# ACSS Service Bulletin 7517900-34-6041

Copy: No revision named ("U.S. DOT/FAA - Service Information - 4"), 38 pages: PDF https://openairdocs.org/files/sha256/cb/12/cb1249a5d500c2700501ca5cd8b5a49d0a0f7240bda96d2e4264c9a8c3ccb69f; text https://openairdocs.org/service-documents/acss/sb-7517900-34-6041/file/cb1249a5d500.md. Rights: © Aviation Communication & Surveillance Systems, LLC. Filed by the FAA in regulations.gov docket FAA-2010-1204; AD 2012-02-08 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [ACSS](https://openairdocs.org/service-documents/acss.md)
- Type: Service bulletin (Service Bulletin)
- Number: 7517900-34-6041
- Page: https://openairdocs.org/service-documents/acss/sb-7517900-34-6041

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

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Also cited in [1 proposed AD](https://openairdocs.org/service-documents/acss/sb-7517900-34-6041/proposed.md).

## Text (38 pages)

Rights: © Aviation Communication & Surveillance Systems, LLC. Filed by the FAA in regulations.gov docket FAA-2010-1204; AD 2012-02-08 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. This text is OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1 (OCR)

ACSS®
An hates comparations
Service Bulletin
Transmittal Information
ACSS Publication Number 8008231-001
ATA Service Bulletin 7517900-34-6041
NAVIGATION -
TRAFFIC ALERT AND COLLISION AVOIDANCE SYSTEM -
TCAS 2000 COMPUTER UNIT - Part No. 7517900-56101, -56102, -
56104, -56105, -56107 - Updates TCAS 2000, RT-951, Computer Unit to
Convert Part No. 7517900-56101, -56102, -56104, -56105, or -56107 to
Part No. 7517900-56108. Install New TCAS Operational Software, Part No.
9001049-005 to Incorporate Updates to Interference Limiting Functionality
With Altitude Correction.
EXPORT ADMINISTRATION REGULATIONS (EAR) NOTICE
This technical data is controlled under the Export Administration Regulations (EAR) ECCN 7E994 and may not be
exported to a Foreign Person, either in the U.S. or abroad, without the proper authorization of the U.S. Department of
Commerce.
LEGAL NOTICE
This document and the information disclosed herein are proprietary data of Aviation Communication and Surveillance
Systems, LLC. Neither this document nor the information contained herein shall be reproduced, used, or disclosed to
others without the written authorization of Aviation Communication and Surveillance Systems, LLC.
This document is being furnished in confidence by Aviation Communication and Surveillance Systems, LLC. The
information disclosed herein falls within exemption (b) (4), Freedom of Information Act, (5 USC 552), and the
prohibitions of the Disclosure of Confidential Information Generally (18 USC 1905).
Implementation of this software update described in this Service Bulletin involves changes to software. The software
required to effect this update is copyrighted by ACSS. License to use this software to perform the modifications set
forth in this Service Bulletin shall be granted by ACSS in accordance with terms and conditions to be entered into
between ACSS and the customer.
SUMMARY
This Service Bulletin gives instructions for the installation of new TCAS 2000 Product Software,
Part No. 9001049-005. Installation of this new Operational Software converts TCAS 2000,
RT-951, Computer Unit, Part No. 7517900-56101, -56102, -56104, -56105, or
-56107 to new Part No. 7517900-56108.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Not Ainue. Suel, 2 51027-4311
Printed in U.S.A  Page 1 of 38

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& Thaks Comparations  ACSS
Service Bulletin
SUMMARY (cont)
Refer to Section 1.C on Page 5 for a list of the changes that are a part of new TCAS Product
Software, Part No. 9001049-005.
NOTE: The work described in this Service Bulletin can be completed on board the aircraft or
on a TCAS 2000 Manual Test Station (MTS).
NOTE: Refer to Section 2.C, Table 4 on Page 13 for parts availability.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLO
19810 North 7t Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A  Page 2 of 38

### Page 3 (OCR)

ACSS®  a hales Companions
Service Bulletin
REVISION HISTORY
Revisions to ATA Service Bulletin No. 7517900-34-6041 (ACSS Pub. No. 8008231-001) are
summarized in Table 2 below.
Table 1. Service Bulletin Revisions
Revision  Date of Release
Initial Release  May 24, 2010
Revision 01  October 15, 2010
Revision 02  June 28, 2011
NOTE: This Service Bulletin obeys ASD-STE100 Simplified Technical English guidelines and
ATA iSpec2200 specifications, wherever practicable.
Table 2. Revisions Summary
Revision  Page  Change Made
01  VAR  Made minor changes to comply with current ACSS documentation
guidelines.
VAR  Modified text to make sure a Service Center with a TCAS 2000
Manual Test Station can install software. Per ECR 012661.
VAR  Removed Section L, "Documents Necessary to Complete This
Bulletini This information is available in other sections of the Service
Bulletin or in the "Testing and Fault Isolation" section of the
Component Maintenance Manual (CMM). Removed other references
to test procedures/software that is included in the CMM. Referred
operators to the CMM. Per ECR 012689.
13  Updated Part Availability information.
28  Removed note. All new ACSS labels are made with white polyester
material.
02  VAR  Added Part No. 7517900-56107 to the list of effective part numbers.
Updated new part numbers as follows.
Was: Part No. 7517900-56107
Now: New Part No. 7517900-56108.
Updated new OP SW Part No. from 9001049-004 to Part No.
9001049-005.
5, 6  Updated Section 1.A for effectivity, and Sections 1.C to include
information about the altitude input.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7"h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 3 of 38

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An hates comparations  ACSS®
Service Bulletin
Revision  Page  Change Made
02 (Cont)  7  Updated Section 1.F for effectivity.
9, 12  Updated Section 2, Material Information, and added new Cost and
Availability and Industry Support Information.
13  Updated the Table 4 to include the new label for -56108.
24  Changed Section 3.G for Identification Labels to include instructions
for the new overlay label.
29  Updated Table 7 to include information for -56108.
35,36  Replaced existing Figures for the Software Label and Overlay Label
with new Figure 9 and Figure 10.
37, 38  Updated Figure 11 and Figure 12 Product ID Labels information.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 4 of 38

