Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 1 of 21 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

EMERGENCY HYDRAULIC POWER - RAM AIR TURBINE - CHECK/REPLACE ACTUATOR

© 2014 Hamilton Sundstrand Corporation
PROPRIETARY
THIS DOCUMENT IS THE PROPERTY OF UTC AEROSPACE SYST EMS. YOU MAY NOT POSSESS, USE, COPY OR DISCLOSE THIS DOCUMENT OR ANY INFORMATION IN IT, FOR ANY PURPOSE, INCLUDING WITHOUT LIMITATION, TO DESIGN, MANUFACTURE OR REPAIR PARTS, OR OBTAIN ANY GOVERNMENT APPROVAL TO DO SO, WITHOUT UTC AEROSPACE SYSTEMS’ EXPRESS WRITTEN PERMISSION. NEITHER RECEIPT NOR POSSESSI ON OF THIS DOCUMENT ALONE, FROM ANY SOURCE, CONSTITUTES SUCH PERMISSION. POSSESSION, USE, COPYING OR DISCLOSURE BY ANYONE WITHOUT UTC AEROSPACE SYSTEMS’ EXPRESS WRITTEN PERMISSION IS NO T AUTHORIZED AND MAY RESULT IN CRIMINAL AND/OR CIVIL LIABILITY.
INFORMATION SUBJECT TO EXPORT CONTROL LAWS Subject to the EAR, ECCN 9E991 This information is subject to the export control laws of the United States, specific ally including the Export Administration R egulations (EAR), 15 C.F.R. Part 730 et. seq. Transfer, retransfer, or disclosure of this data by any means to a non-U.S. person (individual or c ompany), whether in the United States or abroad, without any required expor t license or other approval from the U.S Government is prohib ited, including without limitation any divers ion to a military end user or use in a military end use application.
THE DATA IN THIS DOCUMENT WERE DEVELOPED ONLY TO MAINTAIN SYSTEMS AND/OR PARTS MANUFACTURED BY OR FOR HAMILTON SUNDSTRAND OR APPROVED BY HAMILTON SUNDST RAND. THE DATA MAY NOT BE APPLICABLE TO ANY OTHER SYSTEMS AND/OR PARTS, REGARDLESS OF THEIR APPARENT SI MILARITY TO SYSTEMS AND/OR PARTS MANUFACTURED BY OR FOR HAMILTON SUNDSTRAND OR APPROVED BY HAMILTON SUNDSTRAND. DO NOT RE LY IN ANY WAY ON DATA IN THIS DOCUMENT TO MAINTAIN OR OTHERWISE SUPPORT SYSTEMS AND/OR PARTS THAT WERE NOT MANUFACTURED BY OR FOR HAMILTON SUNDSTRAND OR APPROVED BY HAMILTON SUNDSTRAND WITHOUT EVI DENCE THAT THE FEDERAL AVIATION ADMINISTRATION OR OTHER REGULATORY AGENCY HAS DETERM INED THAT THE DATA IN TH IS DOCUMENT IS VALID FOR SUCH USE.
HAMILTON SUNDSTRAND ASSUMES NO LIABILITY WHATSO EVER, WHETHER CONTRACTUAL, WARRANTY, TORT OR OTHERWISE, FOR UNAUTHORIZED ALTERA TION OR ALTERATIONS NOT PERFORMED IN ACCORDANCE WITH HAMILTON SUNDSTRAND APPROVED PROCEDURES. 1. PLANNING INFORMATION A. Effectivity (1) The Hamilton Sundstrand Ram Air Turbines (RAT), Model ERPS33T, all serial numbers, that are listed in Table 1 of this bulletin.

