Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 Page 1 of 28 

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

EMERGENCY HYDRAULIC POWER - RAM AIR TURBINE MODULE - CHECK/REPLACE ACTUATOR
© 2014, 2015 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’S 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’S EXPRESS WRITTEN PERMISSION IS NOT AUTHORIZED AND MAY RESULT IN CRIMINAL AND/OR CIVIL LIABILITY.
INFORMATION SUBJECT TO EXPORT CONTROL LAWS WARNING – This information is subject to the export control laws of the United States , specifically the Export Administration A ct and the Export Administration Regulations (EAR), 15 C.F.R. parts 730-774, diversion contrary to U.S. law is prohibited. The export, re- export, transfer or re-transfer of this technical data/technology to any other company, entity, person, or destination, or for any use or purpose other than that for which the technical data was originally provided is prohibited without prior written approval and authorization u nder applicable export control laws. EAR Export Classification: ECCN EAR99
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. REVISIONS Revision 1 This revision updates the identification procedure for actuators that are in the shop and deletes most references to Arkwin part numbers. It adds a list of actuators on which a permanent nameplate showing the Arkwin part number was installed under the service bulletin basic issue. It adds alternate part numbers for the temporary actuator nameplates. The intent of the following Hamilton Sundstra nd Technical Communication System (TCS) message has been incorporated in this revision: - TCS Message Number IH-141023-111752. Units previously modified according to this bulleti n do not require remodification according to this bulletin revision.Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 This bulletin has been reproduced in its entirety. Disc ard the bulletin you now hav e and replace it with this copy. The tabulation below is provided for reco rd keeping and traceability of bulletin issues.

1. PLANNING INFORMATION A. Effectivity (1) The Hamilton Sundstrand Ram Air Turbine (R AT) Modules, Model ERPS06M, all serial numbers, that are listed in Table 1 of this bulletin.

Table 1

(2) The RAT actuators that follow: (a) The actuator (PN 5913233 or PN 5913234), from the supplier Liebherr, is not affected by the deployment solenoid stro ke issue. However, when the existing Liebherr actuator must be replaced and no replacement Liebherr actuator is available, it must be replaced with a new actuator (PN 5917109-1, PN 5917109-2, or PN 1720399). (b) For an actuator PN 5915768, with a serial number that is not listed in Table 2 of this bulletin, the actuator should be removed from service, modified, and then identified as part number 5917109-2. (c) All actuators, PN 5912958, from the Supplier Arkwin, installed on RAT modules or stocked as spares, rotables, or repair parts are affected. These actuators should be removed from serv ice, modified, and then identified as part number 5917109-2. (d) All actuators PN 5915768, from the Supp lier Arkwin, installed on RAT modules or stocked as spares, rotables, or repair parts that are listed in Table 2 of this bulletin are affected. (Refer to Table 2 of this bulletin for disposition.) Issue Date Basic May 27/14 Revision 1 Apr 14/15

Table 1 RAT Module Part Number Effectivity 766351 770379A 770952D 1702934C 766351A 770952 770952E 1702934D 768084 770952A 1702934 768084A 770952B 1702934A 770379 770952C 1702934BOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 (e) If the actuator nameplate is missing, the actuator should be removed from service and returned to Liebherr Aerospace (CAGE Code VD9893) (for a Liebherr actuator) or to SR Technics (CAGE Code SB968) (for an Arkwin actuator) (refer to Figure 1 of this bulletin to identify the actuator).

1 Liebherr Aerospace should modify (if ne cessary) a Liebherr actuator (with a missing nameplate) and then identify it as part number 5913233 or 5913234. 2 SR Technics should modify (if necessary ) an Arkwin actuator (with a missing nameplate) and then identify it as part number 5917109-2.

