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SB 601R- - - 24- - - 131 Page 1 of 17 Jun 28/2012
SERVICE BULLETIN T echnical 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: 24- - -21 NUMBER: 601R - - -24- - -131 S U B J E C T: E l e c t r i c a l P o w e r --- P r i m a r y A C --- G e n e r a t i o n S y s t e m --- I n s p e c t i o n f o r Chafing and Installation of Protective Conduit on the Generator Power Cables
1. PLANNING INFORMATION A. Effectivity
(1) Aircraft Affected:
Service: CL- - - 600- - - 2B19 aircraft with serial numbers 7075, 7136, 7140, 7152, 7176, 7180, 7351, 7730, 7755, 7763, 8043, 8046 thru 8049, 8051 thru 8057, 8060, 8063, 8065 thru 8069, 8071 thru 8094, 8096 thru 8100, 8102, and 8104.
Production: Aircraft with 8106 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 STC, STA or e quivalent action changes to make sure you can complete this service bulletin.
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 2 of 17 Jun 28/2012 B. Reason
(1) Condition The generator power cables can rub against the support brackets of the auxiliary-aft fuel tank. Damage can occur to the insulation sleeve of the generator power cables. This can cause a short circuit, arcing, and a malfunction of one or both main generators.
(2) Evidence A fouling condition was found between the generator power cables and the support brackets of the auxiliary-aft fuel tank during a quality control inspection in production.
(3) Objective/Benefit This service bulletin gives the procedure to do a visual inspection and to repair the generator power cables, if damages are found. Also, to install protective conduits and edging grommets on the potential chafing areas.
Installation of protective conduits and edging grommets will prevent damage to the generator power cables.
C. Description Circuit breakers are opened. The cargo-compartment door is opened. If necessary, the ceiling panels between FS559.00+80.00 and FS574.00 are removed.
A visual inspection of the generator power cables is done. If the insulation sleeve of the generator power cables is damaged and the wire strands of the generator power cables are not damaged, the generator power cables are repaired. If the wire strands of the generator power cables are damaged, the T echnical Help Desk is called to get a disposition. Protective conduits are installed on the generator power cables and edging grommets are installed on the fuel tank support-brackets.
The circuit breakers are closed. If removed, the ceiling panels are installed. The cargo-compartment door is closed. If the generator power cables were repaired, the operational test of the left and/or right Integrated Drive Generator (IDG) is done.
D. Compliance Recommended Service Bulletin.
Bombardier recommends that this service bulletin be done before July 31, 2016, unless otherwise directed by the airworthiness authority of the operator.
This service bulletin does not affect Airworthiness Limitations (AWLs) or Damage T olerance Inspections (DTIs).
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 3 of 17 Jun 28/2012 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.
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 9.5 man-hours to complete this service bulletin. The man-hours are divided in the table that follows:
TASK MAN-HOURS
(1) Job Set-Up 1.5
(2) Procedure 3.0
(3) T est 2.0
(4) Job Close-Out 3.0
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 4 of 17 Jun 28/2012 NOTE: These estimates do not include the man-hours necessary to do the repair of the generator power cables. Add 1.0 hour for each repair of the generator power cables between FS574.00 and FS559.00 + 112.00 and add 2.0 hours for each repair of the generator power cables between FS559.00 + 96.00 and FS559.00 + 80.00.
NOTE: These estimates do not include the man-hours necessary to remove and install the furnishing panels or equipments that were installed with an STC.
G. Material - - - Price and Availability
(1) The kit in the table that follows is available from Bombardier Commercial Aircraft.
NOTE: For a list of kit contents, refer to paragraph 3.A.
KIT NUMBER NAME 601R24- - - 131K1 Protection of the Generator Power Cable
(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).
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 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.
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 5 of 17 Jun 28/2012 I. Weight and Balance WEIGHT ARM MOMENT ¡ +0 . 6l b + 662.8 in. + 0.398 (1000 lb-in.)