Table 1 Table 1 RAT Part Number Effectivity 772722D 772722H 772722E 772722J 772722F 772722L 772722GOriginal Issue Date: Jun 6/14 ERPS33T-29-7 Page 2 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. (2) The RAT actuators that follow: (a) For an actuator, PN 5915769 (Arkwin PN 1211526-003), with a serial number that is not listed in Table 2 of this bulletin, the actu ator should be removed from service, modified, and then identified as part number 5917130-2. (b) All actuators, PN 5912536 (Arkwin PN 1211526-002), from the Supplier Arkwin, installed on RAT or stocked as spares, rotables, or repair parts are affected. These actuators should be removed from se rvice, modified, and then identified as part number 5917130-2. (c) All actuators PN 5915769 (Arkwin PN 1211526-003), from the Supplier Arkwin, installed on RAT or stocked as spares, rot ables, or repair parts that are listed in Table 2 of this bulletin are affected. (Refer to Table 2 of this bulletin for disposition.) (d) If the actuator nameplate is missing, the actuator should be removed from service and returned to Arkwin Industries (CAGE Code 98391). Arkwin Industries should modify (if necessary) the actuator (with a missing nameplate), and then identify it as part number 5917130-2.Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 3 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. Table 2

Table 2 Note 1: The noted actuators were modified (retrofitted) according to the instructions in Hamilton Sundstrand Service Bulletin ER PS33T-29-5 and are correctly shimmed. These actuators have the intent of this bulletin incorporated. These retrofitted actuators may remain on the aircraft, but should be identified as part number 5917130-1. (Refer to paragraph 3. F. of this bulletin for identification instructions.) Table 2 Serial Numbers of Actuators (PN 5915769) from the Supplier Arkwin

Serial Numbers Description Disposition New Part Number
0007 - 0150 Correctly shimmed (Note 1) Identify 5917130-1
0151 Correctly shimmed (Note 2) Identify 5917130-2
0152 - 0155 Correctly shimmed (Note 1) Identify 5917130-1
0156 Incorrectly shimmed (Note 3) Remove from service, modify, and identify 5917130-2

0157 - 0165 Correctly shimmed (Note 1) Identify 5917130-1
0166 - 0168 Incorrectly shimmed (Note 3) Remove from service, modify, and identify 5917130-2

0169 Correctly shimmed (Note 1) Identify 5917130-1
0170 - 0171 Incorrectly shimmed (Note 3) Remove from service, modify, and identify 5917130-2

0172 - 0173 Correctly shimmed (Note 1) Identify 5917130-1
0174 - 0175 Incorrectly shimmed (Note 3) Remove from service, modify, and identify 5917130-2

0176 - 0177 Correctly shimmed (Note 1) Identify 5917130-1
0178 - 0200 Incorrectly shimmed (Note 3) Remove from service, modify, and identify 5917130-2

0201 Correctly shimmed (Note 2) Identify 5917130-2
0202 - 0208 Incorrectly shimmed (Note 3) Remove from service, modify, and identify 5917130-2

0209 -0210 Correctly shimmed (Note 2) Identify 5917130-2
Serial number is not listed above Unknown Remove from service, modify, and identify 5917130-2

Actuator nameplate is missing Unknown Remove from service, modify, and identify 5917130-2Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 4 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. Table 2 Note 2: The noted actuators (that were manufactured by Arkwin) are correctly shimmed. These actuators have the intent of this bulletin incorporated. These production actuators may remain on the aircraft, but should be identified as part number 5917130-2. (Refer to paragraph 3. F. of this bulletin for identification instructions.) Table 2 Note 3: The noted actuators are not correctly shimmed. These actuators should be removed from service, modified, and t hen identified as part number 5917130-2. (Refer to paragraph 3. E. of this bulletin for modification instructions.) B. Concurrent Requirements (1) For the RAT part numbers listed in Table 3 of this bulletin, which contain one of the actuators listed below, Hamilton Sundstra nd Service Bulletin ERPS33T-29-5 (Modify Actuator) must be done prior to, or in conjunction with, this bulletin. - an actuator with a serial number that is not listed in Table 2 of this bulletin - an actuator with a missing nameplate - an actuator PN 5912536 (Arkwin PN 1211526-002)

Table 3

NOTE: If the actuator serial number is 0145 and prior, the deploy solenoid must be replaced.
NOTE: If the actuator serial number is 0146 and subsequent, the deploy solenoid may be modified (refer to Appendix A in Hamilton Sundstrand/Arkwin Industries CMM 29-21-04). (2) For the RAT part numbers listed in Table 4 of this bulletin, Hamilton Sundstrand Service Bulletin ERPS33T-29-6 (Replace Pump) must be done prior to, or in conjunction with, this bulletin.