Table 2 Table 2 Serial Numbers of Actuators (PN 5915768) from the Supplier Arkwin

Serial Numbers Description Disposition New Part Number
00003 - 00015 Correctly shimmed (Note 1) Identify 5917109-1 01500 - 01547 Correctly shimmed (Note 1) Identify 5917109-1 01548 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

01549 - 01610 Correctly shimmed (Note 1) Identify 5917109-1 01611 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

01612 - 01696 Correctly shimmed (Note 1) Identify 5917109-1 01697 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

01698 - 01760 Correctly shimmed (Note 1) Identify 5917109-1 01761 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

01762 - 01973 Correctly shimmed (Note 1) Identify 5917109-1 01974 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

01975 - 01986 Correctly shimmed (Note 1) Identify 5917109-1 01987 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

01988 - 01993 Correctly shimmed (Note 1) Identify 5917109-1Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 01994 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

01995 - 01997 Correctly shimmed (Note 1) Identify 5917109-1 01998 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

01999 - 02010 Correctly shimmed (Note 1) Identify 5917109-1 02011 - 02012 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02013 Correctly shimmed (Note 1) Identify 5917109-1 02014 - 02016 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02017 Correctly shimmed (Note 1) Identify 5917109-1 02018 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02019 Correctly shimmed (Note 1) Identify 5917109-1 02020 - 02036 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02037 Correctly shimmed (Note 1) Identify 5917109-1 02038 - 02046 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02047 Correctly shimmed (Note 1) Identify 5917109-1 02048 - 02055 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02056 Correctly shimmed (Note 1) Identify 5917109-1 02057 - 02058 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02059 Correctly shimmed (Note 1) Identify 5917109-1 02060 - 02070 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02071 Correctly shimmed (Note 1) Identify 5917109-1 Table 2 Serial Numbers of Actuators (PN 5915768) from the Supplier Arkwin (Continued)

Serial Numbers Description Disposition New Part NumberOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 02072 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02073 Correctly shimmed (Note 1) Identify 5917109-1 02074 - 02080 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02080R Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02081 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02082 Correctly shimmed (Note 1) Identify 5917109-1 02083 - 02097 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02098 Correctly shimmed (Note 1) Identify 5917109-1 02099 - 02100 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02101 Correctly shimmed (Note 1) Identify 5917109-1 02102 - 02108 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02109 Correctly shimmed (Note 1) Identify 5917109-1 02110 - 02162 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02163 Correctly shimmed (Note 1) Identify 5917109-1 02164 - 02315 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02316 Correctly shimmed (Note 1) Identify 5917109-1 02317 - 02330 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02331 Correctly shimmed (Note 1) Identify 5917109-1 02332 - 02362 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2 Table 2 Serial Numbers of Actuators (PN 5915768) from the Supplier Arkwin (Continued)

Serial Numbers Description Disposition New Part NumberOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 Table 2 Note 1: The noted actuators were modified (retrofitted) according to the instructions in Hamilton Sundstrand Service Bulletin ERPS06M-29-18 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 5917109-1. (Refer to paragraph 3. F. of this bulletin for identification instructions.) Table 2 Note 2: The noted actuators are not correctly shimmed. These actuators should be removed from service, modified, and t hen identified as part number 5917109-2. (Refer to paragraph 3. E. of this bulletin for modification instructions.) Table 2 Note 3: 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 5917109-2. (Refer to paragraph 3. F. of this bulletin for identification instructions.) B. Concurrent Requirements (1) For the RAT module part numbers listed in Table 3 of this bulletin, which contain one of the actuators listed below, Hamilton Sundstrand Service Bulletin ERPS06M-29-18 (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 5912958 02363 Correctly shimmed (Note 1) Identify 5917109-1 02364 - 02408 Incorrectly shimmed (Note 2) Remove from service, modify, and identify 5917109-2

02409 and subsequent Correctly shimmed (Note 3) Identify 5917109-2

Serial number is not listed above Unknown Remove from service, modify, and identify 5917109-2

Actuator nameplate is missing Unknown Remove from service, modify, and identify 5917109-2 Table 2 Serial Numbers of Actuators (PN 5915768) from the Supplier Arkwin (Continued)

Serial Numbers Description Disposition New Part NumberOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 Table 3

NOTE: If the actuator serial number is 01956 and prior, the deploy solenoid must be replaced. NOTE: If the actuator serial number is 01957 and subsequent, the deploy solenoid may be modified (refer to Appendix A in Hamilton Sundstrand/Arkwin Industries CMM 29-21-07). (2) For the RAT module part numbers listed in Table 4 of this bulletin, Hamilton Sundstrand Service Bulletin ERPS06M-29-19 (Check/Replace Pump) must be done prior to, or in conjunction with, this bulletin.

