# Airbus Service Bulletin A350-29-P012

Copy: Revision 01 ("SB A350-29-P012 R1"), 22 pages: PDF https://openairdocs.org/files/sha256/93/f8/93f83b2a2dde9f8509b584f434ff86c049ad99dc8a2a75f6acbd39984085cd60; text https://openairdocs.org/service-documents/airbus/a350-29-p012/file/93f83b2a2dde.md. Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2018-0505; AD 2018-19-19 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.

## Details

- Manufacturer: [Airbus](https://openairdocs.org/service-documents/airbus.md)
- Type: Service bulletin (Service Bulletin)
- Number: A350-29-P012
- Latest revision known: A350-29-P012, Revision 01, dated February 1, 2018 (OpenAirDocs)
- Page: https://openairdocs.org/service-documents/airbus/a350-29-p012

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

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

- [AD 2018-19-19](https://openairdocs.org/ad/2018-19-19.md), effective Oct 29, 2018: Revision 01

Also cited in [1 proposed AD](https://openairdocs.org/service-documents/airbus/a350-29-p012/proposed.md).

## Text (22 pages)

Rights: © Airbus S.A.S. Filed by the FAA in regulations.gov docket FAA-2018-0505; AD 2018-19-19 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1

A350
SERVICE BULLETIN
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 1
CONF ALL
AIRBUS S.A.S.
Customer Services
T echnical Data Support and Services
31703 Blagnac Cedex
FRANCE
 
The content of this document is the property of Airbus.
It is supplied in confidence and commercial security on its contents must be maintained.
It must not be used for any purpose other than that for which it is supplied, nor may information
contained in it be disclosed to unauthorized persons.
It must not be reproduced in whole or in part without permission in writing from the owners of the
copyright. Requests for reproduction of any data in this document and the media authorized for it must
be addressed to Airbus.
MANDATORY MANDATORY MANDATORY
ATA SYSTEM: 29
TITLE: HYDRAULIC POWER - DEFINE AND INSTALL HMCA S/W UPGRADE TO
AVOID EXCESSIVE HEAT REJECTION
MODIFICATION No.:
111528L43358
112090L43543

### Page 2

A350
SERVICE BULLETIN
REVISION TRANSMITTAL SHEET
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 2
ATA SYSTEM: 29
TITLE: HYDRAULIC POWER - DEFINE AND INSTALL HMCA S/W UPGRADE TO
AVOID EXCESSIVE HEAT REJECTION
REVISION TRANSMITTAL SHEET
This page transmits Revision No. 01 of Service Bulletin No. A350-29-P012.
A. ADDITIONAL WORK
No additional work is required by this revision.
B. REASON
Revision No.01 issued to extend the applicability.
C. CHANGES
PLANNING INFORMATION
APPLICABILITY Applicability extended
MATERIAL INFORMATION
LIST OF NEW PARTS Procurement address updated
D. FILING INSTRUCTIONS
This Service Bulletin has been generated electronically and is reissued as a complete
document. Replace the complete document.
Put this Revision Transmittal Sheet in front of the Service Bulletin.
E. HISTORY OF PREVIOUS REVISIONS
No previous revision
F. REVISION SEQUENCE
ORIGINAL: Oct 06/17
REVISION No. : 01 - Feb 01/18