Table 4 Table 3 RAT Part Numbers with a Concurrent Requirement (ERPS33T-29-5) 772722D 772722E 772722F

Table 4 RAT Part Numbers with a Concurrent Requirement (ERPS33T-29-6) 772722D 772722E 772722F 772722GOriginal Issue Date: Jun 6/14 ERPS33T-29-7 Page 5 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. C. Reason (1) The Arkwin actuator, installed on the A340-500/600 RAT, was found to potentially have an insufficient deployment solenoid stroke margin necessary to release the uplock mechanism and deploy the RAT. An investi gation, conducted by Hamilton Sundstrand and Arkwin Industries, determined that the RAT non-deployment was a result of insufficient margin of deployment solenoi d stroke. A previous modification (to address the stroke margin) was found to be inadequate in a specific group of the actuators. It created factors that can result in situations in which the solenoid stroke margin is eliminated, and failure to deploy can occur. Modification of an affected actuator (to shim the solenoid) will provide im proved reliability of the RAT. (2) This service bulletin intr oduces the new Hamilton Sundstrand RAT part number listed in Table 5 of this bulletin. This service bulletin also introduces two new actuator part numbers: Hamilton Sundstrand PN 5917130-1 and PN 5917130-2.

Table 5

D. Description (1) This bulletin gives instructions to do one of the following, depending on the part number and the serial number of the actuator: (a) Remove the actuator, modify the actuator, identify the actuator, install the actuator, identify the RAT, and test the RAT. (b) Identify the actuator and the RAT (if the intent of this bulletin has previously been incorporated). E. Compliance (1) Incorporation of this service bulletin is mandatory and is to be accomplished at the earliest opportunity. F. Approval (1) The technical content of this document is approved under the authority of DOA No. EASA.21J.031. Table 5 New Hamilton Sundstrand Part Number RAT 772722MOriginal Issue Date: Jun 6/14 ERPS33T-29-7 Page 6 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. G. Manpower (1) Depending on the part number and serial number of the actuator, the manpower requirement is one of the following: (a) Approximately 14.0 man-hours will be required to remove the actuator, identify the actuator (if required), install the act uator, identify the RAT, and test the RAT. (b) Approximately 1.0 man-hour will be required to only identify the actuator and the RAT. An additional maximum of 12.5 man-hours may be required if the unit is installed on the aircraft and must be removed to view the actuator serial number. H. Weight and Balance (1) None
I. Electrical Load Data (1) Not changed J. Software Accomplishment Summary (1) Not Applicable
K. References (1) Hamilton Sundstrand Component Maintenance Manual (CMM) 29-21-63 (2) Hamilton Sundstrand/Arkwin Industries CMM 29-21-04 (3) Hamilton Sundstrand Standard Practices Manual (SPM) 20-00-00 (4) Applicable Airbus Aircraft Maintenance Manual (AMM) (5) Hamilton Sundstrand Engineering Changes 13E677 and 14B943 (6) Equipment Definition Evolution Sheet (EDES) A345RAT01-003 (7) This service bulletin is subject to airc raft modification No. 204106 D50788 (classified major) and is covered by aircraft Service Bulletin No. A340-29-5025. (8) Under no circumstances shall the modified equipment, resulting from the application of this service bulletin, be installed on the ai rcraft type unless its aircraft service bulletin is approved.Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 7 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. L. Other Publications Affected (1) Hamilton Sundstrand CMM 29-21-63 will be revised to incorporate this bulletin. (2) Hamilton Sundstrand/Arkwin Industries CMM 29-21-04 will be revised to incorporate this bulletin. M. Interchangeability or Intermixability of Parts (1) Refer to aircraft Service Bulletin No. A340-29-5025.Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 8 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. 2. MATERIAL INFORMATION A. Material - Price and Availability (1) Arkwin Industries or Hamilton Sundstrand will incorporate this modification into returned actuators, PN 5912536 (Arkwin PN 1211526-002) or PN 5915769 (Arkwin PN 1211526-003), at no charge to the operator. (2) Operators should place a single “no charge” order to Arkwin Industries (Attention: Peter Muenzen) for their fleet requirements, noting the service bulle tin number, serial numbers of affected units, total quantity of parts, and anticipated incorporation schedule. Arkwin Industries will have a limited number of actuators in a rotable pool for operator use. These will be available to operators on a no charge loan basis (if required), based upon availability. Operators should contact Ar kwin Industries at the following address for scheduling information.
Arkwin Industries, Inc. Attention: Product Support Operations 33 Sylvester Street Westbury, New York 11590 USA Phone: (516) 333-2640 x273 Fax: (516) 333-9035 Point of Contact: Peter Muenzen, Repair Station Accountable Manager (3) It is highly recommended that the unit be shipped to Arkwin Industries in the Arkwin shipping container, PN 1211526, to minimize the risks of shipping damage. (Contact Arkwin Industries for the shipping container availability and pricing.) It is acceptable to re-use a shipping container that was delivered with a loan or advance exchange actuator. However, if the approved shipping container is not used, Arkwin will not be held accountable for any shipping damage.