Table 4

C. Reason (1) The Arkwin actuator, installed on the A330/ A340 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 impr oved reliability of the RAT module. (2) If an existing Liebherr actuator (PN 5913233 or PN 5913234) must be replaced and no replacement Liebherr actuator is available, incorporation of this bulletin (to replace the actuator) is necessary. Table 3 RAT Module Part Numbers with a Concurrent Requirement (ERPS06M-29-18) 758546 764239 770952 1702934 759123 766351 770952A 1702934A 762956 768084 770952B 762973 770379

Table 4 RAT Module Part Numbers with a Concurrent Requirement (ERPS06M-29-19) 766351 770952B 768084 1702934 770379 1702934A 770952 1702934B 770952AOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 (3) This service bulletin introduces the new Hamilton Sundstrand RAT module part numbers listed in Table 5 of this bulletin. This service bulletin also introduces three new actuator part numbers: Hamilton Sundstrand PN 5917109-1, PN 5917109-2, and PN 1720399.

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 module, and test the RAT module. (b) Identify the actuator and the RAT module (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. 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 actuator, identify the RAT module, and test the RAT module. (b) Approximately 1.0 man-hour will be required to only identify the actuator and the RAT module. 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. Table 5 New Hamilton Sundstrand Part Number RAT Modules 766351B 768084B 770379B 770952F 1702934EOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 (c) For a RAT module with an actuator (PN 5913233 or PN 5913234) from the supplier Liebherr, approximately 1.0 man-hour will be required to identify the RAT. 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) 29-21-31 (2) Hamilton Sundstrand/Arkwin Industries CMM 29-21-07 (3) Hamilton Sundstrand Standard Practices Manual (SPM) 20-00-00 (4) Applicable Airbus Aircraft Maintenance Manual (AMM) (5) Hamilton Sundstrand Engineering Changes 13E535, 14A812, 14B775, 14F036, and 15B139 (6) Equipment Definition Evolution Sheets (EDES) A334RAT05-005 and A334RAT05-006 (7) This service bulletin is subject to airc raft modification No. 204067 D50787 (classified major) and is covered by aircraft Service Bulletin No. A330-29-3126, A340-29-4097. (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. L. Other Publications Affected (1) Hamilton Sundstrand CMM 29-21-31 will be revised to incorporate this bulletin. (2) Hamilton Sundstrand/Arkwin Industries CMM 29-21-07 will be revised to incorporate this bulletin. M. Interchangeability or Intermixability of Parts (1) Refer to aircraft Service Bull etin No. A330-29-3126 and A340-29-4097.Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 2. MATERIAL INFORMATION A. Material - Price and Availability (1) SR Technics or Hamilton Sundstrand will incorporate this modification into returned actuators, PN 5912958 or PN 5915768, at no charge to the operator. (2) For SR Technics, operators should place a single “no-charge” order to SR Technics (Attention: Peter Kelly) for their fleet requirements, noting the service bulletin number, serial numbers of affected units, total quantit y of parts, and anticipated incorporation schedule.
SR Technics 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 contac t SR Technics as follows for scheduling information.
Point of Contact:

(3) It is highly recommended that the unit be shipped to SR Technics in an approved shipping container (part number 1211575) to minimize the risks of shipping damage. Contact SR Technics for the shipping container (if required). It is acceptable to re-use a shipping container that was delivered from SR Technics. However, if the approved shipping container is not used, SR Technic s will not be held accountable for any shipping damage.
Units should be returned to SR Technics at the address that follows. NOTE: Each container shipped to SR Tec hnics shall be marked as follows: RAT Actuator Program SR Technics Switzerland Ltd. Hangarstrasse / Gate 140 Material Receiving SRT CH- 8302 Kloten Switzerland Point of Contact: Peter Kelly Peter Kelly RAT Actuator Program Manager SR Technics Switzerland Tel +353 86 852 7509 E-mail: peter.kelly@srtechnics.com http://www.srtechnics.comOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 (4) For Hamilton Sundstrand, operators should contact the Miramar Repair Station for scheduling information. For the Miramar Repair Station contact information, operators should use the Hamilton Sundstrand website at www.utcaerospacesystems.com

. (Upon entering the website, select “Custome r 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.) (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 supply the RAT mo dule identification and modification plates required for accomplishment of this bulleti n (in the shop) on a no-charge basis to operators and customer designees. The identification and modification plates are currently available in limited quantities (refer to Table 6 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 Sundstrand Commercial Spares 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 the website, select “Cus tomer 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 Sundstrand will acknowledge the order with an established delivery rate. (7) For a RAT module with an actuator that requires replacement, contact Hamilton Sundstrand Commercial Spares for availabili ty and pricing of a replacement actuator (PN 5917109-1, PN 5917109-2, or PN 1720399). (8) 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.Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 B. Industry Support Information (1) Depending on the part number and serial num ber of the actuator, the industry support information is one of the following: (a) For a RAT module with an actuator that must be replaced, operators will receive a maximum labor allowance of 14.0 m an-hours multiplied by the operator's current approved hourly rate for replacement of the actuator on the aircraft and for on-wing testing. (b) For a RAT module 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 module. 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) For a RAT module with an actuator (PN 5913233 or PN 5913234), from the supplier Liebherr, all costs associated wi th the replacement of the existing actuator with a new actuator (PN 5917109-1, PN 5917109-2, or PN 1720399) are at the operator’s expense. C. Material Necessary For Each Unit (1) Refer to Hamilton Sundstrand CMM 29-21-31 and Hamilton Sundstrand/Arkwin Industries CMM 29-21-07 for expendable parts information. (2) Material to be Purchased

Table 6 Table 6 New Parts Required for the RAT Module

New Part Number Keyword Old Part Number Qty Unit Price Special Instructions/ Disposition

5917109-1 5917109-2 1720399 Liebherr Actuator 5913233 5913234 1 (Note 1) Replace if required Arkwin Actuator 5912958 5915768 Replace or modify and reidentify (refer to Table 10 of this bulletin)Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 Same Modification Plate 761251 1 (Note 2) Remove old and install new or mark as necessary Same Identification Plate 755595 1 (Note 2) Remove old and install new (for RAT module PN 766351A or PN 768084A) or mark as necessary 1700217-14 Identification Plate 1700217-8 1 (Note 2) Remove old and install new (for RAT module PN 770379A) or mark as necessary 1700217-15 Identification Plate 1700217-9 1700217-10 1700217-11 1 (Note 2) Remove old and install new (for RAT module PN 770952C, 770952D, or 770952E) or mark as necessary 1700217-16 Identification Plate 1700217-6 1700217-12 1700217-13 1 (Note 2) Remove old and install new (for RAT module PN 1702934C and PN 1702934D) or mark as necessary Table 6 New Parts Required for the RAT Module (Continued)

New Part Number Keyword Old Part Number Qty Unit Price Special Instructions/ DispositionOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 Table 6 Note 1: Actuators, PN 5917109-1, PN 5917109-2, and PN 1720399, are interchangeable. The actuators are available from Hamilton Sundstrand [refer to paragraph 2.A. (7) of this bulletin].
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 module is in the shop.

Table 7

Table 7 Note 1: Hamilton Sunds trand will supply the noted (tempor ary) nameplate at no charge [refer to paragraph 2.A. (8) of this bulletin for details]. The (temporary) nameplate is only required if the RAT module or actuator is not in the shop.