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ACSS®
& Thales Company tons
Service Bulletin
1. PLANNING INFORMATION
A. Effectivity
This Service Bulletin is applicable to TCAS 2000, RT-951, Computer Unit (CU), Part
No. 7517900-56101, -56102, -56104, -56105, and -56107.
B. Concurrent Requirements
If a TCAS 2000 Manual Test Station (MTS) is used to load the operational software,
one of the Service Bulletins that follow must be done before or in conjunction with this
Bulletin:
ATE Bulletin Pub. No. 8008085-001 (ATA Service Bulletin No. 7517900-34-6038)
for a PC with Windows NT operating system
ATE Bulletin Pub. No. 8008370-001 (ATA Service Bulletin No. 7517900-34-6044)
for a PC with Windows XP operating system.
C. Reason
New Operational Software, Part No. 9001049-005 incorporates updates to the
Interference Limiting functionality. These updates improve tracking of nearby Mode-S
intruders in high density environments. Customers upgrading from older software
versions of TCAS will also gain the benefit of minor changes that have been
incorporated into later software releases. These changes include minor improvements
to the internal built-in-test operation to reduce nuisance faults and improve overall
reliability as well as minor enhancements to input/output signal processing to improve
interoperability with other avionic systems.
This update also includes a correction to an issue on some installations whereby the
TCAS does not go into STBY mode (TCAS OFF) when the active transponder senses
an altitude mis-compare between 2 Gillham altitude inputs or other possible air data
failures. This potential issue is dependent on the altitude interface to the transponder
and the transponder used. The following helps describe systems with or without the
potential issue:
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7*h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 5 of 38

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ACSS®
A Trices Comparions
Service Bulletin
Altitude interface to the  Potential
Mode S Transponder  transponder  issue
ACSS Part No. 7517800 with any  Gillham or ARINC 429  No
dash number
ACSS Part No. 7519350 with any  Gillham or ARINC 429  No
dash number
ACSS Part No. 7510700-850, -951,  ARINC 429  No
-952, -953
ACSS Part No 7510700-850, -951,  Gillham  Yes
-952, -953
Other Manufacturer's Mode S  Check with test shown  Any
Transponders  below.
TEST: To check for possible system issue, check for system response while
powered up and valid, then simulate invalid primary altitude to the active
transponder by pulling that altitude source's circuit breaker. The TCAS
display should change to TCAS OFF or TCAS FAIL (the exact annunciation
is dependent on the type of transponder and display involved - either
indication is acceptable as it indicates that the TCAS is no longer functional
in this situation).
This Service Bulletin updates TCAS 2000, RT-951 CU from Part No. 7517900-56101, -
56102, -56104, -56105, or -56107 to Part No. 7517900-56108.
D. Description
This Service Bulletin gives instructions for installing new Operational Software on
board the aircraft or by final Acceptance Test on a TCAS Manual Test Station (MTS).
This Service Bulletin also includes instructions for installing a new software tear-off
label on the front of the unit to identify the new dash number. The bulletin also gives
instructions for changing Honeywell labels to ACSS labels, if necessary.
NOTE: Some units have Product Identification labels made of metalized polyester
material. New tear-off labels are all made with white polyester. A mixture of
materials on an updated Product Identification Label is permitted.
When this software upgrade is done at an ACSS-Authorized Service Center, new
ACSS labels can be installed, if necessary.
E. Compliance
This Service Bulletin is highly recommended because it has an effect on aircraft
safety. This Service Bulletin has been written in support of a potential FAA
Airworthiness Directive. Do this conversion as soon as possible. The FAA
Airworthiness Directive will identify the compliance schedule.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A  Page 6 of 38

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ACSS®
& Thales Company tons
Service Bulletin
F. Approval / Authorization Granted
The content of this Service Bulletin is reviewed and approved by the FAA.
This Service Bulletin includes the information that follows:
(1) Gives TCAS 2000 unit modification instructions from the manufacturer.
Gives authorization for the installation and operation of the modified TCAS 2000
unit on board the aircraft as identified below:
Aircraft Previously Equipped With...  New Approved Part Nos.
7517900-56101, or
7517900-56102, or
7517900-56104, or  to  7517900-56108
7517900-56105 or
7517900-56107
After completing this FAA-approved modification, it is the responsibility of the aircraft
operator to get "Return to Service" authorization, if necessary, from the applicable
regulatory authorities.
G. Manpower
When the modification described in this Service Bulletin is done on board the aircraft,
approximately 0.5 work hours are necessary to complete the work.
Approximately 0.5 work hours are necessary when a TCAS 2000 Manual Test Station
(MTS) is used to do the modification. Approximately 1.0 work-hour is necessary to
complete Final Test of the unit using manual test procedures.
H. Weight and Balance
This modification does not change weight and balance.
1. Electrical Load Data
This modification does not change electrical load data.
J. Software Accomplishment Summary
Software is changed by this conversion/modification.
Work activities and procedures described in this software update meet the
requirements of RTCA Document DO-178B, Software Considerations in Airborne
Systems and Equipment Certification.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7*h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 7 of 38

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ACSS®
A hates Companations
Service Bulletin
K. References
(1) Reference Documents
The document identified in Table 3 is for reference only and is not necessary to
implement this Service Bulletin. Subsequent revisions to this document are
permitted.
Table 3. Reference Documents
Document Number  Revision  Title
FAA Best Practices  22 Dec. 2000  Scrap or Salvageable Parts and
Document  Materials
(2) Related Service Bulletins
None
L. Other Publications Affected
As a consequence of this Service Bulletin, ACSS will revise the documents in the list
that follows:
TCAS 2000 Computer Unit Component Maintenance Manual (CMM), ACSS Pub
No. A09-3841-004 (ATA 34-43-13)
• TCAS 2000 Computer Unit, System Description and Installation Manual (SDIM),
ACSS Pub. No. A15-3841-009 (ATA 34-43-14).
The Airworthiness Analysis is not changed.
The Testing is not changed.
M. Interchangeability of Parts
This is not applicable to the changes outlined in the Service Bulletin.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A  Page 8 of 38