+0 . 2 7k g + 16.84 m + 0.0046 (1000 kg-m) ¡ The value in the Moment column is divided by 1000.
Refer to Weight and Balance Manual.
J. Electrical Load Data Not changed.
K. References Restriction and/or Special Instruction (RSI) C- - -A242.
Modification Summary TC601R18248, Revision A.
Repair Engineering Order (REO) 601R- - - 24- - - 21- - - 004.
Aircraft Maintenance Manual (AMM) Structural Repair Manual (SRM) Electrical/Electronic Components - - - Standard Practices Manual (ESPM) Wiring Diagram Manual (WDM) For Bombardier reference only: PCA 6582.
L. Other Publications Affected None M. Relationship Chart Not applicable.
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 6 of 17 Jun 28/2012
2. ACCOMPLISHMENT INSTRUCTIONS Reference Information
REFERENCE DESIGNATION A M M 2 4 --- 0 0 --- 0 0 --- 9 1 0 --- 8 0 1 Electrical/Electronic Safety Precautions A M M 2 4 --- 1 1 --- 0 1 --- 7 1 0 --- 8 0 1Operational T est of the Left IDG (With Engines Started) A M M 2 4 --- 1 1 --- 0 1 --- 7 1 0 --- 8 0 2Operational T est of the Right IDG (With Engines Started) A M M 2 5 --- 5 2 --- 0 1 --- 0 0 0 --- 8 0 1Removal of the Cargo Compartment Sidewall Linings A M M 2 5 --- 5 2 --- 0 1 --- 0 0 0 --- 8 0 2Removal of the Cargo Compartment Rear Bulkhead Linings A M M 2 5 --- 5 2 --- 0 1 --- 4 0 0 --- 8 0 1Installation of the Cargo Compartment Sidewall Linings A M M 2 5 --- 5 2 --- 0 1 --- 4 0 0 --- 8 0 2Installation of the Cargo Compartment Rear Bulkhead Linings E S P M 2 0 --- 0 0 --- 0 0 Standard Practices - - - Description and Operation E S P M 2 0 --- 1 2 --- 0 0 Wiring - - - Removal/Installation S R M 5 1 --- 2 2 --- 3 8 Attaching Nylon Grommets and Nylon Caterpillar- - -Protector Strips with Adhesive S R M 5 1 --- 2 3 --- 0 0 Pressure, Environmental, Fuel T ank and Firewall Sealing S R M 5 1 --- 2 6 --- 0 0 Cleaning T olerance Information Linear T olerances Angular T olerance X.XX in. (X.X mm) X.X in. (X mm) + / --- 0˚ 30”+/- - - 0.03 in. +/--- 0.1 in.
+ / --- 0 . 8 m m + / --- 3 m m NOTE: The tolerances above apply to the dimensions given in this service bulletin, except when specified differently.
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 7 of 17 Jun 28/2012 A. Job Set-Up 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:
For Aircraft 7075, 7136, 7140, 7152, 7176, 7180, 7351, 7730, 7755, and 7763 CB PANEL CB NO. NAME ZONE C B P --- 1 M2 ENG IGN A 221 C B P --- 1 M3 ENG IGN B 221 C B P --- 1 M4 ENG START R 221 C B P --- 1 M5 ENG START L 221 C B P --- 3 B7 ENG IGN A 221 C B P --- 4 B5 THRUST REV AUTO STOW 1 222 C B P --- 4 B6 THRUST REV AUTO STOW 2 222 C B P --- 4 B7 THRUST REV 1 222 C B P --- 4 B8 THRUST REV 2 222 C B P --- 5 B1 ENG IGN B 311 For Aircraft 8043, 8046 thru 8049, 8051 thru 8057, 8060, 8063, 8065 thru 8069, 8071 thru 8094, 8096 thru 8100, 8102, and 8104 CB PANEL CB NO. NAME ZONE C B P --- 1 M3 ENG IGN B 221 C B P --- 1 M4 ENG START R 221 C B P --- 1 M5 ENG START L 221 C B P --- 3 B7 ENG IGN A 221
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 8 of 17 Jun 28/2012 CB PANEL ZONE NAMECB NO.
