EASA AD 2023-0123: Engine — Propeller Shaft — Inspection

What to do

Affected stakeholders, including military operators and maintenance organizations, should contact their respective military airworthiness authorities to obtain the applicable AD for TP400-D6 engines. They should follow the military-issued directives for inspection and maintenance of the propeller shaft. No civil compliance deadlines are provided in this document.

Summary

The document titled 'Engine — Propeller Shaft — Inspection' is an explanatory statement issued by EASA regarding the absence of an Airworthiness Directive (AD) for the Europrop International GmbH TP400-D6 engine. This engine is not currently in civil service, so no public AD exists. The document serves as an informational record intended for military airworthiness authorities and design approval holders, recommending that affected military authorities issue their own ADs for aircraft equipped with TP400-D6 engines.

What changed

This document introduces an informational Airworthiness Directive record without legally binding requirements, due to the absence of TP400-D6 engines in civil aviation. It clarifies that the applicable ADs for affected military aircraft are issued by the responsible military authorities in each country. No new compliance mandates or amendments to existing regulations are established by this document.

Why it matters

This matters because it informs aviation professionals, especially those involved with military aircraft maintenance and airworthiness, that no civil AD exists for the TP400-D6 engine. Operators and maintenance organizations must rely on military authorities for applicable directives, ensuring proper inspection and compliance within military contexts. It helps clarify regulatory responsibilities and prevents confusion about civil AD applicability.

What to do

Summary

What changed

Why it matters

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