# ATR Service Bulletin TR 22.9: No revision named - Rights: © ATR. Filed by the FAA in regulations.gov docket FAA-2025-2554, the docket of AD 2026-08-08. Not covered by OpenAirDocs’ CC0 dedication. - Document: [ATR Service Bulletin TR 22.9](https://openairdocs.org/service-documents/atr/tr22-9.md) - Title as filed: TR 22.9 - Pages: 8 - PDF: https://openairdocs.org/files/sha256/8a/22/8a2270f4a72e851ef0e8f350c6969554720317373da44070cc60017062228c84 - Page: https://openairdocs.org/service-documents/atr/tr22-9/file/8a2270f4a72e ## Text Some pages are 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 1 revision letter DATE: September 23rd, 2024 EOS-3400/24 Subject: ATR72 Time Limits Document Temporary Revision 22.9 dated September 11th, 2024 Dear Customer, Temporary Revision 22.9 of the ATR72 Time Limits Document is issued to introduce the impacts of a safety demonstration performed for the MOD 4511 “FIRE PROTECTION – MODIFY A/C FOR CONTAINER CARRYING”. The technical content of this Temporary Revision is concentrated on: - Section 2-2 Limitations: to include a new CMR on ATA 21 for aircraft being POST 4511. Please refer to Section 0 -4 Reasons for Revision for further details on the content of this revision and to Section 0-5 §3 for the mandated Grace Period of the new CMR. For any additional information, please contact technical desk through ATRactive portal via “Request ATR”. Sincerely, ATR Scheduled Maintenance Team ### Page 2 (OCR) MEASA European Union Aviation Safety Agency MAJOR CHANGE APPROVAL 10085283 This Certificate/Approval is issued by EASA, acting in accordance with Regulation (EU) 2018/1139 on behalf of the European Union, its Member States and of the European third countries that participate in the activities of EASA under Article 129 of that Regulation and in accordance with Commission Regulation (EU) No. 748/2012 to ATR AVIONS DE TRANSPORT REGIONAL G.I.E 1 ALLEE PIERRE NADOT 31712 BLAGNAC FRANCE EASA.21J.044 and certifies that the change in the type design for the product listed below with the limitations and conditions specified meets the applicable Type Certification Basis and, if applicable, environmental protection requirements when operated within the conditions and limitations specified below: Type Certificate Number: EASA.A.084 Type Certificate Holder: ATR Type: ATR42/ATR72 Model: ATR 72-212, ATR 72-212 A Description of Design Change: Safety Demonstration to MODs 04511& 06454 The project provides the compliance demonstration to the safety demonstration for MOD 04511 and MOD 06454 with: - the creation of a CMR task for Air Conditioning system - addition of a smoke test procedure in the AFM for Fire Protection EASA Certification Basis: The Type and OSD Certification Bases (CB) for the original product remains applicable to this certificate/ approval. The requirements for environmental protection and the associated certified noise and/ or emissions levels of the product are unchanged and remain applicable to this certificate/approval without any impact on the noise database. See Continuation Sheet (s) For the European Union Aviation Safety Agency Cologne, Germany, 11 September 2024 Olivier ROBELIN Section Manager Regional Transport Aeroplanes Task Number: 60091941 ATR AVIONS DE TRANSPORT REGIONAL G.I.E - 300714 An Agency of the European Union TE.CERT.00091-005 © European Union Aviation Safety Agency. All rights reserved. ISO9001 Certified Page 1 of 2 ### Page 3 (OCR) MEASA MAJOR CHANGE APPROVAL - 10085283 European Union Aviation Safety Agency Associated Technical Documentation: ATR72 Time Limits Document TR22.9 AFM Technical Note EOO-2852/24 issue 1 dated 09 August 2024 or later revisions of the above listed document (s) approved/accepted under the EASA system. Limitations/Conditions: None - End - Task