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ACSS®
a hates Company ons
Service Bulletin
2.  MATERIAL INFORMATION
A. Cost and Availability
(1)  Pricing and Availability
Equipment operators  Non-Authorized Service  Availability
Centers
Free of Charge (FOC)  $1,000 USD (2011)  30 days after receipt of
order
NOTE: For additional pricing information, refer to Section 2.B, Industry Support
Information, on Page 12.
(2) Placing an Order
Use a standard Purchase Order (PO) form, or complete the ACSS Service
Bulletin Materials Order Form (OA-009) shown on Page 11. To expedite your A
Purchase Order Number
Reference to this Service Bulletin:
ATA Service Bulletin No. 7517900-34-6041 (ACSS Pub No. 8008231-001)
..  Aircraft Type
Unit Original Part Number
Unit Serial Number(s)
Price of modification for each unit
Part Number(s) being ordered (Refer to Table 4 on Page 13 for a list of part
numbers and order only those parts that are applicable to the unit to be
updated.)
Quantity ordered
• Bill-to address/instructions
Ship-to address/instructions
Freight carrier Account number and special shipping instructions
When ordering software and/or parts, send Purchase Orders to:
Aviation Communication and Surveillance Systems (ACSS)
Attn: Customer Order Administration
19810 N. 7h Ave
Phoenix, AZ 85027-4741 USA
Phone: (623) 445-7040
Fax: (623) 445-7004
or e-mail: acss.orderadmin@L-3com.com
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 9 of 38

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ACSS®  a hales Comparations
Service Bulletin
NOTE:  All orders are subject to a standard lead time of 2 weeks to give
sufficient time for documentation validation and order preparation.
When sending units to an ACSS Service Center, send Purchase Orders to:
Aviation Communication and Surveillance Systems (ACSS)
Attn: Customer Order Administration
19810 N. 7th Ave
Phoenix, AZ 85027-4741 USA
Phone: (623) 445-7030
Fax: (623) 445-7002
or e-mail: acss.phxrepair@L-3com.com
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 10 of 38

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ACSS®
& lates comparions
Service Bulletin
ACSS SERVICE BULLETIN
MATERIALS ORDER FORM
To secure the rights to use ACSS software, ACSS requires the completion of a Software License Agreement and Appendix. If a
current Software License Agreement exists with ACSS, the customer is only required to sign an Appendix to the Agreement for
the software being ordered. Based on the information in this order form, ACSS Order Administration will complete the Appendix
and/or the Software License Agreement and forward it to the customer for signatures.
The Software License Agreement, or Appendix, must be signed and received by ACSS prior to shipment of the order.
ALL of the following information MUST be completed for ACSS to quickly and efficiently process this software order.
Customer Name  * Customer Purchase Order Number  Date
Unit Original Part Number  Customer Contact Name  Customer Contact Email Address
A/C Type  Applicable ACSS Service Bulletin Pub. No.  Price of Modification for each Unit
Unit Serial Number(s) Attach additional sheets as necessary to list all of the serial numbers being updated by this software order.
* This completed form can be used as the formal Purchase Order (PO) or can be used as an information sheet attached to the PO.
PARTS BEING ORDERED (as listed in the applicable Service Bulletin section, 'Material Necessary for Each Component')
Part Number  Description  Quantity
NOTE: Each Compact Flash Card/Diskette can perform an unlimited number of upgrades. Please order a minimum quantity to meet your needs.
BILL TO ADDRESS  SHIP TO ADDRESS
Freight Carrier and Account Number  Special Shipping Instructions
SUBMIT THIS ORDER TO: Aviation Communication and Surveillance Systems (ACSS), LLC
Attn: Customer Order Administration
19810 North 7"h Avenue
Phoenix, AZ 85027-4741, USA
Phone: 623.445.7040
Fax: 623.445.7004
Email: acss.orderadmin@L-3com.com
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLO
19810 North 7th Avenue, Phoenix, AZ 85027-474
Printed in U.S.A.  Page 11 of 38

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ACSS®
An has comparations
Service Bulletin
B. Industry Support Information
ACSS will not reimburse labor hours for integration of this conversion/modification.
ACSS's on-line electronic system gives customers access to a variety of
product-related publications. Service Bulletins and Technical Newsletters are available
at the ACSS Customer Services web site. Go to:
http://www.acsscustomerservices.com/CustomerServices.
(1)  Modification at an ACSS-Authorized Repair Station:
This Service Bulletin will be done at no cost (FOC) to the Operator.
Pricing for this Service Bulletin is applicable to those customers who use on-
board data loading or their own shop procedures to complete this upgrade.
If this upgrade is not installed on the aircraft, a shop Bench Test Fee is
applicable for all units sent to ACSS for this Software upgrade.
(2) Modification by an Equipment Operator:
For equipment under warranty, ACSS will reimburse the operator for the
cost of parts and labor needed to complete this Service Bulletin upon
receipt of a valid warranty claim and subject to the Terms and Conditions of
the applicable Product Support Agreement.
or
For equipment out of warranty, the Operator is responsible for the cost of
parts, and labor hours will not be reimbursed. For Cost and Availability,
refer to Section 2.A on Page 9.
(3) Modification at a Non-Authorized Service Center:
Non-Authorized Service Centers are responsible for the entire cost of the Service
Bulletin. For Cost and Availability, refer to Section 2.A on Page 9.
NOTE: 1.  A shop Bench Test Fee is applicable for those units sent to ACSS for
this Software upgrade and will be based on current catalog pricing.
NOTE: 2.  Other repairs will be quoted separately. Please speak or write to an
ACSS Customer Order Administrator and request scheduling information
before sending a unit for repair or modification.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLO
19810 North 7h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 12 of 38

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ACSS®  An hates Comparations
Service Bulletin
C. Material Necessary for Each Component
(1) Material to be Purchased
The items identified in Table 4 below are necessary to complete this Service
Bulletin.
Table 4. Material to Be Purchased
New  Old  Qty.  Instructions/  Parts
Part Number  Name  Part Number  Disposition  Availability
9001049-005  New TCAS 2000  See Table 7 on  1  1, 2, 3  September
Operational Software  Page 29  2011
(3 disks)
ACSS Modification Labels, if necessary
7000037-907  Product Signature Plate  (for 4MCU units)  7000037-207  1, 2, 3, 4  Immediately  Available
ACSS Software Overlay Label
9000264-524  TCAS 2000 Overlay Label  N/A  A/N  1, 2, 3, 4  Available
(for 4MCU units)  Immediately
A/N = As Necessary
N/A = Not Applicable
INSTRUCTIONS/DISPOSITION
1. For correct disposal of used parts, refer to FAA Best Practices document, Scrap or Salvageable
Parts and Materials, local regulatory agency, or local Repair Station policy.
2. Make sure quantities are correct and verifiable.
3. Include a full list of serial numbers to make sure you receive the correct identification plates.
4. Choose this item only when this Service Bulletin is done onboard the aircraft.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 13 of 38

