# Airbus Canada Service Bulletin BD500-274006 Copy: Revision 001 ("BD500-274006 Issue 001"), 16 pages: PDF https://openairdocs.org/files/sha256/96/5e/965e388c6a9ebf3545da6166a27d82f173b7351252da4378afe782ad7d747b79; text https://openairdocs.org/service-documents/airbus-canada/bd500-274006/file/965e388c6a9e.md. Rights: © Airbus Canada Limited Partnership. Filed by the FAA in regulations.gov docket FAA-2024-1893, the docket of AD 2025-03-05. Not covered by OpenAirDocs’ CC0 dedication. ## Details - Manufacturer: [Airbus Canada](https://openairdocs.org/service-documents/airbus-canada.md) - Type: Service bulletin (Service Bulletin) - Number: BD500-274006 - Latest revision known: BD500-274006, Issue 001, dated June 29, 2023 (OpenAirDocs) - Page: https://openairdocs.org/service-documents/airbus-canada/bd500-274006 ## ADs that cite it (1) (OpenAirDocs) Newest first, with the revision each names, as OpenAirDocs read it from the AD's text. - [AD 2025-03-05](https://openairdocs.org/ad/2025-03-05.md), effective Mar 21, 2025: Revision 001 ## Text (16 pages) Rights: © Airbus Canada Limited Partnership. Filed by the FAA in regulations.gov docket FAA-2024-1893, the docket of AD 2025-03-05. Not covered by OpenAirDocs’ CC0 dedication. This text is OCR from a scan. OCR can misread letters and numbers. Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 (OCR) BD500-274006 A220 Service Bulletin Flight Controls - Horizontal Stabilizer - Horizontal Stabilizer Trim Actuator (HSTA) Lubrication Interval Reduction BD500-274006 Issue No. 001 Copyright © 2023 Airbus Canada Limited Partnership All rights reserved. No part of this work may be reproduced or copied in any form or by any means without written permission of Airbus Canada Limited Partnership. The Airbus and A220 logos are registered trademarks of Airbus Canada Limited Partnership. The information, technical data and the designs disclosed herein are the exclusive property of Airbus Canada Limited Partnership or contain proprietary rights of others and are not to be used or disclosed to others without the written consent of Airbus Canada Limited Partnership. The recipient of this document, by its retention and use, agrees to hold in confidence the technical data and designs contained herein. The foregoing shall not apply to persons having proprietary rights to such information, technical data or such designs to the extent that such rights exist. Manufacturer: Airbus Canada Limited Partnership AIRBUS 13100 Henri-Fabre Blvd., Mirabel, Quebec Customer Services Canada J7N 3C6 2023-06-29 Page 1 ### Page 2 (OCR) BD500-274006 A220 Intentionally left blank 2023-06-29 Page 2 ### Page 3 (OCR) BD500-274006 A220 Table of contents The listed documents are included in Issue 001, dated 2023-06-29, of this publication. Document title Data module code Issue date Applicable to Flight Controls - Horizontal Stabilizer - BD500-A-J27-40-06-00AAA-930A-A 2023-06-29 50001-50090, Horizontal Stabilizer Trim Actuator (HSTA) 55001-55409 Lubrication Interval Reduction - Service Horizontal Stabilizer Trim Actuator BD500-A-J27-40-06-01AAA-933A-A 2023-06-29 50001-50090, (HSTA) Lubrication Interval Reduction - 55001-55409 Accomplishment instruction 2023-06-29 Page 1 ### Page 4 (OCR) BD500-274006 A220 Intentionally left blank 2023-06-29 Page 2 ### Page 5 (OCR) BD500-274006 A220 Flight Controls - Horizontal Stabilizer - Horizontal Stabilizer Trim Actuator (HSTA) Lubrication Interval Reduction - Service Bulletin Applicability: 50001-50090, 55001-55409 Table of contents Page Flight Controls - Horizontal Stabilizer - Horizontal Stabilizer Trim Actuator (HSTA) Lubrication Interval Reduction - Service Bulletin. References.. Service Bulletin Common information.. 1 Maintenance Publications.. 5 2 Operational Publications. List of tables Page References... 