Table 8

Table 8 Note 1: The noted (permanent) nameplate has been changed to remove the Arkwin part number, 1211575-002 (refer to Figure 3 ). Actuators that were modified in the shop under this bulletin before Revision 1 and were reidentified as PN 5917109-2 incorporate the earlier (permanent) nameplate that shows the referenced Arkwin part number. Refer to Table 12 for serial numbers of the actuators affected. Table 7 New Parts Required for the Actuator (PN 5915768) (On the Aircraft)

New Part Number Keyword Old Part Number Qty Unit Price Special Instructions/ Disposition
5917109-3 or alternate 1723702-1 (Temporary) Actuator Nameplate 1211575-227 1 (Note 1) Install new (for an actuator to be identified as 5917109-1) 5917109-4 or alternate 1723702-2 (Temporary) Actuator Nameplate 1211575-227 1 (Note 1) Install new (for an actuator to be identified as 5917109-2)

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

New Part Number Keyword Old Part Number Qty Unit Price Special Instructions/ Disposition
1722420 (Note 1) (Permanent) Actuator Nameplate 1211575-227 1211575-209 1 (Note 2) Remove old, mark and install new (for an actuator to be identified as 5917109-2)Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 Table 8 Note 2: SR Technics or Hamilton Sunds trand 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 module or actuator is in the shop.

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

(2) Incorporation of this bulletin advances t he RAT module part numbers as follows (refer to Table 11 and paragraph 3. J. of this bulletin). 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
5912958 Actuator 5917109-2 5915768 Actuator (Refer to Table 2 of this bulletin)Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 Table 11

F. Tooling - Price and Availability (1) No tooling other than that required for shop maintenance of the RAT module is required to do this modification. Table 11 RAT Module Part Number Changes
Old Part Number: New Part Number:
766351A 766351B 768084A 768084B 770379A 770379B 770952C 770952F 770952D 770952F 770952E 770952F 1702934C 1702934E 1702934D 1702934EOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 3. ACCOMPLISHMENT INSTRUCTIONS A. General CAUTION: THE RAT MODULE 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 29-21-31 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 H ealth Act (OSHA) 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 th is 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) If the actuator is a Liebherr actuator (PN 5913233 or PN 5913234) that does not require replacement, proceed to paragraph 3. J. of this bulletin (refer to Figure 1 of this bulletin to identify a Liebherr actuator). (2) View the serial number on the actuator identification plate (refer to Figure 2 of this bulletin for the location of the identification plate). (a) If necessary, remove the actuator from the RAT module to view the actuator serial number (refer to paragraph 3. C. or 3. D. of this bulletin). (3) 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. (4) 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 module (refer to paragraph 3. C. or 3. D. of this bulletin) and then proceed to paragraph 3. E. of this bulletin.Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 (5) If the actuator incorporates the modifications of the original issue of this service bulletin (revision Basic), no further action is necessary. NOTE: Actuators that incorporate the modifica tions of the original issue of this service bulletin are identified as PN 5917109-1 or 5917109-2. Refer to Figure 2 for the location of the (temporary) or (permanent) actuator nameplate. NOTE: The (permanent) nameplate installed on actuators that were modified in the shop and reidentified as PN 5917109-2 under the original issue of this bulletin also shows the Arkwin PN , 1211575-002, in the “Manufactured By” area of the nameplate (refer to Figure 3 ). The actuators on which this nameplate was installed are listed in Table 12

.