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A hares Company  ACSS®
Service Bulletin
(2) Material Supplied by the Operator
WARNING
BEFORE USING A MATERIAL, REFER TO THE
MANUFACTURER'S MATERIAL SAFETY DATA SHEETS FOR
SAFETY INFORMATION. SOME MATERIALS CAN BE
DANGEROUS.
DO NOT USE MATERIALS THAT AREANERALS THAT ARE NOT  CAUTION  MATERIALS SPECIFIED BY ACSS. MATERIALS THAT ARE NOT
EQUIVALENT CAN CAUSE DAMAGE TO THE EQUIPMENT AND
CAN VOID ANY WARRANTY.
The items identified in Table 5 below are commercially available. Do not order
them as part of this Service Bulletin. Equivalent alternatives are permitted for
items in the table.
Table 5. Operator Supplied Material
Part/Specification Number  Qty.  Keyword
HAZARD CODE 130D  A/N  Solvent, isopropyl alcohol (99%) - Optional
source
HAZARD CODE 203B  A/N  Ink, black marking, dye-based marker. No.
33003 Marker, Action, 33 Fine.
ITW Dymon, Olathe KS (CAGE 1QZC4)
A/N = As Necessary
D. Material Necessary for Each Spare
Same as Section 2.C, Material Necessary for Each Component.
E. Re-identified Parts
This reference is not applicable.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 14 of 38

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ACSS®
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Service Bulletin
F. Tooling - Price and Availability
The items identified in Table 6 below are necessary to do the procedures in this
Bulletin. Equivalent alternatives are permitted for items in the table. If the work
described in this Service Bulletin is done on a TCAS 2000 Manual Test Station (MTS),
also refer to the TCAS 2000 Computer Unit Component Maintenance Manual (CMM),
ACSS Pub No. A09-3841-004 (ATA 34-43-13).
Table 6. Tooling
Product Software Loading Onboard the Aircraft
Part/Specification Number  Qty.  Description
Various (Refer to Note 2)  1  ARINC 615 Portable Data Loader (PDL)
200F-00083  1  TCAS 2000 SW Validation Cable Adapter
Method 3 -Standalone PC With TCAS Software Part Number Tool
Part/Specification Number  Qty.  Description
Operator-supplied  1  Stand-alone PC (Windows based)
9000727-002  1  TCAS Software Part Number Tool
RS-232  1  PC Interface Cable
OR
Method 4 - TCAS Software Verification Fixture
Part/Specification Number  Qty.  Description
T326948-901  1  Software Verification Fixture
(Refer to Note 1 below)
200F-00084  1  Adapter Cable
OR
Method 5 - Remote Connected VSI/TRA
Part/Specification Number  Qty.  Description
200F-00083  1  TCAS 2000 SW Validation Cable Adapter
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 15 of 38

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ACSS®  a hales companions
Service Bulletin
NOTES:
1. The Software Verification Fixture is available from ACSS. Speak or write to an ACSS Customer
Order Administrator for more information. Refer to Section 2.A(2) on Page 9.
2. The four portable data loaders (PDL) in the list below were tested and found to be satisfactory
for installation of TCAS operational software onboard the aircraft or on a bench system:
3.5" Floppy Drive-based Systems:
• DEMO Systems - Part No. 30100 (Revision A and later versions)
• Teledyne - Part No. 2230915-01-D
• SFIM - Part No. YV68A110
Multiple Data Distribution Systems:
• Teledyne Controls - Portable Maintenance Access Terminal 2000® (PMAT 2000®)
Part No. 80000-05
Other part numbers from these suppliers and ARINC 615 data loaders from other
manufacturers can complete the task successfully but ACSS cannot vouch for their usability.
3. Customers can also use an Airborne Data Loader (ADL) or Maintenance Access Terminal
(MAT) to complete this upgrade but it is their responsibility to make sure that the load works
correctly with these systems
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7"h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 16 of 38

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ACSS®
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Service Bulletin
3. ACCOMPLISHMENT INSTRUCTIONS
A. General Information
CAUTION
ALL DISASSEMBLY AND MODIFICATION PROCEDURES MUST
BE COMPLETED AT AN ANTISTATIC WORKSTATION. REFER
TO ESTABLISHED ANTISTATIC PROCEDURES.
CAUTION
THIS EQUIPMENT CONTAINS MOISTURE SENSITIVE PARTS.
SPECIAL HANDLING IS NECESSARY.
NOTE: 1. The Paragraph, Item, Table, and/or Figure numbers given in this Service
Bulletin can be found in one or other of the two manuals in the list that follows:
TCAS 2000 Computer Unit, System Description and Installation Manual
(SDIM), ACSS Pub. No. A15-3841-009 (ATA 34-43-14).
TCAS 2000 Computer Unit Component and Maintenance Manual (CMM),
ACSS Pub. No. A09-3841-004 (ATA 34-43-13).
NOTE: 2. Before doing the work described in this Service Bulletin, make sure you can
read the TCAS 2000 RT-951 CU software part number from a maintenance
connection.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7*h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 17 of 38

### Page 18 (OCR)

an hates comparations  ACSS
Service Bulletin
B. Preparation
(1) Choose an implementation method
Before continuing with the software upgrade, refer to the Decision Chart in
Figure 1 on Page 30 and choose a method for implementing the TCAS Software
Upgrade.
(2)  Examine the current TCAS Product Software Part Number
Before starting this upgrade, use one of the Methods below to make sure you
can read the current TCAS Product Software part number and that it is correct.
For a list of current software part number(s), refer to Table 7 on Page 29.
CAUTION
THE AIRCRAFT MUST HAVE GEAR DOWN AND "WEIGHT ON
WHEELS" DURING VERIFICATION OF THE PRODUCT SOFTWARE
PART NUMBER OR WHILE REPROGRAMMING THE TCAS
COMPUTER UNIT ONBOARD THE AIRCRAFT.
CAUTION
DO NOT START A TCAS SYSTEM POWER CYCLE WHILE YOU ARE
REPROGRAMMING THE COMPUTER UNIT. THIS CAN CAUSE A
PROGRAMMING FAILURE.
Method 1
Installed VSI/TRA display or EFIS System With Expanded Test Capability.
NOTE: Access to extended test mode is available only on the ground with the
transponder in standby mode.
The aircraft configuration must include a cockpit-initiated self-test that starts
when the operator pushes and holds the TCAS TEST switch for 8-seconds.
a)  Use the extended test mode menu to show the System Status Page code
0000. Refer to the FAULT ISOLATION section of the TCAS 2000 System
Description and Installation Manual, ACSS Pub. No. A15-3841-009
(ATA 34-43-14).
Examine the displayed software part number to make sure it is correct.
Refer to Table 7 on Page 29 for a list of the before and after part numbers.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7th Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 18 of 38

