# Cameron Balloons Service Bulletin 28: Revision 3 - Rights: © Cameron Balloons. Filed by the FAA in regulations.gov docket FAA-2022-0469; AD 2022-15-02 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Cameron Balloons Service Bulletin 28](https://openairdocs.org/service-documents/cameron-balloons/sb-28.md) - Title as filed: Cameron Balloons SB28 Rev3 - Pages: 4 - PDF: https://openairdocs.org/files/sha256/f5/39/f5397e93aa3105bc724a82e21b70ad65e637d5d65fc7b8fafd7a058371a62fdf - Page: https://openairdocs.org/service-documents/cameron-balloons/sb-28/file/f5397e93aa31 ## Text Each page's text from the PDF; open the PDF at a page with #page=N. ### Page 1 Service Bulletin 28 Cameron Balloons Ltd., St Johns S treet Bedminster, Bristol BS3 4NH, United Kingdom Page 1 of 4 Template Ref: CBL/TN/FJD/2368 Issue: D Date: 30/12/2018 1. General (a) Service Bulletin No: 28 (b) Revision / Date 3 / 03-February-2021 (c) Title: Stratus Dou ble Burner, Burner Hanger Inspection (d) Description: Inspection / Replacement of Stratus Double Burner Hanger. (e) Applicability: Manuf acturers: Altisph’air, Ballons Libert sprl,  Ballonservice & Technik, Balóny Kubíček spol. s.r.o.,  Ballons Chaize, Cameron Balloons Ltd., Lindstrand Hot Air  Balloons  Ltd., Lindstrand Technologies, Llopis Balloons,  Notheisz HAB,  Nouvelle Manufacture d’Aerostats,   Schroeder Fire Balloons GmbH, Sup‐Air, Ultramagic S.A.  TCDS Numbers: Austria BA 009‐ACG, EASA.BA.003,   EASA.BA.010, EASA.BA.012, EASA.BA.013, EASA.BA.014,  EASA.BA.015, EASA.BA.016, EASA.BA.019,  EASA.BA.021,  EASA.BA.022, EASA.BA.025, EASA.BA.026, EASA.BA.030,  EASA.BA.119, EASA.BA.517, EAS.IM.BA.110 and France  No.186.  Burner Assembly Part Numbers: CB8720 & CB8721.  (f) Effectivity: All CN where Stratus Double Burners are used; burner serial number up to & including 320. Note: Applicability= All types and variants to which the change can be applied. Effectivity = Actual CN or group of CN’s to which the bulletin has been/will be applied. 2. Background: A Stratus burner hanger, CB8504, has failed in service after landing. The burner hanger faile d, leaving one burner unit detached from the load frame. Examination of our recor ds shows a small number of similar failures. The failures appear to be caused by progressive fatigue cracking of the welded joint between the central tube and the end plate of the hanger assembly An improved version of the hanger was introduced with CB8504 Issue D in 2009 which is stronger and more easily inspected. 3. Compliance (Category) and times: Required within 30 days or 10 flights. 4. Consequences of Non-Compliance (Possible): F ailure of the burner hanger may re sult in one or both cans detaching from the frame, resulting in an unsafe condition . ### Page 2 Service Bulletin 28 Cameron Balloons Ltd., St Johns Street Bedminster, Bristol BS3 4NH, United Kingdom Page 2 of 4 Template Ref: CBL/TN/FJD/2368 Issue: D Date: 30/12/2018 5. Required Action (s)): 1/ Identify the build standard of the burner hanger – see accomplishment instructions section 2; CBL/TN/DCB/3191 Issue B or later issue. 2/ If the burner hanger is identified to be issue C or earlier inspect the hanger for cracks in the weld – see accomplishment instructions Section 3: CBL/TN/DCB/3191 Issue A or later issue. 3/ Should any visible cracks be found further flight with the affected burner is not permitted. Report any observed defects to technical@cameronballoons.co.uk attaching photographs if available. Cracked hangers must not be re-welded. Repair affected burners by replacing the cracked hanger with a new issue D or later burner hanger. 4/ Record the inspection in the aircraft log-book. 5/ For burners with hanger CB8504 issue C or earlier the inspection must be repeated at each annual inspection. 6/ A number of burners were produced in 1995 / 1996 using a doubler plate to reinforce the central part of the hanger bracket (Fig 2). The welded joint is hidden by the doubler plate and therefore impossible to inspect. Hangers of this design must be replaced by a new hanger CB8504-0000 Issue D or later. Fig 1. Hanger with Weld Crack. Fig 2. Hanger with doubler plate. 6. Materials – See CBL/TN/DCB/3191 Issue A or later ### Page 3 Service Bulletin 28 Cameron Balloons Ltd., St Johns Street Bedminster, Bristol BS3 4NH, United Kingdom Page 3 of 4 Template Ref: CBL/TN/FJD/2368 Issue: D Date: 30/12/2018 7. Other Publications Affected None 8. Mass (Weight)/Balance: Not affected 9. Maintenance and Operating Instructions Not affected 10. Additional Information An improved burner hanger, CB8504-0000 Issue D or later is available for retrofit from Cameron Balloons Ltd. Fitting of the CB8504-0000 Issue D or later constitutes terminating action for the repetitive inspections required by Section 5 paragraph 5 above. The contents of this bulletin will be added to the Cameron Balloons Inspection Schedule at its next revision (Maintenance manual Section 6). This Service Bulletin (from revision 2) is linked to EASA Airworthiness Directive 2021-0042 Notes: Date: 03-02-21 Name: D J Cameron 11. Design Organisation Approval Date: 03-02-21 Name: D Boxall ### Page 4 Service Bulletin 28 Cameron Balloons Ltd., St Johns S treet Bedminster, Bristol BS3 4NH, United Kingdom Page 4 of 4 Template Ref: CBL/TN/FJD/2368 Issue: D Date: 30/12/2018 Date: 03-02-21 Name: D Boxall Note: If this Service Bulletin is or will become the subject of an Airworthiness Directive, a statement to that effect must be entered in Section 10 of this form. --- 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.