1 References Table 1 References Data Module/Technical Publication Title BD500-A-J12-20-27-12AAA-240B-A Horizontal stabilizer trim actuator ballscrew assembly - Lubrication BD500-A-J27-40-06-01AAA-933A-A Horizontal Stabilizer Trim Actuator (HSTA) Lubrication Interval Reduction - Accomplishment instruction Service Bulletin Common information THIS SERVICE BULLETIN IS SENT TO EACH OPERATOR. IF THE OPERATOR HAS LEASED AIRCRAFT, SEND THE SERVICE BULLETIN TO THE LESSEE. IF THE OPERATOR HAS SOLD AIRCRAFT OR TRANSFERRED SPARES IN THE LAST SIX MONTHS, SEND THIS SERVICE BULLETIN TO THE NEW OWNER, UNLESS CONFIRMATION WAS RECEIVED THAT AIRBUS HAS INCLUDED THE NEW OPERATOR ON THE DISTRIBUTION LIST. Management information Compliance category: Mandatory (Service bulletin must be accomplished) Task category: Maintenance Original issue date: 2023-06-29 Impact list None See applicability on the BD500-A-J27-40-06-00AAA-930A-A first page of the DM BD500-A-J27-40-06-00AAA-930A-A 2023-06-29 Page 1 ### Page 6 (OCR) BD500-274006 A220 Accomplishment limits Time compliance: Basic limit Remarks: Refer to the Compliance section of the Planning Information section. Replacement service bulletin None Revision information Initial issue Summary Applicability BD-500-1A10, Aircraft 50001 thru 50090 BD-500-1A11, Aircraft 55001 thru 55409 Reason It is possible that water gets in the primary ball nut and/or secondary nut housing of the Horizontal Stabilizer Trim Actuator (HSTA) ballscrew assembly. If this occurs, there is a risk of seizure or jamming of the HSTA. Description The aircraft is put in standard configuration for maintenance. The aft equipment compartment door is opened. The lubrication of the HSTA ballscrew assembly is done. The aft equipment compartment door is closed. Concurrent requirements None Manpower It will take an estimated 1.5 h to complete this service bulletin. Material information For a list of consumables, refer to the different tasks that are given as references in this service bulletin. Planning information Applicability Aircraft affected: AIRCRAFT MODEL SERVICE AIRCRAFT SERIAL PRODUCTION AIRCRAFT NUMBER SERIAL NUMBERS BD-500-1A10 50001 thru 50090 There is no production effec- tivity. See applicability on the BD500-A-J27-40-06-00AAA-930A-A first page of the DM BD500-A-J27-40-06-00AAA-930A-A 2023-06-29 Page 2 ### Page 7 (OCR) BD500-274006 A220 BD-500-1A11 55001 thru 55409 There is no production effec- tivity. The instructions in this service bulletin are only applicable to the systems and parts installed at the time of delivery of the aircraft or as changed by Airbus Service Bulletins. Before you do this service bulletin, examine all Supplemental Type Certificates (STCs), Supplemental Type Approvals (STAs), or equivalent action changes to make sure that you can complete this service bulletin. Reason Problem and effect It is possible that water gets in the primary ball nut and/or secondary nut housing of the Horizon- tal Stabilizer Trim Actuator (HSTA) ballscrew assembly. If this occurs, there is a risk of seizure or jamming of the HSTA. Objective/Solution This service bulletin gives the procedure to do a reduced interval lubrication of the HSTA. This will decrease the risk of water in the HSTA ballscrew assembly and HSTA seizure or jamming. Description The aircraft is put in standard configuration for maintenance. The aft equipment compartment door is opened. The lubrication of the HSTA ballscrew assembly is done. The aft equipment compartment door is closed. Compliance Mandatory Service Bulletin COMPLIANCE INITIAL INSPECTION REPEATED INSPECTION INTERVAL Airbus recommends At 1000 flight hours or at no more than Airbus recommends that that this service bul- 1100 flight hours maximum from the ini- this service bulletin be letin be done at Initial tial release date of the service bulletin. repeated at intervals of 1000 Inspection, whichever flight hours or 12 months, comes first, unless or whichever comes first, unless otherwise directed otherwise directed by the air- by the airworthiness No later than 12 months from worthiness authority of the authority of the opera- the date of the last HSTA lubri- operator. tor 1 cation (refer to AMP BD500-A- J12-20-27-12AAA-240B-A). It is not necessary to do this service bulletin after the HSTA lubrication interval given in the Airworthiness Limitations (AWL) manual is revised with the reduced lubrication interval of 1000 flight hours or 12 months, whichever comes first. If it is not possible to complete all the instructions in this service bulletin because of the configuration of