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ACSS®
a Thales Company on  ompan
Service Bulletin
Method 2
CFDS (Central Fault Display System) or CMC (Central Maintenance Computer)
type maintenance programs.
NOTE: Fault data is available only when the aircraft is on the ground.
If the aircraft is equipped with an OMS (Onboard Maintenance System),
you can use the aircraft's CFDS or CMC to display fault information,
including the current version of the operating software. Use the applicable
aircraft AMM (Aircraft Maintenance Manual) and refer to the OMS program.
b)  Make sure the displayed software part number is correct. Refer to Table 7
on Page 29 for a list of the before and after part numbers.
Method 3
Stand-alone PC with an installed TCAS Software Part Number Tool, Part No.
9000727-002 and an RS-232 cable connection.
a)  Procure TCAS Software Part Number Tool, Part No. 9000727-002. Refer to
Table 6 on Page 15.
b)  Procure or assemble an RS-232 cable. See Figure 3 on Page 31.
c)  Stop the PC.
d)  Remove power from the TCAS 2000 CU.
e)  Connect the RS-232 cable from the PC (9-pin connector) to the J1 front
connector on the TCAS 2000 CU.
Apply power to the TCAS 2000 CU.
g)  Start the PC and Microsoft Windows operation.
h)  On the PC, go to Start => Programs => TCAS SW PN Tool and double
click "TCAS Part Number". See Figure 2 on Page 31.
i)  Examine the TCAS software part number to make sure it is correct. Refer to
Table 7 on Page 29 for a list of the before and after part numbers.
NOTE:  The PC S/ P/N Tool can show an "@" symbol at the end of the TCAS
software part number.
Stop the PC.
k)  Remove power from the TCAS 2000 CU.
Disconnect the RS-232 cable from the J1 front connector on TCAS 2000
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 19 of 38

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ACSS®
A hales Company ions
Service Bulletin
Method 4
TCAS Software Verification Fixture, Part No. T326948-901 and adapter cable,
Part No. 200F-00084.
For this verification option, the TCAS 2000 CU must be energized by 115 Vac
aircraft power.
a)  Procure Software Verification Fixture, Part No. T326948-901, with related
adapter cable, Part No. 200F-00084. See Figure 4 on Page 32.
Remove power to the TCAS 2000 CU.
Connect the adapter cable from the TCAS 2000 CU to the Software
Verification Fixture. See Figure 4 on Page 32 for correct connection.
d)  Apply power to the TCAS 2000 CU.
Push the button to start the Software Verification Fixture. Make sure that
you can read the software part number in the 15-digit display and that the
number agrees with the applicable part number in Table 7 on Page 29.
Do a TCAS system self-test and make sure that the "TCAS TEST PASS"
message comes on.
NOTE: A "TCAS TEST FAIL" message will show if power is removed from an
LRU that supplies inputs to the TCAS 2000 CU.
If the software part number does not show on the display, repeat Steps b)
thru f) one more time. If the Part Number does not show again, use an
alternative Software Verification Method from this section.
Method 5
Software Verification with a remote VSI/TRA display only.
On some aircraft, you can use a remotely-connected VSI/TRA, Part No.
4067241-843, -844, -845, -860, -861, -862, -880, -881, -882, -890, -891, or -892,
to do a check of the software during extended test mode. Adapter cable, Part No.
200F-00083, connects the VSI/TRA to the J1 connector on the TCAS 2000 CU.
See Figure 5 on Page 32.
NOTES:
1. The external VSI method will not work if pin RMP 12C (Honeywell BCA
EFIS output format) is grounded as part of the aircraft installation.
2. The specified aircraft configuration must include a cockpit-initiated
self-test that starts when you push the TCAS switch and hold it for 8
seconds.
3. A CMC/CFDS-initiated self-test does not let the self-test discrete stay
grounded for 8 seconds. Thus, you cannot start extended self-test from
these devices. Extended self-test is available only with some approved
TCAS control panels.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7th Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 20 of 38

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ACSS®
a hales Companions
Service Bulletin
a)  Push and hold the self-test button on the controller for a minimum of 8
seconds.
b)  Make sure the software part number is correct. Refer to Table 7 on Page
29 for a list of correct part numbers.
Method 6
(Service Center only) An upgraded TCAS 2000 Manual Test Station with the
correct Manufacturing Test Software installed.
Refer to the TESTING AND FAULT ISOLATION section of TCAS 2000 Computer
Unit Component Maintenance Manual (CMM), ACSS Pub. No. A09-3841-004
(ATA 34-43-13) for test procedure information.
C. Disassembly
No disassembly necessary.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7"h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 21 of 38

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ACSS®
& Tales Company ens
Service Bulletin
D. Modification Procedures - Onboard the Aircraft or on a Bench System
The procedure that follows uses an ARINC 615 Portable Data Loader (PDL) installed
on the Aircraft or Bench System uploads new Product Software, Part No. 9001049-005
NOTE: Before doing the work in this Service Bulletin, make sure you can read the
new software part number installed in the TCAS 2000 CU from a
maintenance connection.
(1) Procure an ARINC 615 (PDL) and the applicable interface cable. Refer to Table
6, Tooling, on Page 15 for information on recommended PDLs.
(2) Procure TCAS Product Software, Part No. 9001049-005.
(3) Make sure that the system inputs for AIR/GROUND (RMP-5K) and
GEAR UP/DOWN (RMP-13F) are grounded.
(4) Stop the PDL and remove power from the TCAS 2000 CU.
(5) Connect the cable from the PDL to the J1 front connector on the TCAS 2000 CU.
(6) Apply power to the TCAS 2000 CU.
(7) Start the PDL.
(8) Put Product Software Disk 1 into the PDL or refer to and use the applicable
instructions on the PDL.
(9) When the PDL shows that the upload is successful, remove Disk 1 and repeat
Step (8) for Disks 2 and Disk 3.
NOTE: If the upload is not successful, contact the ACSS Customer Response
Center (CRC) at +1 (623) 445-7070 and select Option 3.
(10) Wait a minimum of 20 seconds after Disk 3 upload is complete.
(11) Stop the PDL, remove power from the TCAS 2000 CU, and disconnect the
interface cable.
(12) Complete a self-test to make sure the TCAS system is fully operational.
a)  Apply power to the TCAS 2000 CU.
Push the "Push to Test" button on the front panel.
The green LED indicator on the front panel illuminates at the end of the test
cycle (approximately 8 seconds) to show that the TCAS 2000 CU is
functional.
NOTE:  If a "TCAS TEST FAIL" message comes on, do a check to make sure all
LRUs that supply inputs to the TCAS 2000 CU are powered on.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7*h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 22 of 38

