# Bombardier Service Bulletin 8-53-78 ## Copies (2) Copies the FAA filed in AD dockets on regulations.gov, newest revision first. A newer revision may exist. - Hawaii Island Air - Service Information ("Hawaii Island Air - Service Information"), 1 page: PDF https://openairdocs.org/files/sha256/0b/2f/0b2f1fe7815a24793e627cda167fa822d47e64e38a07db757308927677f46cd7; text https://openairdocs.org/service-documents/bombardier/sb-8-53-78/file/0b2f1fe7815a.md. Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2010-1157; AD 2011-09-12 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - U.S. DOT/FAA - Service Bulletin ("U.S. DOT/FAA - Service Bulletin"), 22 pages: PDF https://openairdocs.org/files/sha256/66/7c/667c81c79d5e6ff38b3cb961d45133002bb8a28e090973c5b6f14a12e2d8d9aa; text https://openairdocs.org/service-documents/bombardier/sb-8-53-78/file/667c81c79d5e.md. Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2010-1157; AD 2011-09-12 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. ## Details - Manufacturer: [Bombardier](https://openairdocs.org/service-documents/bombardier.md) - Type: Service bulletin (Service Bulletin) - Number: 8-53-78 - Latest revision known: 8-53-78, Revision D, dated July 6, 2010 (OpenAirDocs) - Page: https://openairdocs.org/service-documents/bombardier/sb-8-53-78 ## ADs that cite it (1) (OpenAirDocs) Newest first, with the revision each names, as OpenAirDocs read it from the AD's text. - [AD 2011-09-12](https://openairdocs.org/ad/2011-09-12.md), effective Jun 6, 2011: Revisions C and D ## Text (1 page) Hawaii Island Air - Service Information, the newest copy. Rights: © Bombardier Inc. Filed by the FAA in regulations.gov docket FAA-2010-1157; AD 2011-09-12 incorporates this document by reference. 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) DHC -8 (DASH 8) SERVICE BULLETIN 8-53-78 Fuselage - Installation of Drains in Windshield Lower Frames - ModSum 8Q100724 and ModSum 8Q101228. This page transmits Revision 'D' of Service Bulletin 8-53-78, pages 1 thru 18 dated 06 Jul 2010 This service bulletin is re-issued in its entirety for the reasons that follow: - the Production part of the Effectivity section is revised to replace aircraft serial number 574 with serial number 594 - the Compliance section is revised to raise the priority of this Service Bulletin from "operators discretion" to "highly recommended" and reference a recently issued Transport Canada Airworthiness Directive (AD) No. CF -2010-16 - the Material - Price and Availability section is revised to delete Modkits 8MK4025-001 and - 003. The Modkits are no longer procurable - the Reférences section is revised to include Transport Canada Airworthiness Directive CF -2010-16, convey the latest revision of the service bulletin and engineering documentation and correct one of the listed ModSums. Was 8Q10128, now 8Q101228 - the MATERIAL INFORMATION section is revised to add "NOTE 1 and NOTE 2". The new NOTES clearly define the disposition of the -001 and -003 ModKits The Compliance in the previous issues of this service bulletin is not affected by this revision. No additional rework to the aircraft is introduced by this revision. Remove Service Bulletin 8-53-78 Revision 'C' dated 29 Apr 2010 and replace with attached. Previous issues of Service Bulletin 8-53-78: Initial issue - Pages 1 thru 16 dated 23 Dec 99 Revision 'A' - Pages 1 thru 16 dated 07 Jun 2001 Revision 'B' - Pages 1 thru 16 dated 02. May 2002 Revision 'C' - Pages 1 thru 18 dated 29 Apr 2010 Revision 'D' 06 Jul 2010 --- 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.