Table 12

C. Actuator Removal (On the Aircraft) (1) If the RAT module is on the aircraft, remove the actuator, PN 5912958 or PN 5915768, from the RAT module (refer to the applicable Airbus AMM). D. Disassembly (Off the Aircraft) (1) If the RAT module is off the aircraft, remove the actuator (-390F or -390H, IPL Figure 1, Hamilton Sundstrand CMM 29-21-31) or (110 or -110A, IPL Figure 2A) from the RAT module (refer to CMM 29-21-31, DISASSEMBLY). Table 12 Actuators, PN 5917109-2, Incorporating the Modi fications of SB ERPS06M-29-21, Revision Basic and a (Permanent) Nameplate that also Shows the Arkwin PN 1211575-002
Actuator Serial Number 0005, 01512, 01521, 01534, 01535, 01545, 01562, 01563, 01571, 01620, 01649, 01650, 01656, 01683, 01719, 01738, 01749, 01757, 01780, 01784, 01817, 01853, 01861, 01880, 01890, 01896, 01902, 01912, 01928, 01937, 01939, 01945, 01974, 01996, 02006, 02027, 02050, 02117, 02167, 02173, 02174, 02208, 02210, 02212, 02217, 02222, 02223, 02227, 02235, 02301, 02319, 02332, 02335, 02350, 02375, 02391Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 E. Actuator Modification NOTE: The actuator [ refer to paragraph 1.A. (2) of this bulletin] should be returned to SR Technics or Hamilton Sundstrand for modification (refer to paragraph 2. A. of this bulletin for details). (1) If the actuator is part number 5912958, if the actuator serial number is not listed in Table 2 of this bulletin, or if the actuator nameplate is missing, SR Technics or Hamilton Sundstrand will modify units that are in serviceable condition (refer to Hamilton Sundstrand/Arkwin Industries CMM 29-21-07, APPENDIX A), except as follows: (a) Use the new nameplate (PN 1722420) in place of the nameplate (-380, IPL Figure 1001, CMM 29-21-07). (b) Change the Hamilton Sundstrand part number of the actuator from 5912958 to 5917109-2. (2) If the actuator is part number 5915768, SR Technics or Hamilton Sundstrand will shim the solenoids of units that are in serviceabl e condition, test the actuator and identify the actuator (refer to Hamilton Sundstrand/Arkwin Industries CMM 29-21-07, APPENDIX A), except as follows: (a) If marked with ink on the housing, remove the Hamilton Sundstrand part number 5915768, Arkwin part number 1211575-002, and amendment letter “C” markings from the housing. (b) Use the new nameplate (PN 1722420) in place of the nameplate (-380A, IPL Figure 1001, CMM 29-21-07). (c) Change the Hamilton Sundstrand part number of the actuator from 5915768 to 5917109-2.Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 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 5917109-1 or 5917109-2. (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 2 of this bulletin for the location to install the nameplate). - Use nameplate, PN 5917109-3, or alternate PN 1723702-1, for actuators to be identified as part number 5917109-1. - Use nameplate, PN 5917109-4, or alternate PN 1723702-2, for actuators for actuators to be identified as part number 5917109-2. 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: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 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 and restrictions on cover (or title) page: ECCN: EAR99 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 1722420). 2 Mark out the part numbers on the existing actuator nameplate (refer to Figure 2 of this bulletin for the loca tion of the existing nameplate). (b) If the actuator is in the shop, replace the existing nameplate (-380 or -380A, IPL Figure 1001, CMM 29-21-07) with a new (permanent) nameplate (PN 1722420) as follows (refer to SPM 20-00-00, ASSEMBLY):

1 Mark the number 2 after the part number 5917109- on the new nameplate (PN 1722420). 2 Transfer the serial number and date of manufacture information from the existing nameplate (-380 or -380A) to the new nameplate (PN 1722420). 3 Mark the amendment letter D on the new nameplate (PN 1722420).Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 Page 22 