Number: 60091941 ATR AVIONS DE TRANSPORT REGIONAL G.I.E - 300714 An Agency of the European Union TE. CERT. 00091-005 © European Union Aviation Safety Agency. All rights reserved. ISO9001 Certified. Page 2 of 2 ### Page 4 ATR72 TIME LIMITS Date: September 11th, 2024 Section 0-0 Page: 1 ISSUE: TR 22.9 Printed in France ADMINISTRATIVE SECTION RECORD OF TEMPORARY REVISION REVISION N° DATE APPROVAL TR 22.9 September 2024 Refer to EASA major change approval: 10085283 dated 11 September 2024. For EASA approval on behalf of FAA , please refer to the latest issue of the “Scheduled Maintenance Manuals Index” available in ATRnavX. ### Page 5 ATR72 TIME LIMITS ADMINISTRATIVE SECTION Date: September 11th, 2024 Section 0-3 Page: 1 ISSUE: TR 22.9 Printed in France LIST OF EFFECTIVE TEMPORARY PAGES SECTIONS CHAPTER NUMBER of PAGES ISSUE 0 ADMINISTRATIVE SECTION 0-0 RECORD OF TEMPORARY REVISION 1 Sep 24 0-3 LIST OF EFFECTIVE TEMPORARY PAGES 1 Sep 24 0-4 REASONS FOR TEMPORARY REVISION 22.9 1 Sep 24 0-5 INTRODUCTION 1 Sep 24 2 CERTIFICATION MAINTENANCE REQUIREMENTS 2-2 LIMITATIONS 1 Sep 24 ### Page 6 ATR72 TIME LIMITS ADMINISTRATIVE SECTION Date: September 11th, 2024 Section 0-4 Page: 1 ISSUE: TR 22.9 Printed in France REASONS FOR TEMPORARY REVISION 22.9 GENERAL Temporary Revision 22.9 is issued to introduce a new CMR on ATA 21, applicable to ATR72-212/-212A aircraft being POST MOD 4511 “FIRE PROTECTION – MODIFY A/C FOR CONTAINER CARRYING”. The technical content of this temporary revision will be incorporated in the next normal revision of the ATR72 Time Limits Document. SUMMARY OF CHANGES SECTION 0 - ADMINISTRATIVE SECTION INTRODUCTION §3 Grace Period is updated to introduce the one associated to the new CMR 212200-2. SECTION 2 - CERTIFICATION MAINTENANCE REQUIREMENTS LIMITATIONS §1 CMR TABLES revised to introduce the following changes: ▪ CMR REF 212200-2: new task added, applicable to POST 4511 A/C o Corresponding Grace Period provided in Section 0-5, §3. REVISION CODES In text parts, a vertical bold line is added in front of new text, a double vertical line is added for revised or deleted text. Deleted text is removed at current revision. New text Revised text or Deleted text If a new section is created, no line is added. When tables for tasks are concerned, revision codes N, R and D are used in addition to revision lines to precise update: - N: new task created - R: task revised - D: task deleted. When the task is deleted, the corresponding line is struck through and removed at next revision of the concerned section. Only the codes related to the current revision are provided in the document. The codes present in the unchanged sections are removed at the current revision. When one page is revised in a section, the whole section pages are upgraded at the current revision. ### Page 7 ATR72 TIME LIMITS ADMINISTRATIVE SECTION Date: September 11th, 2024 Section 0-5 Page: 1 ISSUE: TR 22.9 Printed in France INTRODUCTION GRACE PERIOD TLD REV. SECTION ITEM APPLICABILITY GRACE PERIOD N 22.9 2-2 CMR 212200-2 Whichever occurs later of the following without exceeding the original planned date of MRBR: A. No more than 800 FH since new or since last time MRBR 212300-04 task was performed or B. Within 800 FH or 6 months since revision letter date of this TLD, whichever occurs first ### Page 8 ATR72 TIME LIMITS Date: September 11th, 2024 Section 2-2 Page: 1 ISSUE: TR 22.9 Printed in France CERTIFICATION MAINTENANCE REQUIREMENTS LIMITATIONS CMR TABLES MSI CMR REF MSI TITLE AND TASK DESCRIPTION MAX INTERVAL EFFECTIVITY N 212200-2 Operational test of air conditioning shut-off valves (13HQ and 14HQ) 800 FH POST 4511 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain, except the copies of manufacturers’ service documents, which belong to their rights holders.