C B P --- 4 B5 THRUST REV AUTO STOW 1 222 C B P --- 4 B6 THRUST REV AUTO STOW 2 222 C B P --- 4 B7 THRUST REV 1 222 C B P --- 4 B8 THRUST REV 2 222 C B P --- 4 C6 ENG IGN A 222 C B P --- 5 B1 ENG IGN B 311 For all Aircraft
(3) Open the cargo-compartment door.
(4) Between FS559.00+80.00 and FS574.00, remove the applicable ceiling panels to get access to the generator power cables (Refer to AMM 25- - - 52- - - 01- - - 000- - - 801).
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 9 of 17 Jun 28/2012 B. Procedure NOTE: This procedure is applicable to the left and right sides. The procedure that follows is written for the left side. The differences are given.
NOTE: This procedure is applicable to the generator power cables that are identified as 1XA71A4AWHT / 1XA72A4BBLU / 1XA73A4CORN for the left side and 2XA71A4AWHT / 2XA72A4BBLU / 2XA73A4CORN for the right side.
Refer to Figure 1 .
(1) Between FS559.00+80.00 and FS559.00+96.00, and between stringers 2 and 3, do a visual inspection of the generator power cables for a damaged insulation sleeve.
(2) Between FS559.00+112.00 and FS574.00, and between stringers 2 and 3, do a visual inspection of the generator power cables for a damaged insulation sleeve.
(3) If the insulation sleeve of the generator power cables is damaged and the wire strands are not damaged, do a repair of the generator power cables as follows:
(a) Between FS574.00 and FS621.00, remove the applicable ceiling panels and sidewall lining panels to get access to the generator power cables (Refer to AMM 25- - - 52- - - 01- - - 000- - - 801 and AMM 25- - - 52- - - 01- - - 000- - - 802).
CAUTION: DO NOT PULL TOO HARD ON THE GENERATOR POWER CABLES. THIS CAN CAUSE DAMAGE TO THE INSULATION SLEEVE.
(b) Between FS559.00+80.00 and FS621.00, remove the generator power cables from the attachment points (standoffs, cable supports, cable ties) as necessary to loosen the generator power cables near the damaged area.
(c) Repair the damaged generator power cables with insulating tape (Refer to REO 601R- - - 24- - - 21- - - 004).
(d) Between FS559.00+80.00 and FS621.00, attach the generator power cables on the attachment points (standoffs, cable supports, cable ties) that were removed.
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 10 of 17 Jun 28/2012 CAUTION: DO NOT DO A PERMANENT REPAIR TO THE GENERATOR POWER
CABLES IF THE WIRE STRANDS OF THE GENERATOR POWER CABLES ARE DAMAGED. IF YOU DO, DAMAGE CAN OCCUR TO THE ELECTRICAL GENERATION SYSTEM.
(4) If the wire strands of the generator power cables are damaged, speak with a representative of Bombardier at the Bombardier Business Aircraft Customer Response Center (CRC) at phone number 514-855-2999 or 1- - - 866- - - 538- - - 1247 or via email at ac.yul@aero.bombardier.com for a disposition.
(5) If a support bracket is installed on the fuel tank support-brackets to hold the generator power cables, speak with a representative of Bombardier at the Bombardier Business Aircraft Customer Response Center (CRC) at phone number 514-855-2999 or 1- - - 866- - - 538- - - 1247 or via email at ac.yul@aero.bombardier .com for a disposition.
Refer to Figure 2 .
(6) Between FS559.00+80.00 and FS559.00+96.00, and between stringers 2 and 3, install the T eflon conduit (1) on the generator power cables as follows (Refer to ESPM 20- - - 13- - - 00):
NOTE: If an equivalent type of Teflon conduit was installed on the generator power cables before this service bulletin, it is not necessary to do this step.
(a) Cut the T eflon conduit (1) along its length.
(b) Wrap the T eflon conduit (1) around the generator power cables.