### Page 3

A350
SERVICE BULLETIN
SUMMARY
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 3
ATA SYSTEM: 29
TITLE: HYDRAULIC POWER - DEFINE AND INSTALL HMCA S/W UPGRADE TO
AVOID EXCESSIVE HEAT REJECTION
SUMMARY
This summary is for information only and is not approved for modification of the aircraft.
A. MODIFICATIONS
MODIFICATION CLASSIFICATION
MAJOR 112090L43543
MINOR 111528L43358
NOTE: As per EASA IR 21, a minor change is one that has no appreciable effect on the
mass, balance, structural strength, reliability, operational characteristics affecting
the airworthiness of the product. All other changes are major changes.
NOTE: This modification related to an Airworthiness issue has been classified by Airbus
and confirmed by EASA as minor in accordance with EU Part 21.A.91. As such, this
minor change is handled by Airbus under its Design Organisation Approval No.
EASA.21J.031.
B. REASON
(1) History
This modification consists of the implementation of new Hydraulic Monitoring and
Control Application (HMCA) Software (SW) logic to supplement Engine Driven Pump
(EDP) overheat failure mode and implement an EDP auto depress function to avoid
overheated hydraulic fluid rejection.
In detail the modification S4.2 includes three changes:
- TEMP HI and OVHT indication robustness:
The TEMP HI/OVHT alerts disappeared when sensor was declared out of range
(invalid signals reset TEMP HI/OVHT).
Now the reset condition of TEMP HI/OVHT is only based on temperature
threshold.
- EDP auto depress at TEMP HI threshold (irreversible in flight).
- Inhibition of the spurious Case Drain (CD) filter clogged at second engine start
to avoid operational impact as DM HYD FILTER CLOGGED due to CD filter will
become NOGO.
(2) Objective/Action
Upload the revised and improved HMCA S4.2 and the Maintenance System Load (MSL)
SW for B23 hosted on cluster H3.
(3) Advantages
Incorporation of this Service Bulletin will address EDP rapid overheat in-service
events by introducing the HMCA S4.2 SW standard . In particular an EDP auto depress
function will be implemented in order to avoid overheated hydraulic fluid rejection,
and the robustness of TEMP HI and OVHT indication will be improved.
This modification is cancelling recommendation provided by Ref. OIT 999.073/17 Rev
00.

### Page 4

A350
SERVICE BULLETIN
SUMMARY
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 4
(4) Operational/Maintenance Consequences
None
C. GENERAL EVALUATION
EVALUATION TABLE
COMPLIANCE MANDATORY (1) CANCELS INSPECTION SB NO
POTENTIAL AD YES A/C OPERATION AFFECTED NO
RELIABILITY AFFECTED NO PAX COMFORT AFFECTED NO
COST SAVING NO ETOPS AFFECTED NO
STRUCTURAL LIFE
EXTENSION
NO VENDOR SB NO
LIFE LIMIT NO LINE MAINTENANCE AFFECTED NO
(1): Service Bulletin must be accomplished.
D. MAINTENANCE CONFIGURATION
None
E. MATERIAL PRICE INFORMATION
(1) Modification
(a) T ask set A350-A-29-XX-P012-01000-93AA-A Modification of HMCA SW by
upgrading to S4.2
MATERIAL PRICE INFORMATION TABLE
MATERIAL SET QTYPER A/C PRICE PER A/C MAIN PARTS
FLS kit 29P012N01R00 1 450.00 USD Software
F. APPLICABILITY
This Service Bulletin is applicable to this (these) operator(s):
AAR CAL CPA CRK DAL DLH ETH FBU FIN FWI HVN MAU QTR SIA TAM THA
G. CONCURRENT REQUIREMENTS
Accomplishment of this Service Bulletin requires the prior or simultaneous accomplishment
of the following Service Bulletin(s):
Service Bulletin(s) Modification(s)
Ref. SB A350-28-P011 110591L43149
Ref. SB A350-42-P003 107924L42957
NOTE: Service Bulletin No. A350-28-P011 (FUEL - FUEL QUANTITY AND MANAGEMENT
SYSTEM (FQMS) - DEFINE AND INSTALL FQMS V4.1 SOFTWARE STANDARD) is a
concurrent requirement if MOD No. 110591L43149 has not been embodied before
delivery.
NOTE: Service Bulletin No. A350-42-P003 (INTEGRATED MODULAR AVIONICS - AVIONICS
BATCH 2 (PART1)) is a concurrent requirement if MOD No. 107924L42957 has not
been embodied before delivery.
H. NATURE OF THE WORK

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A350
SERVICE BULLETIN
SUMMARY
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 5
(1) Modification
(a) T ask set A350-A-29-XX-P012-01000-93AA-A Modification of HMCA SW by
upgrading to S4.2
AIRCRAFT NO
EQUIPMENT YES
I. MANPOWER
(1) Modification
(a) T ask set A350-A-29-XX-P012-01000-93AA-A Modification of HMCA SW by
upgrading to S4.2
MANPOWER
TOTAL MAN-HOURS 2.00 h
ELAPSED TIME (HOURS) 2.00 h

### Page 6

A350
SERVICE BULLETIN
SUMMARY
Figure ICN-A350-A-29XXP012-A-FAPE3-03ICX-A-001-01 SHEET 1/1
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18
General overview
Page 6
J. GENERAL OVERVIEW
CONF ALL
A
FR1
Z210
A
8TC
10TC
OMT
KEYBOARD-OMT
FR12
SOFTWARE TO BE UPLOADED
THROUGH THE COMPUTER
ICN-A350-A-29XXP012-A-FAPE3-03ICX-A-001-01