the aircraft, speak with a CRC representative at 1 866 A220 CRC (1-866-222-0272) or 1-450-476-7676 or e-mail at A220_crc@abc.airbus for analysis and to get an approved disposition to complete this service bulletin. See applicability on the BD500-A-J27-40-06-00AAA-930A-A first page of the DM BD500-A-J27-40-06-00AAA-930A-A 2023-06-29 Page 3 ### Page 8 (OCR) BD500-274006 A220 This service bulletin does not affect Airworthiness Limitations Items (ALIs) or Damage Tolerance Inspections (DTs). Concurrent requirements None Approval The technical content of this service bulletin has been approved under the authority of the TC- CA Design Approval Organization No: DAO #19-Q-02. Manpower The man-hours given below are estimates for direct labor done by an experienced crew on an aircraft prepared for maintenance. These estimates do not include the time necessary for: Administrative functions such as planning, liaising, familiarization, and report writing. Non-productive elapsed time such as rest time, having meals, and crew shift changes. Elapsed time such as for paint to dry, sealant to cure, and fuel tank venting. Preparation for modification (unless specified in the Accomplishment Instructions) such as cleaning and getting parts, tools, consumables, and ground equipment. - Quality assurance inspections, troubleshooting and/or correction of discrepancies found when a task is done. - All other activities that are not considered by Airbus as directly related to the accomplish- ment of this procedure. It will take an estimated 1.50 h to complete this service bulletin. The man-hours are divided as shown in the table that follows: TASK MAN-HOURS Job Set-Up 0.25 h Procedure 1.00 h Test 0.00 h Job Close-Up 0.25 h Weight and balance Not changed Electrical load data Not changed Referenced documentation Refer to the SB Introduction document BD500-000000 for definition or explanation of service bulletin content. See applicability on the BD500-A-J27-40-06-00AAA-930A-A first page of the DM BD500-A-J27-40-06-00AAA-930A-A 2023-06-29 Page 4 ### Page 9 (OCR) BD500-274006 A220 For Airbus reference only: Restriction and/or Special Instruction RSI C- 500-000-27-0055, Revision B For Airbus reference only: PCR 60266 Documentation affected 1 Maintenance Publications Airworthiness Limitation (AWL) 2 Operational Publications None Industry support information For aircraft under warranty and for aircraft out of warranty at the time of the initial issue date of this Service Bulletin: AIRBUS will not credit man-hours given in this Service Bulletin. They are at the expense of the operator. Material information None Accomplishment instructions BD500-A-J27-40-06-01AAA-933A-A Additional information None See applicability on the BD500-A-J27-40-06-00AAA-930A-A first page of the DM End of data module BD500-A-J27-40-06-00AAA-930A-A 2023-06-29 Page 5 ### Page 10 (OCR) BD500-274006 A220 Intentionally left blank See applicability on the BD500-A-J27-40-06-00AAA-930A-A first page of the DM BD500-A-J27-40-06-00AAA-930A-A 2023-06-29 Page 6 ### Page 11 (OCR) BD500-274006 A220 Horizontal Stabilizer Trim Actuator (HSTA) Lubrication Interval Reduction - Accomplishment instruction Applicability: 50001-50090, 55001-55409 Table of contents Page Horizontal Stabilizer Trim Actuator (HSTA) Lubrication Interval Reduction - Accomplishment instruction References Preliminary requirements.. Procedure.. General information. 2 Job set-up.. Procedure 4 Job close-up.. 5 Administrative. Requirements after job completion 5 List of tables Page 1 References.. 199925 2 Required conditions. Support equipment... 4 Consumables, materials, and expendables.. 5 Spares... 