(c) Make sure that the T eflon conduit (1) has an overlap of 0.5 in. (1.3 cm) on the lower surface of the generator power cables.
(d) Attach the T eflon conduit (1) with two cable ties (2) to each end and two cable ties (2) approximately at an equal distance from each other .
(7) Between FS559.00+112.00 and FS574.00 and between stringers 2 and 3, install the T eflon conduit (1) on the generator power cables as follows (Refer to ESPM 20- - - 13- - - 00):
NOTE: If an equivalent type of the Teflon conduit was installed on the generator power cables before this service bulletin, it is not necessary to do this step.
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 11 of 17 Jun 28/2012
(a) Cut the T eflon conduit (1) along its length.
(b) Wrap the T eflon conduit (1) around the generator power cables.
(c) Make sure that the T eflon conduit (1) has an overlap of 0.5 in. (1.3 cm) on the lower surface of the generator power cables.
(d) Attach the T eflon conduit (1) with two cable ties (2) to each end and two cable ties (2) approximately at an equal distance from each other .
(8) Between FS559.00+80.00 and FS559.00+96.00, and between stringers 2 and 3, install the edging grommets (3) on the fuel tank support-brackets as follows:
(a) Clean the edges of the fuel tank support-brackets (Refer to SRM 51- - - 26- - - 00).
(b) Apply sealing compound on the edging grommets (3) and on the edges of the fuel tank support-brackets (Refer to SRM 51- - - 23- - - 00).
(c) Install the edging grommets (3) on the edges of the fuel tank support-brackets (Refer to SRM 51- - -22- - -38).
(9) Make sure that the overlap of the T eflon conduit (1) points in the direction of the edging grommets (3) on the fuel tank support-brackets.
(10) Between FS559.00+112.00 and FS574.00, and between stringers 2 and 3, install the edging grommets (3) on the fuel tank support-brackets as follows:
(a) Clean the edges of the fuel tank support-brackets (Refer to SRM 51- - - 26- - - 00).
(b) Apply sealing compound on the edging grommets (3) and on the edges of the fuel tank support-brackets (Refer to SRM 51- - - 23- - - 00).
(c) Install the edging grommets (3) on the edges of the fuel tank support-brackets (Refer to SRM 51- - -22- - -38).
(11) Make sure that the overlap of the conduit (1) points in the direction of the edging grommets (3) on the fuel tank support-brackets.
SERVICE BULLETIN 601R- - -24- - -131 SB 601R- - - 24- - - 131 Page 12 of 17 Jun 28/2012 C. 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:
For Aircraft 7075, 7136, 7140, 7152, 7176, 7180, 7351, 7730, 7755, and 7763 CB PANEL CB NO. NAME ZONE C B P --- 1 M2 ENG IGN A 221 C B P --- 1 M3 ENG IGN B 221 C B P --- 1 M4 ENG START R 221 C B P --- 1 M5 ENG START L 221 C B P --- 3 B7 ENG IGN A 221 C B P --- 4 B5 THRUST REV AUTO STOW 1 222 C B P --- 4 B6 THRUST REV AUTO STOW 2 222 C B P --- 4 B7 THRUST REV 1 222 C B P --- 4 B8 THRUST REV 2 222 C B P --- 5 B1 ENG IGN B 311 For Aircraft 8043, 8046 thru 8049, 8051 thru 8057, 8060, 8063, 8065 thru 8069, 8071 thru 8094, 8096 thru 8100, 8102, and 8104 CB PANEL CB NO. NAME ZONE C B P --- 1 M3 ENG IGN B 221 C B P --- 1 M4 ENG START R 221 C B P --- 1 M5 ENG START L 221 C B P --- 3 B7 ENG IGN A 221 C B P --- 4 B5 THRUST REV AUTO STOW 1 222 C B P --- 4 B6 THRUST REV AUTO STOW 2 222 C B P --- 4 B7 THRUST REV 1 222 C B P --- 4 B8 THRUST REV 2 222