### Page 7

A350
SERVICE BULLETIN
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 7
ATA SYSTEM: 29
TITLE: HYDRAULIC POWER - DEFINE AND INSTALL HMCA S/W UPGRADE TO
AVOID EXCESSIVE HEAT REJECTION
1. PLANNING INFORMATION
A. APPLICABILITY
NOTE: These modifications are embodied before delivery on aircraft with Manufacturer
Serial Number (MSN) 0052, 0055, 0060, 0090, 0098, 0100, 0106, 0112, 0114,
0126, 0132, 0143, 0146 thru 0148, 0150 thru 0151, 0153 thru 0155, 0157 thru
0159, 0162 thru 0163, 0165 and subsequent.
(1) Models
ON A/C 0005-0051, 0053, 0054, 0056-0058, 0061-0064, 0066-0070, 0072-0087, 0089,
0091-0097, 0099, 0101, 0103-0105, 0107, 0109, 0111, 0113, 0115-0117, 0119-0124,
0127-0130, 0133-0138, 0140, 0142, 0144, 0145, 0149, 0160, 0164
350-941
CONF ALL
(2) Applicability by MSN
0005-0051 0053 0054 0056-0058 0061-0064 0066-0070 0072-0087 0089 0091-0097
0099 0101 0103-0105 0107 0109 0111 0113 0115-0117 0119-0124 0127-0130
0133-0138 0140 0142 0144 0145 0149 0160 0164
(3) MSN by configuration
MSN CONFIGURATION
0005 0006 0007 0008 0009 0010 0011 0012 0013 0014 0015
0016 0017 0018 0019 0020 0021 0022 0023 0024 0025 0026
0027 0028 0029 0030 0031 0032 0033 0034 0035 0036 0037
0038 0039 0040 0041 0042 0043 0044 0045 0046 0047 0048
0049 0050 0051 0053 0054 0056 0057 0058 0061 0062 0063
0064 0066 0067 0068 0069 0070 0072 0073 0074 0075 0076
0077 0078 0079 0080 0081 0082 0083 0084 0085 0086 0087
0089 0091 0092 0093 0094 0095 0096 0097 0099 0101 0103
0104 0105 0107 0109 0111 0113 0115 0116 0117 0119 0120
0121 0122 0123 0124 0127 0128 0129 0130 0133 0134 0135
0136 0137 0138 0140 0142 0144 0145 0149 0160 0164
001
(4) Configuration definition
Configuration 001
CONF 001 is applicable for all the aircraft affected by this Service Bulletin as a
standard configuration.
B. CONCURRENT REQUIREMENTS
Accomplishment of this Service Bulletin requires the prior or simultaneous accomplishment
of the following Service Bulletin(s):
Service Bulletin(s) Modification(s)
Ref. SB A350-28-P011 110591L43149
Ref. SB A350-42-P003 107924L42957

### Page 8

A350
SERVICE BULLETIN
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 8
NOTE: Service Bulletin No. A350-28-P011 (FUEL - FUEL QUANTITY AND MANAGEMENT
SYSTEM (FQMS) - DEFINE AND INSTALL FQMS V4.1 SOFTWARE STANDARD) is a
concurrent requirement if MOD No. 110591L43149 has not been embodied before
delivery.
NOTE: Service Bulletin No. A350-42-P003 (INTEGRATED MODULAR AVIONICS - AVIONICS
BATCH 2 (PART1)) is a concurrent requirement if MOD No. 107924L42957 has not
been embodied before delivery.
C. REASON
(1) History
This modification consists of the implementation of new Hydraulic Monitoring and
Control Application (HMCA) Software (SW) logic to supplement Engine Driven Pump
(EDP) overheat failure mode and implement an EDP auto depress function to avoid
overheated hydraulic fluid rejection.
In detail the modification S4.2 includes three changes:
- TEMP HI and OVHT indication robustness:
The TEMP HI/OVHT alerts disappeared when sensor was declared out of range
(invalid signals reset TEMP HI/OVHT).
Now the reset condition of TEMP HI/OVHT is only based on temperature
threshold.
- EDP auto depress at TEMP HI threshold (irreversible in flight).
- Inhibition of the spurious Case Drain (CD) filter clogged at second engine start
to avoid operational impact as DM HYD FILTER CLOGGED due to CD filter will
become NOGO.
(2) Objective/Action
Upload the revised and improved HMCA S4.2 and the Maintenance System Load (MSL)
SW for B23 hosted on cluster H3.
(3) Advantages
Incorporation of this Service Bulletin will address EDP rapid overheat in-service
events by introducing the HMCA S4.2 SW standard . In particular an EDP auto depress
function will be implemented in order to avoid overheated hydraulic fluid rejection,
and the robustness of TEMP HI and OVHT indication will be improved.
This modification is cancelling recommendation provided by Ref. OIT 999.073/17 Rev
00.
(4) Operational/Maintenance Consequences
None
D. DESCRIPTION
T o accomplish this Service Bulletin it is necessary to:
(1) Modification
(a) T ask set A350-A-29-XX-P012-01000-93AA-A Modification of HMCA SW by
upgrading to S4.2
1 Upload the HMCA S4.2 Software and the RBC T able to the CPIOM-H31
(8TF31), CPIOM-H32 (8TF32), CPIOM-H33 (8TF33) and CPIOM-H34 (8TF34)

