AD 2015-02-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Thielert Aircraft Engines GmbH | Various | Airworthiness Directives; Technify Motors GmbH (Type Certificate Previously Held by Thielert Aircraft Engines GmbH) Reciprocating Engines |
Unsafe Condition
Failure of the clutch assembly due to nonconforming disk springs that received an improper heat treatment process.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace affected clutch assemblies before further flight if the engine has more than 100 hours time since new (TSN). Replace affected clutch assemblies before accumulating 100 hours TSN if the engine has less than 100 hours TSN.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight (for engines with more than 100 hours TSN) or before accumulating 100 hours TSN (for engines with less than 100 hours TSN).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Technify Motors GmbH (Type Certificate previously held by Thielert Aircraft Engines GmbH) models TAE 125-01 and TAE 125-02-99 reciprocating engines with specific part number (P/N) and serial number (S/N) clutch assemblies listed in the AD.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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