Units should be returned to Arkwin Industries at the address that follows: Product Support Operations 33 Sylvester Street Westbury, NY 11590 (4) For Hamilton Sundstrand, operators should contact the Miramar Repair Station for scheduling information. For the Miramar Repai r Station contact information, operators should use the Hamilton Sundstrand website at www.utcaerospacesystems.com

. (Upon entering the website, select “Customer Service” followed by “Repair Services”. Click on the link to search for the UTC Aerospace Systems Repair Facility that can repair your part. You will be able to search based on the part number.)Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 9 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. (5) The operator will be subject to charges for work done beyond the scope of this bulletin. (This includes, but is not limited to, any parts that require repair or replacement because of wear, excessive corrosion, or mishandling.) (6) Hamilton Sundstrand will s upply the RAT nameplate required for accomplishment of this bulletin (in the shop) on a no-charge bas is to operators and customer designees. The nameplate is currently available in limited quantities (refer to Table 6 of this bulletin for the parts breakdown). Operators and cu stomer designees may place a single “nocharge” order to Hamilton Sundstrand. These orders should be forwarded to the assigned Hamilton Sundstrand Commercial Sp ares Administrator (or fax to +1-860- 660-7557, if the responsible Administrator is not known). In addition, the Hamilton Sundstrand website at www.utcaerospacesystems.com can be used to contact the Commercial Spares group. Upon entering t he website, select “Customer Service” followed by “Spare Parts” for other contact and order processing options that are available. Orders must clearly reference fleet requirements; noting the service bulletin number, serial numbers of affected units, total quantity of parts, and anticipated incorporation schedule. Hamilton Sundstr and will acknowledge the order with an established delivery rate. (7) Hamilton Sundstrand will suppl y the (temporary) actuator nameplates required for accomplishment of this bulletin (on the ai rcraft) on a no-charge basis to operators and customer designees. The nameplates are current ly available in limited quantities (refer to Table 7 of this bulletin for the parts breakdown). Operators and customer designees may place a single “no-charge” order to Hamilton Sundstrand. These orders should be forwarded to the assigned Hamilton Sundstra nd Commercial Spares Administrator (or fax to +1-860-660-7557, if the responsible Ad ministrator is not known). In addition, the Hamilton Sundstrand website at www.utcaerospacesystems.com can be used to contact the Commercial Spares group. Upon entering the website, select “Customer Service” followed by “Spare Parts” for other contact and order processing options that are available. Orders must clearly reference fleet requirements; noting the service bulletin number, serial numbers of affected units, total quantity of parts, and anticipated incorporation schedule. Hamilton Sundstr and will acknowledge the order with an established delivery rate. B. Industry Support Information (1) Depending on the part number and serial number of the actuator, the industry support information is one of the following: (a) For a RAT with an actuator that must be replaced, operators will receive a maximum labor allowance of 14.0 man-hours multiplied by the operator's currentapproved hourly rate for replacement of the actuator on the aircraft and for onwing testing. (b) For a RAT with an actuator that only requires identification, operators will receive the following:

1 A maximum labor allowance of 1.0 man-hour multiplied by the operator's current approved hourly rate for identification of the actuator and the RAT.Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 10 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. 2 An additional maximum labor allowance of 12.5 man-hours multiplied by the operator's current approved hourly rate if the actuator is installed on the aircraft and must be removed to view the actuator serial number. C. Material Necessary For Each Unit (1) Refer to Hamilton Sundstrand CMM 29-21-63 and Hamilton Sundstrand/Arkwin Industries CMM 29-21-04 for expendable parts information. (2) Material to be Purchased