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SERVICE BULLETIN
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REV 01Feb 01/18 Page 9
2 Upload the CPIOM H3 MSL File Software (70TFSW3) to the ASFC (1TC)
E. COMPLIANCE
(1) Classification
MANDATORY: Service Bulletin must be accomplished.
(2) Accomplishment Timescale
This Service Bulletin has been classified Mandatory. It is expected that an
Airworthiness Directive (AD) published by the European Aviation Safety Agency (EASA)
will be issued to confirm this classification. The accomplishment timescale, which has
not yet been defined, will be given in the AD.
F. APPROVAL
The technical content of this document is approved under the authority of Design
Organisation Approval No. EASA.21J.031.
If an aircraft listed in the applicability has a modification or repair embodied that is not
of AIRBUS origin, and which affects the content of this Service Bulletin, the operator
is responsible for obtaining approval by its airworthiness authority for any adaptation
necessary before incorporation of the Service Bulletin.
G. MANPOWER
The manpower estimates given in this Service Bulletin are based on the direct labor cost to
do the work. These estimates assume that the work will be done by experienced personnel,
and may need to be revised upwards to suit operator’s circumstances. The estimates do not
include the time to prepare, plan or inspect the work. Manufacture and procurement of parts
and tools, drying times for paints, sealants, etc., and general administration work are also
not included.
(1) Modification
(a) T ask set A350-A-29-XX-P012-01000-93AA-A Modification of HMCA SW by
upgrading to S4.2
PREPARATION
Job Set-up 0.50 h
PROCEDURE
Upload the HMCA S4.2 Software and the RBC T able to
the CPIOM-H31 (8TF31), CPIOM-H32 (8TF32), CPIOM-H33
(8TF33) and CPIOM-H34 (8TF34)
0.75 h
Upload the CPIOM H3 MSL File Software (70TFSW3) to the
ASFC (1TC)
0.25 h
PREPARATION FOR TEST
None
TEST
None
CLOSE-UP
Close-up 0.50 h
TOTAL MAN-HOURS 2.00 h
ELAPSED TIME (HOURS) 2.00 h
H. WEIGHT AND BALANCE
Not changed

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A350
SERVICE BULLETIN
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 10
I. ELECTRICAL LOAD DATA
Not changed
J. REFERENCES
Concurrent Service Bulletin (SB)
A350-28-P011 A350-42-P003
(1) Modification
(a) T ask set A350-A-29-XX-P012-01000-93AA-A Modification of HMCA SW by
upgrading to S4.2
ELECTRICAL STANDARD PRACTICES (ESP)
A350-A-20-55-XX-01ZZZ-042Z-A
MAINTENANCE PROCEDURE (MP)
A350-A-24-41-XX-00ZZZ-170Z-A
A350-A-24-41-XX-00ZZZ-561Z-A
A350-A-42-11-XX-00ZZZ-752Z-A
A350-A-45-XX-XX-00ZZZ-133Z-A A350-A-46-12-01-05ZZZ-752Z-A
OPERATOR INFORMATION TELEX (OIT)
999.073/17
TECHNICAL FOLLOW UP (TFU)
29.10.00.057
K. PUBLICATION AFFECTED
MAINTENANCE ILLUSTRATED PART DATA (MIPD)
L. INDUSTRY SUPPORT INFORMATION
AIRBUS will share the costs of accomplishment of this Service Bulletin by providing the kits
at no charge for orders placed before Jan 30/18.
This Service Bulletin is the subject of an AIRBUS monitored retrofit campaign.
For the organization of this retrofit, you are kindly requested to contact AIRBUS retrofit
management department: monitored.retrofit@airbus.com.