6 Required conditions... List of figures Page Horizontal Stabilizer Trim Actuator 4 References Table 1 References Data Module/Technical Publication Title BD500-A-J12-00-00-01AAA-398A-A BD500-A-J52-44-00-01AAA-540A-A BD500-A-J12-20-27-12AAA-240B-A BD500-A-J52-44-00-01AAA-740A-A Standard configuration for maintenance - Aircraft system configuration Aft equipment compartment door - Open for access procedure Horizontal stabilizer trim actuator ballscrew assembly - Lubrication Aft equipment compartment door - Close after access procedure See applicability on the BD500-A-J27-40-06-01AAA-933A-A first page of the DM BD500-A-J27-40-06-01AAA-933A-A 2023-06-29 Page 1 ### Page 12 (OCR) BD500-274006 A220 Required conditions Action/Condition None Support equipment Preliminary requirements Table 2 Required conditions Data Module/Technical publication Table 3 Support equipment Name Identification/Reference Quantity Remark None Consumables, materials, and expendables Table 4 Consumables, materials, and expendables Name Identification/Reference Quantity Remark None Spares Table 5 Spares Name Identification/Reference Quantity Remark None Safety conditions None Procedure 1 General information Note This service bulletin is classified as Mandatory or expected to be Mandatory by an Airworthiness Directive (AD). The Procedure section of the Accomplishment See applicability on the BD500-A-J27-40-06-01AAA-933A-A first page of the DM BD500-A-J27-40-06-01AAA-933A-A 2023-06-29 Page 2 ### Page 13 (OCR) BD500-274006 A220 Instructions is Required for Compliance (RC) and must be done to comply with the AD. The Job set-up and Job close-up sections, with the exception of the return-to-service tests, are recommended and can 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 section can be done and the aircraft can be put back into a serviceable condition. 2 Job set-up Note The steps in the Job set-up section of this service bulletin are recommended steps. The steps give a recommendation to get access to the work area. This recommendation is to give a safe work area and to minimize possible damage to surrounding aircraft parts. Alternative steps can be used at the discretion of the operator. 2.1 Make sure that the aircraft is in standard configuration for maintenance (refer to AMP BD500-A-J12-00-00-01AAA-398A-A). 2.2 Open the aft equipment compartment door (refer to AMP BD500-A- J52-44-00-01AAA-540A-A). Procedure 3.1 If it is not possible to complete all the instructions in this service bulletin because of the configuration of the aircraft, speak with a CRC representative at 1 866 A220 CRC (1-866-222-0272) or 1-450-476-7676 or e-mail at A220_crc@abc.airbus for analysis and to get an approved disposition to complete this service bulletin. 3.2 Do the lubrication of the Horizontal Stabilizer Trim Actuator (HSTA) ballscrew assembly (refer to AMP BD500-A-J12-20-27-12AAA-240B-A issue 012 or later). Refer to Fig. 1 See applicability on the BD500-A-J27-40-06-01AAA-933A-A first page of the DM BD500-A-J27-40-06-01AAA-933A-A 2023-06-29 Page 3 ### Page 14 (OCR) BD500-274006 A220 UPPER BALL SECONDARY BALL / NUT SEAL NUT GREASE FITTING RELIEF VALVE PRIMARY BALL NUT GREASE FITTING BOTTOM BALL NUT SEAL ICN-BD500-A-J274004-F-3AB48-65349-A-002-01 Figure 1 Horizontal Stabilizer Trim Actuator See applicability on the BD500-A-J27-40-06-01AAA-933A-A first page of the DM BD500-A-J27-40-06-01AAA-933A-A 2023-06-29 Page 4 ### Page 15 (OCR) BD500-274006 A220 4 Job close-up Note The steps in the Job close-up section of this service bulletin, except for the return- to-service tests, are recommended steps. The steps give a recommendation to install components removed during the Job set-up. This recommendation is to make sure that the aircraft is safe and ready to return to service. Alternative steps can be used at the discretion of the operator. 4.1 Remove all tools, equipment, and unwanted materials from the work area. 4.2 Close the aft equipment compartment door (refer to AMP BD500-A- J52-44-00-01AAA-740A-A). 5 Administrative When this service bulletin is completed, record in the applicable aircraft records that you have completed this service bulletin. Requirements after job completion Required conditions Table 6 Required conditions Action/Condition Data Module/Technical publication None See applicability on the BD500-A-J27-40-06-01AAA-933A-A first page of the DM End of data module BD500-A-J27-40-06-01AAA-933A-A 2023-06-29 Page 5 ### Page 16 (OCR) BD500-274006 A220 Intentionally left blank See applicability on the BD500-A-J27-40-06-01AAA-933A-A first page of the DM BD500-A-J27-40-06-01AAA-933A-A 2023-06-29 Page 6 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. 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