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ACSS®
& hales Compang ions
Service Bulletin
E. Return to Service
Complete a Return-to-Service test to make sure all system parameters are fully
functional. Use the approved methods found in the TCAS 2000 System Description
and Installation Manual (SDIM), ACSS Pub. No. A15-3841-009 (ATA 34-43-14), or in
the applicable aircraft maintenance manual (AMM), or use the system self-test
procedure that follows:
(1) Short Test Mode
a)  Push and hold the TEST button/switch on the ATC/TCAS controller to start
the test.
b)  When the test mode becomes active, the spoken words "TCAS TEST" are
transmitted one time and the TCAS test pattern, RA indications, and a
"TCAS TEST" message will show on the applicable displays).
c)  When the test is complete (approximately 8 seconds), the TCAS system
transmits the spoken words "TCAS TEST PASS" one time and removes the
TCAS test pattern from the display(s).
NOTE:  If the test is not successful, the spoken words "TCAS TEST FAIL" are
transmitted one time and the "TCAS FAIL" message shows on the
applicable display. Refer to the TCAS 2000 SDIM and complete a TCAS
Computer self-test to identify which LRU or subsystem is not operating
(2)  Software Part Number Verification
Use the same Method you used in Section 3.B on Page 18 to make sure the new
displayed Operational Software Part Number is 3472-LTZ-200-05.
F. Assembly
No assembly is necessary.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7hh Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 23 of 38

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A hales companions  ACSS®
Service Bulletin
G. Identification Label Update - On Board the Aircraft or On a Bench System
WARNING
WHEN HANDLING SOLVENTS, MAKE SURE THERE IS
SUFFICIENT VENTILATION IN THE WORK AREA. USE
APPLICABLE PRECAUTIONS TO PREVENT INHALATION OF
VAPORS AND EXPOSURE OF FUMES TO FLAME.
After you are sure that installation of the new product software was successful, use the
applicable procedure below to update the identification label(s) on the TCAS 2000 CU.
Refer to Table 4 on Page 13 for a list of applicable labels.
(1) Examine the Product Signature Plate on the front of the unit at the top center.
Figure 6 on Page 33 shows label locations on a TCAS 2000 front panel.
• When the manufacturer's name on the label is "HONEYWELL", go to Step
3.G(2) below for more instructions. See Figure 7 on Page 34 for correct
identification.
• When the manufacturer's name on the label is "ACSS", go to Step 3.G(3) on
Page 26, for more inspection instructions.
(2) HONEYWELL LABELED UNITS ONLY
a)  If necessary, replace the Product Signature Plate
1) Identify the Honeywell Product Signature Plate. See Figure 7 on
Page 34.
2) Procure new ACSS Product Signature Plate, Part Number
7000037-907. See Figure 8 on Page 34.
3) Use a utility knife to carefully remove the obsolete Product Signature
Plate but do not discard.
4) Clean the area with isopropyl alcohol.
5) When the area is dry, install the new ACSS Product Signature Plate in
the same location as the plate removed in Step 3) above.
6) Keep the plate you removed and refer to local repair station policy for
correct disposal instructions.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 24 of 38

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ACSS®
a haks company ions
Service Bulletin
b)  Install the Product Identification Overlay Label
1) Procure ACSS Product Identification Overlay Label, Part No.
9000264-524 (RT-951 4MCU). See Figure 10 on Page 36.
2) Examine the area of the new label that usually includes the serial
number, weight, and inspection information.
3) Carefully pick up a corner of the cutout and remove it from the label
backing. Discard the cutout. See Figure 10 on Page 36.
NOTE: Before installing the new label, do a visual check of the label on
the unit to make sure that you can read the serial number, weight,
date and inspector number information after the new label is
installed and that no part of the new label will obscure this data.
4) Use the steps that follow to prepare the surface for installation of the
new label:
(a) If other overlay labels were added to update the obsolete label,
use a sharp utility knife or razor blade to carefully remove the
superfluous layers. See Figure 9 on Page 35 for possible
locations.
(b)  Carefully clean the surface of the Identification Label with
isopropyl alcohol to remove dirt and all remaining adhesive.
(c) Give the surface area sufficient time to dry.
5) Remove the new label from its backing.
6) Carefully install the new label on top of the Honeywell Label. Make sure
that the location of the cutout lets you read the serial number, weight,
date and inspector number information.
NOTE:  Do not put a mark on or conceal the Mod Letters on the new SW Mod
status table.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7th Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 25 of 38

### Page 26 (OCR)

ACSS®
A Thales compang tons
Service Bulletin
(3) ACSS LABELED UNITS ONLY
a)  Examine the Product Identification Label and do one of the steps that
1) If the label is a rebranded Honeywell/ACSS label (i.e., an original
Honeywell label with an ACSS logo overlay), go to Step 3.G(2)b) on
Page 25 to change the Product Identification Overlay Label only. See
Figure 9 on Page 35 for correct identification of a rebranded Label with
an ACSS Logo Overlay.
2) If the label is an ACSS-only label, continue to Step b) below. See
Figure 11 on Page 37 and Figure 12 on Page 38 for examples of ACSS
Product Identification Labels.
b)  Procure new preprinted Product Identification Overlay Label, Part No.
9000264-524 (-56108). See Figure 10 on Page 36 for correct identification.
NOTE: You will only need to use the software tear-off part of the label.
NOTE: Some units have Product Identification labels made of metalized
polyester material. New tear-off labels are all made with white
polyester. A mixture of materials on an updated Product
Identification Label is permitted.
Make sure that the new label shows the new software number "-56108" and
TSO designation, TSO C119b.
Carefully remove only the bottom (software) part of the existing LRU
Product Identification Label. (Do not discard.)
Carefully clean the LRU software label area with isopropyl alcohol and give
the surface sufficient time to dry.
Remove only the software part of the new Product Identification Overlay
Label from its backing. Discard the top part of the label. See Figure 10 on
Page 36.
Install the new software part of the Product Identification Overlay Label in
the same location as the label you removed.
h)  On the top part of the Product Identification label, find the TSO information.
Make sure TSO C119b is visible. Use an indelible black ink marker to fully
conceal all other TSO, JTSO, or ETSO designations. See Figure 11 on
Page 37 and Figure 12 (4MCU) on Page 38.
i)  Keep the label you removed and refer to local repair station policy for
correct disposal procedures.
NOTE:  Do not put a mark on or conceal the Mod Letters on the new SW Mod
status table.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7th Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 26 of 38