### Page 11

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SERVICE BULLETIN
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 11
2. MATERIAL INFORMATION
A. MATERIAL APPLICABILITY
Material for task set A350-A-29-XX-P012-01000-93AA-A Modification of HMCA SW
by upgrading to S4.2
MATERIAL QTY SEE NOTES
FLS kit 29P012N01R00 1
Interchangeable parts See SB
B. TOOLING
No tools
C. CONSUMABLES
No consumables
D. LIST OF NEW PARTS
FLS kit 29P012N01R00
Cost 450.00 USD
Availability 007 d (calendar days from receipt of order)
NOTE(S)
The availability given above is the standard lead-time from the date of your purchase
order. If items are required before this time, please include a retrofit planning
schedule with your order so that we can try to comply with your requirements.
The sales terms (costs and availability) are estimated in relation to economic
conditions. The latest valid price and lead-time for ordering purposes shall be
obtained through the AIRBUS Spares portal or through a request for quotation to
fls.delivery@airbus.com.
Procurement address FAPE3
AIRBUS
2, ROND POINT EMILE DEWOITINE
31700 BLAGNAC
FRANCE
E-mail: fls.delivery@airbus.com
Internet: http://spares.airbus.com
NOTE(S)
All software Part Numbers required for accomplishment of this Service Bulletin will be
delivered through Electronic Delivery Service (EDS) and will have to be downloaded
from airnavX MyLibrary application of the AirbusWorld portal.
Customers with aircraft shown in the applicability of this Service Bulletin should send
a purchase order to AIRBUS at the address given above and quote the number of this
Service Bulletin.
ITEM PART No. QTY (UM) KEYWORD DRAWING SEE NOTES
ABF20A6FYAL5207 1 SOFTWARE
ABF4CA6T3ALRF11 1 SOFTWARE
PBA526217000003 1 SOFTWARE
E. LIST OF EXISTING PARTS
Interchangeable parts for task set A350-A-29-XX-P012-01000-93AA-A Modification
of HMCA SW by upgrading to S4.2

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REV 01Feb 01/18 Page 12
DESCRIPTION OLD PART No. NEW PART No. INT SEE NOTES
SOFTWARE-CPIOM
H3 MSL FILE ABF22A6FYAL5205 ABF20A6FYAL5207 03 (1)
SOFTWARE-CPIOM
H3 RBCONF ABF46A6T3ALRE09 ABF4CA6T3ALRF11 03 (1)
SOFTWARE-HMCA PBA536217000002 PBA526217000003 03 (1)
NOTE(S)
For definitions of interchangeability codes in column INT. refer to ATA (CSDD Chapter
2).
(1): The interchangeability possibilities are for new or modified parts introduced by the
accomplishment of this Service Bulletin.

