# Technify Motors (Thielert) Service Bulletin TMG 125-1018: No revision named - Rights: © Technify Motors (Thielert). Filed by the FAA in regulations.gov docket FAA-2015-1383; AD 2015-21-01 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication. - Document: [Technify Motors (Thielert) Service Bulletin TMG 125-1018](https://openairdocs.org/service-documents/technify/tmg125-1018.md) - Title as filed: U.S. DOT/FAA - SB TMG 125-1018 P1 - Revi 1 - Pages: 2 - PDF: https://openairdocs.org/files/sha256/48/42/4842c86376740d2bf6673609046a82bad632fe48e5e35709f3b951cf3f2cad89 - Page: https://openairdocs.org/service-documents/technify/tmg125-1018/file/4842c8637674 ## Text 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) Technify Motors GmbH Tel: +49 37204 696 0 Technify Motors Platanenstrasse 14 www.centurion-engines.com Fax: +49 37204 696 2912 09356 Sankt Egidien, Germany into@centurion-engines.com SB TMG 125-1018 P1, Rev. 1 SERVICE BULLETIN PRIORITY 1 - SAFETY Service Bulletin No. / SB TMG 125-1018 P1, Revision 1 / February 05, 2015 Date: Subject: Start Monitoring Loom and Mapping Type affected: TAE 125-02-99 and TAE 125-02-114 Models affected: All engines with Dual Mass Flywheel (DMF) Classification: Category P1 - SAFETY Time of Compliance: Measures have to be accomplished within the next 100 flight hours or with the next inspection, whichever occurs first. Reason: Cases of a broken gearbox drive shaft were reported to Technify Motors GmbH. Investigations showed a possible overload of the gearbox drive shaft during starting of the engine or during restarting of the engine in- flight. Correction: • Installation of a start phase monitoring system in accordance with IM-02-02, Chapter 13.08.16, Issue 4, Revision 1 or later approved revisions. • Installation of the latest Firmware / Software Mapping in accordance with TM TAE 000-0007 Revision 28 or later approved revisions. • Note: Please observe applicable published aircraft service bulletins for further instructions: • SB TMG 601-1007 P1, revision 3 or later approved revisions (for Cessna 172) • SB TMG 651-1004 P1, revision 2 or later approved revisions (for Piper PA28) • SB TMG 691-1002 P1, revision 2 or later approved revisions (for DA40 D with TAE 125-02-114 engine) • MSB D4-097/2 or later approved revisions (for DAI DA40 D) • MSB 42-109/1 or later approved revisions (for DAI DA42) • SB 141201, revision 1 or later approved revisions (for DR400) Checked Mats dar Approved B. Metzdorf, CVE D. Hartung, Office of Airworthiness Replaces Service Bulletin No. / Date: SB TMG 125-1018 P1, Initial Issue / December 02, 2014 Page 1 / 2 ### Page 2 (No text on this page.) --- 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.