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Airworthiness Directive

AD 2015-21-01 80 FR 64314 Active

Federal Aviation Administration · 14 CFR part 39

FR document
2015-26347
Amendment
39-18293
Published
2015-10-23
Effective
2015-11-27
Models covered
1
Last live check
2026-10-02

Printed from https://aircraftdirectives.com/ad/2015-21-01 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

2015-21-01

FR doc 2015-26347 · 80 FR 64314

AD 2015-21-01Published 2015-10-23Effective 2015-11-27

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires installation of a start phase monitoring system and associated specified software.

Full official abstract

We are adopting a new airworthiness directive (AD) for all Technify Motors GmbH TAE 125-02 reciprocating engines with a dual mass flywheel installed. This AD requires installation of a start phase monitoring system and associated specified software. This AD was prompted by reports of a gearbox drive shaft breaking during starting or restarting of the engine. We are issuing this AD to prevent overload and failure of the gearbox drive shaft, which could result in failure of the engine, in-flight shutdown, and loss of control of the airplane.

More directives for Thielert TAE 125

  1. AD 2020-26-06 Airworthiness Directives; Technify Motors GmbH (Type Certificate Previou... 2020-12-14
  2. AD 2017-19-15 Airworthiness Directives; Technify Motors GmbH Reciprocating Engines 2017-09-26
  3. AD 2016-07-19 Airworthiness Directives; Technify Motors GmbH Reciprocating Engines 2016-04-04
  4. AD 2015-02-01 Airworthiness Directives; Technify Motors GmbH (Type Certificate Previou... 2015-01-29
  5. AD 2014-17-03 Airworthiness Directives; Technify Motors GmbH Reciprocating Engines 2014-08-28

All Thielert TAE 125 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab)

Applies to 1 model in our index