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3. ACCOMPLISHMENT INSTRUCTIONS
Task set A350-A-29-XX-P012-01000-93AA-A
Modification of HMCA SW by upgrading to S4.2
WARNING: MAKE SURE THAT YOU OBEY ALL THE WARNINGS AND ALL THE CAUTIONS
INCLUDED IN THE REFERENCED PROCEDURES.
CAUTION: ALWAYS OBEY THE PRECAUTIONS THAT FOLLOW TO KEEP ELECTRICAL
WIRING IN A SATISFACTORY CONDITION (ELECTRICALLY AND MECHANICALLY
SERVICEABLE). WHEN YOU DO MAINTENANCE WORK, REPAIRS OR
MODIFICATIONS, ALWAYS KEEP ELECTRICAL WIRING, COMPONENTS AND
THE WORK AREA AS CLEAN AS POSSIBLE. TO DO THIS:
- PUT PROTECTION, SUCH AS PLASTIC SHEETING, CLOTHS, ETC., AS
NECESSARY ON WIRING OR COMPONENTS.
- REGULARLY REMOVE ALL SHAVINGS, UNWANTED MATERIAL AND
OTHER CONTAMINATION.
THESE PRECAUTIONS WILL DECREASE THE RISK OF CONTAMINATION AND
DAMAGE TO THE ELECTRICAL WIRING INSTALLATION.
IF THERE IS CONTAMINATION, REFER TO Ref. ESP A350-A-20-55-
XX-01ZZZ-042Z-A.
NOTE: The accomplishment instructions of this Service Bulletin include procedures given in
other documents or in other sections of the Service Bulletin. When the words “refer to”
are used and the operator has a procedure accepted by the local authority he belongs to,
the accepted alternative procedure can be used. When the words “in accordance with”
are used then the given procedure must be followed.
NOTE: The access and close-up instructions, not comprising return to service tests, in this
Service Bulletin do not constitute or affect the technical intent of the Service Bulletin.
Operators can therefore, as deemed necessary, omit or add access and/or close-up steps
to add flexibility to their maintenance operations as long as the technical intent of the
Service Bulletin is met within the set parameters.
NOTE: Manual titles given in the accomplishment instructions are referred to by acronyms. Refer
to paragraph 1.J., References, for the definition of acronyms.
NOTE: This Service Bulletin is classified mandatory or expected to be classified mandatory by
an Airworthiness Directive (AD). The paragraphs 3.C. and 3.E. in these accomplishment
instructions are Required for Compliance (RC) and must be done to comply with the AD.
T o allow more flexibility, the rule "refer to" and "in accordance with" will apply to these
paragraphs 3.C. and 3.E. Other paragraphs are recommended and may be deviated from,
done as part of other actions or done with accepted methods different from those given
in the Service Bulletin, as long as the RC paragraphs can be done and the aircraft can be
put back into a serviceable condition.
NOTE: This Service Bulletin contains the instructions for the on-aircraft maintenance necessary
to ensure the continued airworthiness of the aircraft.
For any deviations to the instructions contained herein, contact AIRBUS for further
instructions and approval.
A. TASK SET ASSOCIATED INFORMATION
Task Manpower
TOTAL MAN-HOURS 2.00h
ELAPSED TIME (HOURS) 2.00h

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B. PREPARATION
(1) Task A350-A-29-XX-P012-01001-540A-A - Job Set-up
Job Set-Up Information
Manpower/Resources/Skills
Man-hours 0.50h
Minimum Number of person 1
Elapsed Time 0.50h
Referenced Information
Manuals/Drawings References/Sheets
MP
A350-A-24-41-XX-00ZZZ-170Z-A
A350-A-42-11-XX-00ZZZ-752Z-A
A350-A-46-12-01-05ZZZ-752Z-A
Procedure
NOTE: For the basic Aircraft configuration, refer to MP A350-A-00-6X-XX-11001-018A-
D “Introductions”.
(a) Make sure that the aircraft is electrically grounded, refer to Ref. MP A350-
A-24-41-XX-00ZZZ-170Z-A.
(b) Do the job set-up procedure as specified in the uploading of software to the Core
Processing Input/Output Module (CPIOM) H3 (8TF31, 8TF32, 8TF33 and 8TF34),
refer to Ref. MP A350-A-42-11-XX-00ZZZ-752Z-A.
(c) Do the job set-up procedure as specified in the uploading of the Maintenance
System Load (MSL) file software component(s) to the Avionics Server Function
Cabinet (ASFC) (1TC), refer to Ref. MP A350-A-46-12-01-05ZZZ-752Z-A.
C. PROCEDURE
(1) Task A350-A-29-XX-P012-01001-920A-A - Upload the HMCA S4.2 Software
and the RBC Table to the CPIOM-H31 (8TF31), CPIOM-H32 (8TF32), CPIOM-
H33 (8TF33) and CPIOM-H34 (8TF34)
Job Set-Up Information
Working Area
Impacted Zone Access / Work Location
210 Access Door 831, Door 841
Manpower/Resources/Skills
Man-hours 0.75h
Minimum Number of person 1
Elapsed Time 0.75h
Material necessary to do the job
FLS kit 29P012N01R00
ITEM PART No. QTY (UM) KEYWORD DRAWING SEE NOTES
ABF4CA6T3ALRF11 1 SOFTWARE
PBA526217000003 1 SOFTWARE