Table 6

Table 6 Note 1: Actuators, PN 5917130-1 and PN 5917130-2 are interchangeable.
Table 6 Note 2: Hamilton Sunds trand will supply the noted part at no charge [refer to paragraph 2.A. (6) of this bulletin for details]. The parts are only required if the RAT is in the shop. Table 6 New Parts Required for the RAT

New Part Number Keyword Old Part Number Qty Unit Price Special Instructions/ Disposition
5917130-1 5917130-2 Arkwin Actuator 5912536 5915769 1 (Note 1) Replace or modify and reidentify (refer to Table 10 of this bulletin)
771107-15 RAT Nameplate 771107-11 771107-12 771107-14 1 (Note 2) Remove old and install new or mark as necessaryOriginal Issue Date: Jun 6/14 ERPS33T-29-7 Page 11 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. Table 7

Table 7 Note 1: Hamilton Sunds trand will supply the noted (temporary) nameplate at no charge [refer to paragraph 2.A. (7) of this bulletin for details]. The (temporary) nameplate is only required if the RAT or actuator is not in the shop.

Table 8

Table 8 Note 1: Arkwin Industries or Hamilton Sundstrand will install the noted (permanent) nameplate at no charge [refer to paragraph 2.A. (1) of this bulletin for details]. The nameplate is only required if the RAT or actuator is in the shop. Table 7 New Parts Required for the Actuator (PN 5915769) (On the Aircraft)

New Part Number Keyword Old Part Number Qty Unit Price Special Instructions/ Disposition
5917130-3 (Temporary) Actuator Nameplate 1211526-218 1 (Note 1) Install new (for an actuator to be identified as 5917130-1)
5917130-4 (Temporary) Actuator Nameplate 1211526-218 1 (Note 1) Install new (for an actuator to be identified as 5917130-2)

Table 8 New Parts Required for the Actuator (In the Shop)

New Part Number Keyword Old Part Number Qty Unit Price Special Instructions/ Disposition
1722421 (Permanent) Actuator Nameplate 1211526-253 1211526-218 1 (Note 1) Remove old, mark and install new (for an actuator to be identified as 5917130-2)Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 12 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. Table 9

Table 9 Note 1: An equivalent Skydrol® resistant coating may be used. (3) Material Supplied by the Operator (a) None D. Material Necessary For Each Spare (1) The same as the material necessary for each unit.
E. Reidentified Parts (1) The following parts may be changed:

Table 10 Table 9 New Material Required

Material Name and Number Source Use Isopropyl Alcohol, TT-I-735 or ASTM D770 Commercially Available Use to clean the nameplate mounting area and nameplate Clear Polyurethane Coating, 683-3-2/X-310A (Note 1) AKZO Coatings Inc. (CAGE Code 98502) If necessary, use to seal the edges of the nameplate

Table 10 Reidentified Parts
Old Part Number Keyword New Part Number
5912536 (Arkwin PN 1211526-002) Actuator 5917130-2

5915769 (Arkwin PN 1211526-003) Actuator (Refer to Table 2 of this bulletin)Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 13 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. (2) Incorporation of this bulletin advances the RAT part numbers as follows (refer to Table 11 and paragraph 3. J. of this bulletin).

Table 11

F. Tooling - Price and Availability (1) No tooling other than that required for shop maintenance of the RAT is required to do this modification. Table 11 RAT Part Number Changes
Old Part Number: New Part Number:
772722H
772722M 772722J
772722LOriginal Issue Date: Jun 6/14 ERPS33T-29-7 Page 14 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. 3. ACCOMPLISHMENT INSTRUCTIONS
A. General
CAUTION: THE RAT CONTAINS DESIGN CRITICAL CHARACTERISTICS, PROCESSES, AND PROCEDURES. THE DESIGN CRITICAL CHARACTERISTICS ARE IDENTIFIED WITH THE SYMBOL >>DCC<<. REFER TO THE INTRODUCTION SECTION OF HAMILTON SUNDSTRAND CMM 29-21-63 FOR A COMPLETE EXPLANATION OF DESIGN CRITICAL CHARACTERISTICS. (1) The facility performing the work (user) s hould obtain the material safety data sheets [Occupational Safety and Health Act (O SHA) Form 20 or equivalent] from the manufacturers or suppliers of materials to be used. The user must become completely familiar with the manufacturer/supplier information and adhere to the procedures, recommendations, warnings, and cautions of the manufacturer/supplier for the safe use, handling, storage, and disposal of these materials. The user should also read the long version of the warnings contained in this bulletin. The long version warnings are contained in Hamilton Sundstrand Warnings Registry SPM 20-00-04 available free of charge to all organizations that are on di stribution for this bulletin. The Warnings Registry SPM 20-00-04 is also available at myhs.hamiltonsundstrand.com

