s control columns and the STAB TRIM/MACH TRIM panel.
(3) Remove the tags and close the circuit breakers that follow:
CB PANEL CB NO. NAME ZONE C B P --- 1 F5 PITCH FEEL CH 1 221 C B P --- 2 B8 STAB CH 1 HSTA 222 C B P --- 2 F5 STAB CH 1 HSTCU 222 C B P --- 2 F14 PITCH FEEL CH 2 222 C B P --- 3 A5 STAB CH 2 HSTA 221 C B P --- 4 A1 STAB CH 2 HSTCU 222
(4) Do the control column feel-force and centering check (Refer to AMM 27- - - 31- - - 00- - - 220- - - 807).
(5) Install the access panels that follow (Refer to AMM 55- - - 32- - - 05- - - 400- - - 801):
ACCESS PANEL DESCRIPTION 326EL Left Forward Access Panel 326ER Right Forward Access Panel
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 9 of 11 Dec 22/2011 Revision A, May 28/2012
(6) When this service bulletin is completed, make this entry in the applicable logbook(s): “Service Bulletin 601R- - - 27- - - 139, Revision A, Flight Controls - - - Elevator Control System - - - Replacement of Pitch-Feel Simulators (PFS) P/N 601R92300- - - 3 and P/N 601R92300- - - 5 by PFS P/N 601R92300- - - 7, incorporated.”
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 10 of 11 Dec 22/2011 Revision A, May 28/2012 Pitch - - -Feel Simulator Unit Figure 1 rsb601r27139_001.dg,mgr, 18/11/11 A A
1. Pitch Feel Simulator 601R92300- -3 Pre- -Mod, 601R92300- -5 Pre- -Mod, 601R92300- -7 Post- -Mod.
LEGEND 1
SERVICE BULLETIN 601R- - -27- - -139 S.B. 601R- - - 27- - - 139 Page 11 of 11 Dec 22/2011 Revision A, May 28/2012
3. MATERIAL INFORMATION A. Kit Information None.
B. Consumables Required For a complete list of consumables, refer to the different tasks and the Goodrich service bulletin given as references in this service bulletin.
C. Special T ools and Equipment For a list of special tools and equipment, refer to the different tasks and the Goodrich service bulletin given as references in this service bulletin.
D. Disposition of Parts Pre - - -SB Part Number Name Qty DC P o s t --- S BPart Number 601R92300- - - 3 (TY1910- - - 50A) OR Pitch-Feel Simulator Unit 2 RTN 601R92300- - - 7(TY1910- - - 54A) 601R92300- - - 5 (TY1910- - - 51A) Pitch-Feel Simulator Unit 2 RTN 601R92300- - - 7(TY1910- - - 54A) Disposition code (DC):
RTN Rotable Pool: Refer to Goodrich Service Bulletins 1910- - - 27- - - L1910- - - 5 and 1910- - - 27- - - 01.