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Referenced Information
Manuals/Drawings References/Sheets
MP A350-A-42-11-XX-00ZZZ-752Z-A
Procedure
(a) Upload the HMCA S4.2 software and the Resource BITE Configuration (RBC)
table to the CPIOM-H31 (8TF31), CPIOM-H32 (8TF32), CPIOM-H33 (8TF33) and
CPIOM-H34 (8TF34), refer to Ref. MP A350-A-42-11-XX-00ZZZ-752Z-A and Ref.
Fig. Location of the equipment.
1 For CPIOM-H31 (8TF31):
FIN 831TFSW3
1 SOFTWARE-CPIOM H3
RBCONF
ABF46A6T3ALRE09    
Software becomes:
FIN 831TFSW3
1 SOFTWARE-CPIOM H3
RBCONF
ABF4CA6T3ALRF11  
And
FIN 1JY1SW1
1 SOFTWARE-HMCA PBA536217000002    
Software becomes:
FIN 1JY1SW1
1 SOFTWARE-HYDRAULIC
MONITORING AND
CONTROL APPLICATION
PBA526217000003  
2 For CPIOM-H32 (8TF32):
FIN 832TFSW3
1 SOFTWARE-CPIOM H3
RBCONF
ABF46A6T3ALRE09    
Software becomes:
FIN 832TFSW3
1 SOFTWARE-CPIOM H3
RBCONF
ABF4CA6T3ALRF11  
And
FIN 1JY2SW1
1 SOFTWARE-HMCA PBA536217000002    
Software becomes:
FIN 1JY2SW1
1 SOFTWARE-HYDRAULIC
MONITORING AND
CONTROL APPLICATION
PBA526217000003  
3 For CPIOM-H33 (8TF33):
FIN 833TFSW3
1 SOFTWARE-CPIOM H3
RBCONF
ABF46A6T3ALRE09

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A350
SERVICE BULLETIN
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 16
Software becomes:
FIN 833TFSW3
1 SOFTWARE-CPIOM H3
RBCONF
ABF4CA6T3ALRF11  
And
FIN 1JG1SW1
1 SOFTWARE-HMCA PBA536217000002    
Software becomes:
FIN 1JG1SW1
1 SOFTWARE-HYDRAULIC
MONITORING AND
CONTROL APPLICATION
PBA526217000003  
4 For CPIOM-H34 (8TF34):
FIN 834TFSW3
1 SOFTWARE-CPIOM H3
RBCONF
ABF46A6T3ALRE09    
Software becomes:
FIN 834TFSW3
1 SOFTWARE-CPIOM H3
RBCONF
ABF4CA6T3ALRF11  
And
FIN 1JG2SW1
1 SOFTWARE-HMCA PBA536217000002    
Software becomes:
FIN 1JG2SW1
1 SOFTWARE-HYDRAULIC
MONITORING AND
CONTROL APPLICATION
PBA526217000003

### Page 17

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SERVICE BULLETIN
Figure ICN-A350-A-29XXP012-A-FAPE3-03JCQ-A-001-01 SHEET 1/1
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18
Location of the equipment
Page 17
CONF ALL
A
FR1
Z210
A
8TC
10TC
OMT
KEYBOARD-OMT
FR12
ICN-A350-A-29XXP012-A-FAPE3-03JCQ-A-001-01

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SERVICE BULLETIN
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 18
(2) Task A350-A-29-XX-P012-02001-920A-A - Upload the CPIOM H3 MSL File
Software (70TFSW3) to the ASFC (1TC)
Job Set-Up Information
Working Area
Impacted Zone Access / Work Location
210 Access Door 831, Door 841
Manpower/Resources/Skills
Man-hours 0.25h
Minimum Number of person 1
Elapsed Time 0.25h
Material necessary to do the job
FLS kit 29P012N01R00
ITEM PART No. QTY (UM) KEYWORD DRAWING SEE NOTES
ABF20A6FYAL5207 1 SOFTWARE
Referenced Information
Manuals/Drawings References/Sheets
MP A350-A-46-12-01-05ZZZ-752Z-A
Procedure
(a) Upload the CPIOM H3 MSL file software component(s) to the ASFC (1TC), refer to
Ref. MP A350-A-46-12-01-05ZZZ-752Z-A and Ref. Fig. Location of the equipment.
1 For ASFC (1TC):
FIN 70TFSW3
1 SOFTWARE-CPIOM H3
MSL FILE
ABF22A6FYAL5205    
Software becomes:
FIN 70TFSW3
1 SOFTWARE-CPIOM H3
MSL FILE
ABF20A6FYAL5207