. B. Check (Actuator Serial Number) (1) View the serial number on the actuator nameplate (refer to Figure 1 of this bulletin for the location of the nameplate). (a) If necessary, remove the actuator from the RAT to view the actuator serial number (refer to paragraph 3. C. or 3. D. of this bulletin). (2) If the actuator requires only identification (the intent of this bulletin has been incorporated) (refer to Table 2 of this bulletin), proceed to paragraph 3. F. of this bulletin. (3) If the actuator requires modification (refer to paragraph 1.A. (2) of this bulletin), do the following: (a) If installed, remove the actuator from the RAT (refer to paragraph 3. C. or 3. D. of this bulletin) and then proceed to paragraph 3. E. of this bulletin.Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 15 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. C. Actuator Removal (On the Aircraft) (1) If the RAT is on the aircraft, remove the actuator, PN 5912536 (Arkwin PN 1211526-002) or PN 5915769 (Arkwin PN 1211526-003), from the RAT (refer to the applicable Airbus AMM). D. Disassembly (Off the Aircraft) (1) If the RAT is off the aircraft, remove the actuator (265 or -265A, IPL Figure 1, Hamilton Sundstrand CMM 29-21-63) from the RA T (refer to CMM 29-21-63, DISASSEMBLY).
E. Actuator Modification
NOTE: The actuator [refer to paragraph 1.A. (2) of this bulletin] should be returned to Arkwin Industries or Hamilton Sundstrand for modification (refer to paragraph 2. A. of this bulletin for details). (1) If the actuator is part number 5912536 (Arkwin PN 1211526-002), if the actuator serial number is not listed in Table 2 of this bulletin, or if the actuator nameplate is missing, Arkwin Industries or Hamilton Sundstrand will modify units t hat are in serviceable condition (refer to Hamilton Sundstrand/Arkwin Industries CMM 29-21-04, APPENDIX A), except as follows: (a) Use the new nameplate (PN 1722421) in place of the nameplate (-450, IPL Figure 1001, CMM 29-21-04). (b) Change the Hamilton Sundstrand part number of the actuator from 5912536 to 5917130-2. (2) If the actuator is part number 5915769 (Arkwin PN 1211526-003), Arkwin Industries or Hamilton Sundstrand will shim the solenoids of units that are in serviceable condition, test the actuator and identify the actuator (refer to Hamilton Sundstrand/Arkwin Industries CMM 29-21-04, APPENDIX A), except as follows: (a) If marked with ink on the housing, remove the Hamilton Sundstrand part number 5915769, Arkwin part number 1211526-003, and amendment letter “D” markings from the housing. (b) Use the new nameplate (PN 1722421) in place of the nameplate (-450A, IPL Figure 1001, CMM 29-21-04). (c) Change the Hamilton Sundstrand part number of the actuator from 5915769 to 5917130-2.Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 16 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. F. Actuator Identification (1) Identify the actuator as follows and then proceed to paragraph 3. G. of this bulletin.
NOTE: Refer to Table 2 of this bulletin to determine if the actuator should be identified as part number 5917130-1 or 5917130-2. (a) If the actuator is installed on the aircraft, do the following:
1 Install a new (temporary) nameplate on the actuator housing as follows (refer to Figure 1 of this bulletin for the location to install the nameplate). - Use nameplate, PN 5917130-3, for actuators to be identified as part number 5917130-1. - Use nameplate, PN 5917130-4, for actuators for actuators to be identified as part number 5917130-2. WARNING: USE ISOPROPYL ALCOHOL, TT-I-735 OR ASTM D770, CORRECTLY. ISOPROPYL ALCOHOL IS FLAMMABLE, EXPLOSIVE, AND A MILD POISON. IT CAN HAVE A BAD EFFECT ON YOUR HEALTH OR SAFETY. BEFORE YOU USE THE ALCOHOL, GET THE MATERIAL SAFETY DATA SHEET FROM THE MANUFACTURER OR SUPPLIER OF THE MATERIAL AND READ IT CAREFULLY. READ THE DETAILED WARNING, W0046SE, IN THE WARNING REGISTRY SPM 20-00-04. BEFORE YOU USE THE ALCOHOL, PUT ON CHEMICAL-SPLASH GOGGLES. MAKE SURE THAT YOU HAVE SUFFICIENT AIRFLOW TO KEEP THE ALCOHOL FUMES BELOW THE MATERIAL SAFETY DATA SHEET LIMIT.

