Airworthiness Directive 2025-19555
one-timeAirworthiness Directives; Continental Aerospace Technologies GmbH Engines
What this AD requires
The FAA is adopting a new airworthiness directive (AD) for all Continental Aerospace Technologies GmbH (Continental) Model TAE 125-02- 125 engines. This AD was prompted by multiple reports of cracks in the cylinder heads, which can cause engine coolant to leak into the combustion chamber. This AD requires a one-time inspection of the engine coolant for contamination and, depending on the inspection results, replacement of the coolant and replacement of the cylinder heads. This AD also prohibits installing a cylinder head on any engine unless it is a serviceable part. The FAA is issuing this AD to address the unsafe condition on these products.
Which aircraft AD 2025-19555 applies to
Whether AD 2025-19555 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.