[Correction] Reciprocating Engine — Valve Push Rod Assembly — Inspection / Replacement
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must visually inspect valve push-rod ball sockets on Group 1 engines within specified flight hour or calendar time limits, replacing any valve push-rods exhibiting black surface wear before next flight. Installation of valve push-rods manufactured between June 8, 2016, and October 2, 2017, is prohibited on all engines. Compliance deadlines vary by engine flight hours but generally require action within three months or 10 flight hours after the directive's effective date of October 27, 2017.
Summary
EASA Airworthiness Directive 2017-0208 is a corrective directive addressing inspection and replacement of valve push-rod assemblies on BRP-Rotax 912 and 914 series reciprocating engines. It applies to multiple Rotax 912 and 914 engine variants installed on various light aircraft models. The directive mandates inspection for wear caused by manufacturing defects in valve push-rod assemblies produced between June 8, 2016, and October 2, 2017, to prevent engine power loss and potential forced landings.
What changed
This directive introduces a one-time inspection requirement for valve push-rod ball sockets on affected Rotax 912 and 914 engines and mandates replacement of any defective parts found. It also prohibits installation of valve push-rods manufactured within the specified defective production period. The document corrects the ATA chapter number from the original issuance.
Why it matters
This directive is critical for aviation professionals to ensure engine reliability and safety by detecting and correcting potential valve train malfunctions that could cause engine power loss. Operators and maintenance organizations must comply to avoid in-flight engine issues that could lead to forced landings and damage. Compliance ensures continued airworthiness and regulatory adherence for affected aircraft.
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- EASA SIB 2014-34Possible Exceedance of Engine Temperature Limits of BRP-Powertrain Rotax 912 and 914 EnginesDec 23, 2014
- EASA SIB 2014-31BRP-Powertrain Rotax 912 and 914 Engines Carburettor Float Non-ConformityNov 7, 2014
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