# 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 and restrictions on cover (or title) page: ECCN: EAR99 4 Install the new nameplate (PN 1722420) on the actuator (refer to CMM 29-21-07, ASSEMBLY, and Figure 2 of this bulletin). NOTE: The new nameplate must be installed on the actuator in the position and direction shown in Figure 2 so that the information can be read when the RAT module is installed in the aircraft. G. Assembly (Off the Aircraft) (1) If the RAT module is off the aircraft, install (if removed) the actuator (PN 5917109-1, PN 5917109-2, or PN 1720399) or the Liebherr actuator (PN 5913233 or PN 5913234) on the RAT module (refer to Hamilton Sundstrand CMM 29-21-31, ASSEMBLY). H. Actuator Installation (On the Aircraft) (1) If the RAT module is on the aircraft, install (if removed) the actuator (PN 5917109-1, PN 5917109-2, or PN 1720399) or the Liebherr actuator (PN 5913233 or PN 5913234) on the RAT module (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 module to view the actuator serial number. (1) If the RAT module is in the shop, do a test of the RAT module (refer to Hamilton Sundstrand CMM 29-21-31, TESTING AND FAULT ISOLATION). (2) If the RAT module 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 module was off the aircraft, test the RAT module upon installation on the airc raft (refer to the applicable AMM).Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 Page 23 

# 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 and restrictions on cover (or title) page: ECCN: EAR99 J. RAT Module Identification (On the Aircraft) NOTE: Replacement of the RAT module identif ication plate and modification plate on the aircraft should be avoided. If an identification plate or modification plate is not installed correctly (using the instructions in the CMM), it can come loose. This can result in a missing identification plate or modification plate. NOTE: If the RAT module identification plate or modification plate is missing, operators should contact Hamilton Sundstrand for a replacement part. NOTE: If additional information is required to mark the RAT module identification or modification plate, operators shoul d 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.com (1) If the RAT module is on the aircraft, identify the RAT module as follows: (a) Use a ball point pen (or an equivalent permanent marking method) to do the steps that follow. (Refer to Figure 2 of this bulletin for the location of the identification plate).

1 Change the part number (of the RAT module) on the RAT module identification plate as shown in Table 13 of this bulletin. 2 Put a mark through the part number bar code on the RAT module identification plate.

Table 13 Table 13 RAT Module Part Number Changes
Old Part Number: New Part Number:
766351A 766351B 768084A 768084B 770379A 770379B 770952C 770952F 770952D 770952F 770952E 770952F 1702934C 1702934E 1702934D 1702934EOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 Page 24 

# 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 and restrictions on cover (or title) page: ECCN: EAR99 (b) Use a ball point pen (or an equivalent per manent marking method) to mark an X through Mod Dot 21 (and Mod Dots 8, 12, 13, and 18, if not already marked) on the RAT module modification plate. (Refer to Figure 2 of this bulletin for the location of the RAT module modification plate). NOTE: The next time the modified RAT module is in the shop: 1. For RAT modules with bar-coded identification plates, the existing identification plate must be replaced with a new identification plate (refer to Table 14 of this bulletin and Hamilton Sundstrand CMM 29-21-31, ASSEMBLY). 2. The existing modification plate must be replaced with a new modification plate (PN 761251) (refer to Hamilton Sundstrand CMM 29-21-31, ASSEMBLY). K. RAT Module Identification (In the Shop) (1) Identify the RAT module as follow s (refer to SPM 20-00-00, ASSEMBLY): (a) Replace the identification plate as follows: NOTE: Incorporation of this bulletin advances the RAT module part number (refer to Table 14 of this bulletin). 1 Transfer any pertinent information from the existing identification plate to a new identification plate (refer to Table 14 of this bulletin). 2 Replace the existing identification plat e with the new identification plate (refer to Table 14 of this bulletin and CMM 29-21-31, ASSEMBLY). (b) Replace the modification plate (555, IPL Figure 1, CMM 29-21-31) or (350, IPL Figure 1A,) as follows:

1 Mark the applicable new RAT module part number (refer to Table 14 of this bulletin) on a new modification plate (555, IPL Figure 1) or (350, IPL Figure 1A). 2 Transfer any pertinent information from the existing modification plate to the new modification plate (555, IPL Figure 1) or (350, IPL Figure 1A). 3 Mark an X through Mod Dot 21 (and Mod Dots 8, 12, 13, and 18, if not already marked) on the new modification plate (555, IPL Figure 1) or (350, IPL Figure 1A). 4 Replace the existing modifi cation plate with the new modification plate (555, IPL Figure 1) or (350, IPL Figure 1A).Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 Page 25 

