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Airworthiness Directive

AD 2015-02-01 80 FR 4764 Active

Federal Aviation Administration · 14 CFR part 39

Requires the same actions but expands the population of affected P/N and S/N clutch assemblies.

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FR document
2015-00991
Amendment
39-18065
Published
2015-01-29
Effective
2015-02-13
Models covered
1

Last live check: 2026-08-19

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AD

2015-02-01

FR doc 2015-00991 · 80 FR 4764

AD 2015-02-01Published 2015-01-29Effective 2015-02-13

Supersedes 2011-23-01

Supersedence is read from the Federal Register text of the newer AD — the FAA publishes no structured field for it — and names only ADs held in our index.

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 the same actions but expands the population of affected P/N and S/N clutch assemblies.

Full official abstract

We are superseding airworthiness directive (AD) 2011-23-01 for all Technify Motors GmbH (TMG) models TAE 125-01 and TAE 125-02-99 reciprocating engines with certain part number (P/N) and serial number (S/N) clutch assemblies installed. AD 2011-23-01 required replacement of certain P/N and S/N clutch assemblies. This AD requires the same actions but expands the population of affected P/N and S/N clutch assemblies. This AD was prompted by an additional report of a clutch assembly that malfunctioned due to disk springs that received a nonconforming heat treatment process. We are issuing this AD to prevent failure of the clutch assembly, which could lead to 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... Effective 2020-12-29
  2. AD 2017-19-15 Airworthiness Directives; Technify Motors GmbH Reciprocating Engines Effective 2017-10-31
  3. AD 2016-07-19 Airworthiness Directives; Technify Motors GmbH Reciprocating Engines Effective 2016-05-09
  4. AD 2015-21-01 Airworthiness Directives; Technify Motors GmbH Reciprocating Engines Effective 2015-11-27
  5. AD 2014-17-03 Airworthiness Directives; Technify Motors GmbH Reciprocating Engines Effective 2014-10-02

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) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index