### Page 27 (OCR)

ACSS®
an hales comparts
Service Bulletin
H. Modification Procedures - With a TCAS 2000 MTS at a Service Center
A Service Center that has a TCAS 2000 Manual Test Station (MTS) can use the
instructions that follow to install the new Product Software:
Do a Final Test to make sure all system parameters are fully functional. Refer to
the TESTING AND FAULT ISOLATION section of TCAS 2000 Computer Unit
Component Maintenance Manual (CMM), ACSS Pub. No. A09-3841-004 (ATA
No. 34-43-13) for test procedure information.
During functional testing, use the procedures and instructions in Appendix A of
the Integrated Test Specification, Part No. IT7517900, to install Product
Software, Part No. 9001049-005.
(3) After software loading is complete, use the steps that follow to make sure that the
new software Part Number installed correctly.
a) Click on Applications to pull down the menu.
b) Choose Software P/N.
c)  Make sure that the new displayed Operational Software Part Number is
3472-LTZ-200-05.
d)  Click Exit to exit the application.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7th Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 27 of 38

### Page 28 (OCR)

ACSS®  A Thales compaing tons
Service Bulletin
1. Identification Label Update at an Authorized Service Center
WARNING
WHEN HANDLING SOLVENTS, MAKE SURE THERE IS
SUFFICIENT VENTILATION IN THE WORK AREA. USE
APPLICABLE PRECAUTIONS TO PREVENT INHALATION OF
VAPORS AND EXPOSURE OF FUMES TO FLAME.
If the work described in this Service Bulletin is done at an Authorized Service Center,
the full Product Identification Label can be replaced to show the new part number.
NOTE: Full Product Identification Labels can only be installed at an ACSS-
Authorized Service Center. All other Service Centers must obey the
instructions in Section 3.G (Identification Label Update - On Board the
Aircraft) on Page 24 to update existing Product Identification Labels.
Identify and examine the Identification Labels on the front of the TCAS 2000 CU.
Choose one of the steps below to replace the Product Signature Plate (if necessary)
and the Product Identification Label.
If the manufacturer's name on Product Signature Plate is "Honeywell," use
ACSS Pub. No. 8004461-001 (ATA Service Bulletin No. 7517900-34-0007) to
replace the Product Signature Plate and the entire Product Identification Label
with the applicable ACSS labels.
If the manufacturer's name on the label is "ACSS," and there is no 2D barcode
on the label, use ACSS Pub. No. 8004461-001 (ATA Service Bulletin No.
7517900-34-0007) to replace the entire Product Identification Label with the
applicable ACSS label. See Figure 11 on Page 37 for an example of a label
without a 2D barcode.
If the manufacturer's name on the label is "ACSS" and the label includes a 2D
barcode, use ACSS Pub. No. 8007056-001 (ATA Service Bulletin
No. 7517900-34-0018) to replace the entire Product Identification Label with the
new ACSS 2D barcode label. See Figure 12 on Page 38 for an example of a
label with a 2D barcode.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 28 of 38

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ACSS®
& Thales Company
Service Bulletin
Table 7. Viewable Software Configuration Before and After Software Upgrade
Software Part Number (Installed Before Upgrade)
End Item  Mod  Software Part No.  Displayed OP SW
Part Number
7517900-56101  PS4084561-903  3412-HNP-02B-03
PS4084561-904  3415-HNP-02B-04
B  9000713-001  9000713-001
7517900-56102  PS4084561-911  3417-HNP-02B-06
PS4084561-912  3416-HNP-02B-07
B  9000712-001  3418-HNP-02B-09
7517900-56104  9000378-003  9000378-003
7517900-56105  9000714-001  9000714-001
7517900-56107  9001049-004  3473-LTZ-200-04
Newly Installed Software Part Number (After Upgrade)
End Item  Mod  Software Part No.  Displayed OP SW  Part Number
7517900-56108  9001049-005  3472-LTZ-200-05
NOTE: 1. If you use Method 3 (Stand-alone PC with an installed TCAS Software Part
Number Tool) to read the Software Part Number, an "@" symbol will show after
the number.
NOTE: 2. TCAS 2000 Product Software that is released after the release of Software, Part
No. 9001049-005 is not included in Table 7, above.
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLO
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 29 of 38