# 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 and restrictions on cover (or title) page: ECCN: EAR99 Table 14 Table 14 RAT Module Identification

From Part Number To Part Number Existing Identification Plate Part Number New Identification Plate Part Number
766351A 766351B 755595 (540, IPL Figure 1, CMM 29-21-31) 755595
768084A 768084B 755595 (540) 755595
770379A 770379B 1700217-8 (-540E) 1700217-14
770952C 770952F 1700217-9 (-540F) 1700217-15 770952D 770952F 1700217-10 (-540G) 1700217-15 770952E 770952F 1700217-11 (-540H) 1700217-15 1702934C 1702934E 1700217-12 (-360C, IPL Figure 1A) 1700217-16 1702934D 1702934E 1700217-13 (-360D) 1700217-16Original Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 Page 26 

# 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 and restrictions on cover (or title) page: ECCN: EAR99 Figure 1

Figure 1 Identification of the Actuator SB-ERPS06M2121-117033 ACTUATOR FROM THE SUPPLIER ARKWIN

ACTUATOR FROM THE SUPPLIER LIEBHERR

LOCATION OF NAMEPLATEOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 Page 27 

# 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 and restrictions on cover (or title) page: ECCN: EAR99 Figure 2

Figure 2 Actuator and RAT Module Identification SB-ERPS06M2921-116791-A VIEW A-A (ACTUATOR SHOWN REMOVED) LOCATION OF THE (EXISTIN G) ACTUATOR NAMEPLATE. IF REPLACING WITH A NEW (PERMANENT) ACTUATOR NAMEPLATE, INSTALL SO THAT THE PART NUMBER AND SERIAL NUMBER CAN BE SEEN FROM THE SIDE OF THE ACTUATOR SHOWN IN THIS VIEW. SEE DETAIL B FOR MORE INFORMATION ON THE CORRECT INSTALLATION. LOCATION TO INSTALL THE (TEMPORARY) ACTUATOR NAMEPLATE IF THE ACTUATOR IS NOT REMOVED FROM THE RAT MODULE RAT MODULE MODIFICATION PLATE RAT MODULE IDENTIFICATION PLATE A

A ARKWIN ACTUATOR

DETAIL B INSTALL THE NAMEPLATE IN THE DIRECTION SHOWN

F W

D

FWD

FWD BOriginal Issue Date: May 27/14 Revision 1: Apr 14/15 ERPS06M-29-21 Page 28 

# 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 and restrictions on cover (or title) page: ECCN: EAR99 Figure 3

Figure 3 Change in the New (Permanent) Nameplate, PN 1722420 SB-ERPS06M2921-121222 DMF SER AMENDT 5917109-
P/N 1211575-002 Manufactured By: INSPECT ARKWIN INDUSTRIES WESTBURY NY US CAGE 98391 

## ACTUATOR-RAT HAMILTON SUNDSTRAND ROCKFORD IL US CAGE 99167 PERMANENT NAMEPLATE INSTALLED IN SB ERPS 06M-29-21, REVISION BASIC (ORIGINAL ISSUE) (REFER TO TABLE 12 IN THIS SERVICE BULLETIN FOR ACTUATOR SERIAL NUMBERS)

ARKWIN PART NUMBER SHOWN

DMF SER AMENDT 5917109- Manufactured By: INSPECT ARKWIN INDUSTRIES WESTBURY NY US CAGE 98391 

## ACTUATOR-RAT HAMILTON SUNDSTRAND ROCKFORD IL US CAGE 99167 PERMANENT NAMEPLATE TO BE INSTALLED IN SB ERPS06M-29-21, REVISION 1 [REFER TO PARAGRAPH 3.F.(1)(b) IN THIS SERVICE BULLETIN]

ARKWIN PART NUMBER REMOVED