a Use a clean, lint-free cloth, soaked in isopropyl alcohol (TT-I-735 or ASTM D770), to clean the surface where the new nameplate will be installed.
b Let the cleaned surface air dry for 10 minutes minimum.

c Remove the paper backing and install the new nameplate. Press firmly to remove any air pockets.Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 17 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. WARNING: USE ISOPROPYL ALCOHOL, TT-I-735 OR ASTM D770, CORRECTLY. ISOPROPYL ALCOHOL IS FLAMMABLE, EXPLOSIVE, AND A MILD POISON. IT CAN HAVE A BAD EFFECT ON YOUR HEALTH OR SAFETY. BEFORE YOU USE THE ALCOHOL, GET THE MATERIAL SAFETY DATA SHEET FROM THE MANUFACTURER OR SUPPLIER OF THE MATERIAL AND READ IT CAREFULLY. READ THE DETAILED WARNING, W0046SE, IN THE WARNING REGISTRY SPM 20-00-04. BEFORE YOU USE THE ALCOHOL, PUT ON CHEMICAL-SPLASH GOGGLES. MAKE SURE THAT YOU HAVE SUFFICIENT AIRFLOW TO KEEP THE ALCOHOL FUMES BELOW THE MATERIAL SAFETY DATA SHEET LIMIT.
d Use a clean lint-free cloth, soaked wi th isopropyl alcohol (TT-I-735 or ASTM D770), to clean the surface of the new nameplate and the surrounding mounting area. WARNING: COATING, POLYURETHANE, CLEAR, IS TOXIC ANDFLAMMABLE. DO NOT BREATHE VAPORS. USE IN WELLVENTILATED AREA FREE FROM SPARKS, FLAME, OR HOT SURFACES. PUT ON SPL ASH GOGGLES, SOLVENTRESISTANT GLOVES, AND OTHER PROTECTIVE GEAR. IN CASE OF EYE CONTACT, FLUSH WITH WATER FOR 15 MINUTES AND SEEK MEDICAL ATTENTION. IN CASE OF SKIN CONTACT, WASH WITH SOAP AND WATER.

e Apply clear polyurethane coating (P N 683-3-2/X-310A or equivalent) on the edges of the nameplate.
f Let the coating cure according to the manufacturer’s instructions.
NOTE: The next time the actuator is in the shop, the temporary nameplate must be replaced with a permanent nameplate (PN 1722421).
2 Mark out the part numbers on the existing actuator nameplate (refer to Figure 1 of this bulletin for the loca tion of the existing nameplate). (b) If the actuator is in the shop, remove the existing nameplate (-450 or -450A, IPL Figure 1001, CMM 29-21-04) and install a new (permanent) nameplate (PN 1722421) as follows (refer to SPM 20-00-00, ASSEMBLY, and Figure 1 of this bulletin).