### Page 19

A350
SERVICE BULLETIN
Figure ICN-A350-A-29XXP012-A-FAPE3-03JCQ-A-001-01 SHEET 1/1
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18
Location of the equipment
Page 19
CONF ALL
A
FR1
Z210
A
8TC
10TC
OMT
KEYBOARD-OMT
FR12
ICN-A350-A-29XXP012-A-FAPE3-03JCQ-A-001-01

### Page 20

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SERVICE BULLETIN
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 20
D. PREPARATION FOR TEST
None
E. TEST
None
F. CLOSE-UP
(1) Task A350-A-29-XX-P012-01001-740A-A - Close-up
Job Set-Up Information
Manpower/Resources/Skills
Man-hours 0.50h
Minimum Number of person 1
Elapsed Time 0.50h
Referenced Information
Manuals/Drawings References/Sheets
MP A350-A-24-41-XX-00ZZZ-561Z-AA350-A-45-XX-XX-00ZZZ-133Z-A
Procedure
(a) Make sure that the work areas are clean and clear of tools and other items of
equipment.
(b) Close the maintenance session, refer to Ref. MP A350-A-45-XX-XX-00ZZZ-133Z-A.
(c) De-energize the aircraft electrical circuits, refer to Ref. MP A350-A-24-41-
XX-00ZZZ-561Z-A.
(d) Put the aircraft back to its initial configuration.
G. ADMINISTRATIVE
(1) Task A350-A-29-XX-P012-01001-90AA-A - Administrative
Procedure
Confirm in the applicable aircraft records that you have completed all the work defined
in this Service Bulletin task set as required.

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A350
SERVICE BULLETIN
APPENDIX
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 21
APPENDIX
A. REPORTING SHEET
TITLE: HYDRAULIC POWER - DEFINE AND INSTALL HMCA S/W UPGRADE TO
AVOID EXCESSIVE HEAT REJECTION
MODIFICATION No.: 111528L43358 112090L43543
(1) SB Reporting status
This Service Bulletin will only be incorporated into affected customized Maintenance
and Flight Operations Products if it is duly reported to Airbus.
(2) GENERAL information
The SB Reporting policy is published in ISI 00.00.00135. This document provides
information regarding: the SB Reporting means and benefits, the update of
customized Maintenance Products and customized Flight Operations Products.
If this Service Bulletin has an operational impact, refer to paragraph "Flight Operations
Products" for further information on the update of affected Flight Operations Products.
(3) SB Reporting procedure
Standard practice to report SB is to use the online reporting application on
AirbusWorld.
Refer to ISI 00.00.00179:
- For complete information on reporting means to Airbus, Question 2 "What are
the standard practices for SB Reporting?"
- If this SB requires previous or simultaneous accomplishment of other SBs,
Question 3 "What about the reporting of prerequisite Service Bulletins?"
NOTE: ISI 00.00.00179 covers all the frequently asked questions about SB Reporting.
It is revised on a regular basis.

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A350
SERVICE BULLETIN
APPENDIX
REV 00 Oct 06/17 A350-29-P012
REV 01Feb 01/18 Page 22
B. QUALITY PERCEPTION FORM
Use this form to tell us what is your perception of the quality of this Service Bulletin.
The reported data that you provide us will be used to analyse areas of difficulties and to
take corrective action to further improve the quality of our Service Bulletin.
We thank you for the time you have taken in completing this form.
Quality rating of this SB 4 3 2 1
Quality rating of the Accomplishment Instructions 4 3 2 1
Quality rating of the Illustrations 4 3 2 1
Is this SB easy to understand ? Y / N
NOTE: Please rate on a scale of 1 to 4, with 4 being the highest score
If you have difficulties in the accomplishment of this SB please quote below the area(s) and
give a short description of the issue.
Planning Material Instructions
X Applicability X T ooling X Preparation
X Reason X List of Materials
Operator Supplied
X Mod/Inspection
X Manpower X Kit content X T est
X References X Re-identification X Close-up
X Publication X Illustrations
X Industry Support
Comments :
Operator : Date :
Name/Title
Please return this form to :
AIRBUS CUSTOMER SERVICES DIRECTORATE
Service Bulletins Management
1 Rond Point Maurice Bellonte
31707 BLAGNAC CEDEX
FRANCE
Fax: (+33) 5 61 93 42 51
Or via your Resident Customer Support Office.

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