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ACSS®  & Thales Company tons
Service Bulletin
Decision Flow if updating TCAS 2000 Operational
Software onboard the aircraft is an option
Does the aircraft  have an ADL?  No  Obtain a PDL  No
Yes  Yes
Can you read the TCAS
No  Obtain PC program and  No
OP software Part No.
make RS-232 cable
on aircraft?
Yes  Yes
Update Unit On Board Aircraft  Update completed at Service Center
Read current TCAS OP software  Send unit to Service
part number if available  Center for update
on cockpit system
Service Center updates
Upload new software using  and retums unit
ADL or PDL
Install updated unit in aircraft
Was the software upload
successful?
No
Yes
Verify upload by
reading new software Part No  Contact
ACSS Customer
Response Center
Perform system Retum-to-Service  +1 623-445-7070
(Option 3)
Install new software Part No. label
or mark Mod on TCAS unit
Customer completes aircraft certification documentation update with authorities
Figure 1. Decision Chart, TCAS 2000 CU
(On board the Aircraft or by returning to a Service Center)
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7hh Avenue, Phoenix, AZ 85027-4741
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ACSS®
a has Companions
Service Bulletin
My TCAS Software Part Number Tool, 9000727-003
TCAS Software Part Number  Get PN From
• ITCAS
9001049-001
Transponder
Press the 'Quit button to exit
Help  Get Part Number  Quit
Figure 2. Example of a TCAS Software Part Number
Tool Dialog Box
53 PIN  9 PIN "D"
10' MAX
TCAS 2000  9 PIN
53 PIN  "D"
MALE  FEMALE
TX  BLACK
41  RX  WHITE  < 2
GND  SHIELD
49 -  < 5
Figure 3. RS232 Cable
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7*h Avenue, Phoenix, AZ 85027-4741
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Al hales Company ons  ACSS®
Service Bulletin
CONNECTOR  (ARINC 615)  J1  MOUNTING  TRAY
PRODUCT SOFTWARE
PART NUMBER DISPLAY
TCAS
2000
cU
ADAPTER CABLE
SOFTWARE  (P/N 200F-00084)
VERIFICATION FIXTURE
(T326948-901)
31-PIN MATING  53-PIN MATING
CONNECTOR  CONNECTOR
(ARINC 615)
Figure 4. Software Verification Fixture-to TCAS 2000 CU Interconnect
J1  MOUNTING
CONNECTOR  TRAY
(ARINC 615)
VSI/TRA
4067241-843 -844
-845 -860  TCAS
-861 -862  2000
-880 -881  -882 -890  T  CU
-891 -892
ADAPTER CABLE
(P/N 200F-00083)
41-PIN MATING  53-PIN MATING
CONNECTOR  CONNECTOR
(ARINC 615)
Figure 5. Remote VSI/TRA Interconnect
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7"h Avenue, Phoenix, AZ 85027-4741
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ACSS
Service Bulletin
Install Overlay
Label, Part No.  RT-951  Replace Honeywell
9000264-524  Honeywell  COMPUTER UNIT  TCAS  Product Signature  Plate with ACSS
TCAS  907  Plate, 7000037-
PASS
Software  ITCAS
Modification Tear-  SEAR
off Label
AN  LED Panel
CAS COMPUTER
HARDWANT  SOFTWARE
Hardware  P/N  7517900-
Modification  SIN 01014015
Table. Do NOT
change.  Push to Test
Button
Fully conceal
obsolete
manufacturer
information.  J1 Connector
Figure 6. Example of a TCAS 2000 Model RT-951 Front Panel
with Product Identification Label
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7th Avenue, Phoenix, AZ 85027-4741
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a hates compaigions  ACSS®
Service Bulletin
Line 1: RT-951
Line 2: TCAS
Line 3: COMPUTER UNIT
Honeywell
Figure 7. Honeywell Product Signature Plate, Part No. 7000037-207
Line 1: RT-951
Line 2: TCAS
Line 3: COMPUTER UNIT
ACSS™
Figure 8. ACSS Product Signature Plate, Part No. 7000037-907
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7" Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 34 of 38

### Page 35 (OCR)

ACSS®
"Thales Company
Service Bulletin
Before
ACSS  Phoanix, AZ USA  RT - 950  new ACSS  installing the
TCAS COMPUTER  Overlay Label,  remove this
layer.
HARDWARE  SOFTWARE
PIN. 7517900-  10 003  D0 - 1788  LEVEL B
S/N  99031801  S/W MOD
WT  15.3  LOS  BCDEEGH
RIS
DATE  29346  TUVWY  Z  ЛА  Before  installing the
Make sure S/N,  0399  AB  AC AD  AF  new ACSS
WT, and  AG  ДНІ АЗ  ЛК  AL  Overlay Label,
Inspection  DO - 160C ENV CAT [A2F2]YBB[CLMY]  AM  AN AP  AR  AS  remove this
Information is not  obscured when the  AT AU AV  AW AY  layer.
new overlay label
is installed.  FCC ID CB8RT - 950  H/W MOD
C|DEF GHJK  MNPR STU
AA  AB ACAD  AG AH | AJ
AL AM AN AP  \U  AV AWAY
Figure 9. Example of Composite Label Updated
from Honeywell Nomenclature to ACSS Nomenclature
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7th Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 35 of 38

### Page 36 (OCR)

& Tales Company ion  ACSS®
Service Bulletin
Make sure  ACSS
Serial
Number,  TCAS COMPUTER
Inspection  Weight, and  7517900
Information is  Environmental
not obscured.  and TSO
information
FCC ID PSCRT-950  Before installing a
new SW Label,
make sure that the
This is the  printed dash
number is -56108.
Software part
of the label.  MFR 1WYD3
Use only this
part to
update an  HARDWARE MOD
ACSS label.  AB CDEFGHJKLMNPRSTU
PNR 7517900- 1]  MADE IN USA
Make sure that
TSO C1196
shows on the
ABC  GHJKLMNPRSTU  label
19810 N 7th Ave Phoenix, AZ USA
Figure 10. Example of an ACSS Product Identification Overlay Label
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7hh Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 36 of 38

### Page 37 (OCR)

ACSS®
a communica:
Service Bulletin
ACSS  RT-951
TCAS COMPUTER  Use an indelible
black pen to fully
7517900  conceal the JTSO
WT  Lbs  DO-160C ENV CAT]A2F2]YBB[CLMY  and ETSO
information. If the
DATE INSP.#  JYSO CTIO  TSO-C119% 4  TSO is not C119b,  conceal the TSO
information also.
FCC ID P8CRT-950
Remove the  MFR 1WYD3
SW part of the  Install only the
Product ID  SW part of the
Label only.  SER  Product ID
Overlay Label in
this location.
HARDWARE MOD
ABCDEFGHJKLMNPRSTU
PNR 7517900-:
DO-178B LEVEL B SOFTWARE MOD
ABCDEFGHJKLMNPRSTU
19810 N 7th Ave Phoenix, AZ USA
Figure 11. Example of TCAS 2000 Product ID Label with No 2D Bar Code
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7*h Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 37 of 38

### Page 38 (OCR)

ACSS®  A hales Comparatons
Service Bulletin
ACSS  RT-951
Use an indelible
TCAS COMPUTER  black pen to fully
conceal the JTSO
7517900  and ETSO
information. If the
WT  Lbs  DO-160C ENV CAT[A2F2]YBB[CLMY]  TSO is not C119b,
DATE  INSP.#  TSO-C1196  conceal the TSO
3100 C7198 *  information also.
FCC ID P8CRT-950
MFR 1WYD3
2D bar code
Remove the  SER
SW part of the  Install only the
Product ID  SW part of the
Label only.  HARDWARE MOD  Product ID
Overlay Label in
ABCDEFGHJKLMNPRSTU  this location.
PNR 7517900-
DO-178B LEVEL B SOFTWARE MOD
ABCDEFGHJ KLMNPRSTU
19810 N 7th Ave Phoenix, AZ USA
Figure 12. Example of TCAS 2000 Product ID Label with 2D Bar Code)
Release Date: May 24, 2010  ATA Service Bulletin No. 7517900-34-6041
Revision 02: June 28, 2011  ACSS Publication No. 8008231-001
Copyright 2011
Aviation Communication & Surveillance Systems, LLC
19810 North 7th Avenue, Phoenix, AZ 85027-4741
Printed in U.S.A.  Page 38 of 38

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