1 Mark the number 2 after the part number 5917130- on the new nameplate (PN 1722421).
2 If necessary, transfer any pertinent info rmation from the existing nameplate (-450 or -450A) to the new nameplate (PN 1722421) before replacement.Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 18 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. G. Assembly (Off the Aircraft) (1) If the RAT is off the aircraft, install (if removed) the actuator (PN 5917130-1 or PN 5917130-2) on the RAT (refer to Hamilton Sundstrand CMM 29-21-63, ASSEMBLY). H. Actuator Installation (On the Aircraft) (1) If the RAT is on the aircraft, install (if removed) the actuator (PN 5917130-1 or PN 5917130-2) on the RAT (refer to the applicable Airbus AMM).
I. Test
NOTE: No test is necessary if the intent of this bulletin had previously been incorporated and the actuator was not removed from the RAT to view the actuator serial number. (1) If the RAT is in the shop, do a test of the RAT (refer to Hamilton Sundstrand CMM 29-21-63, TESTING AND FAULT ISOLATION). (2) If the RAT is on the aircraft, do a test of the RAT (automatic and manual deployment) (refer to the applicable Airbus AMM). (3) If the actuator was replaced while the RAT was off the aircraft, test the RAT upon installation on the aircraft (refer to the applicable AMM). J. RAT Identification (On the Aircraft)
NOTE: Replacement of the RAT nameplate on the aircraft should be avoided. If a nameplate is not installed correctly (using the instructions in the CMM), it can come loose. This can result in a missing nameplate.
NOTE: If the RAT nameplate is missing, operators should contact Hamilton Sundstrand for a replacement part.
NOTE: If additional information is required to mark the RAT nameplate, operators should contact the following Hamilton Sundstrand Service Engineer: Greg Kuczek Phone: +1-815-226-6581 Fax: +1-860-660-4995 E-Mail: gregory.kuczek@utas.utc.comOriginal Issue Date: Jun 6/14 ERPS33T-29-7 Page 19 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. (1) If the RAT is on the aircraft, identify the RAT as follows: (a) Use a ball point pen (or an equivalent permanent marking method) to change the part number (of the RAT) on the RAT nameplate as shown in Table 12 of this bulletin. (Refer to Figure 1 of this bulletin for the lo cation of the RAT nameplate).

Table 12

(b) Put a mark through the part number bar code on the RAT nameplate. (c) Use a ball point pen (or an equivalent permanent marking method) to mark the symbol 29-7 on the RAT nameplate. (Refer to Figure 1 of this bulletin for the location of the nameplate).
NOTE: The next time the modified RAT is in the shop, the existing nameplate must be replaced with a new nameplate (refer to Table 13 of this bulletin and Hamilton Sundstrand CMM 29-21-63, REPAIR). K. RAT Identification (In the Shop) (1) Identify the RAT as follows (refer to SPM 20-00-00, ASSEMBLY): (a) Replace the nameplate as follows:
NOTE: Incorporation of this bulletin advances the RAT part number (refer to Table 13 of this bulletin).
NOTE: Transfer any pertinent information from the existing nameplate to a new nameplate (refer to Table 13 of this bulletin).
1 Use a ball point pen (or an equivalent permanent marking method) to mark the symbol 29-7 on the RAT nameplate.
NOTE: Replace the existing nameplate wi th the new nameplate (refer to Table 13 of this bulletin and CMM 29-21-63, REPAIR). Table 12 RAT Part Number Changes
Old Part Number: New Part Number:
772722H
772722M 772722J
772722LOriginal Issue Date: Jun 6/14 ERPS33T-29-7 Page 20 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. Table 13 Table 13 RAT Identification

From Part Number To Part Number Existing Nameplate Part Number New Nameplate Part Number

772722H
772722M 771107-11 (-405E, IPL Figure 1)

771107-15 772722J 771107-12 (-405F)

772722L 771107-14 (-405G)Original Issue Date: Jun 6/14 ERPS33T-29-7 Page 21 

# SERVICE BULLETIN Hamilton Sundstrand Corporation, a UTC Aerospace Systems Company

UTC AEROSPACE SYSTEMS PROPRIETARY - Subject to the restriction on the title or cover page. Subject to the EAR - See the Title, First, or Cover Page for more information. Figure 1

Figure 1 Actuator and RAT Identification SB-ERPS33T297-118097 ARKWIN ACTUATOR

A

A

VIEW A-A (ACTUATOR SHOWN REMOVED) LOCATION TO INSTALL (TEMPORARY) ACTUATOR NAMEPLATE B

B

VIEW B-B (ACTUATOR SHOWN REMOVED) RAT NAMEPLATE (SHOWN REMOVED)

LOCATION OF (EXISTING) ACTUATOR NAMEPLATE