Engine – Centrifugal Compressor Case – Inspection
Superseded. Comply with 2024-0194, which replaces this document.
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected M601 engines must perform the detailed visual inspection within 10 flight hours or 30 days from 12 February 2024, whichever occurs first. If cracks are found, corrective actions must be taken before further flight, including contacting GE Aviation Czech or replacing the part. Inspection results must be reported to the manufacturer within 30 days, and installation of affected parts is prohibited unless cleared by inspection.
Summary
EASA Airworthiness Directive 2024-0040-E is an emergency directive addressing a potential unsafe condition in GE Aviation Czech M601 series engines installed on various aircraft including the LET L-410, Air Tractor AT series, Grumman G-164, and others. The directive mandates inspection of the centrifugal compressor case for cracks and restricts installation of affected parts. It applies to engines with specific part numbers M601-154.55 and M601-154.65 unless previously inspected and cleared.
What changed
This new emergency airworthiness directive introduces a mandatory one-time detailed visual inspection of the centrifugal compressor case mount pad weld area on affected M601 engines due to reported cracks caused by non-conforming welding. It also prohibits installation of affected parts unless they have passed inspection and requires reporting inspection results to the manufacturer.
Why it matters
This directive is critical for aviation professionals because undetected cracks in the centrifugal compressor case could lead to engine separation and loss of aircraft control. Operators and maintenance organizations must ensure compliance to maintain aircraft airworthiness and safety. The directive also impacts parts management by restricting installation of non-inspected or cracked components.
More for Ge Aviation Czech M601
All 15- EASA AD 2025-0022Engine Fuel & Control — Fuel Control System — Additive ApplicationJan 21, 2025
- EASA AD 2024-0194Engine — Centrifugal Compressor Case — InspectionsOct 15, 2024
- EASA AD 2021-0264R1Engine — Critical Parts — ReplacementMar 28, 2023
- EASA AD 2021-0125R1Engine — Critical Parts — ReplacementJan 30, 2023
- EASA AD 2023-0020Time Limits / Maintenance Checks — Airworthiness Limitations Section — AmendmentJan 23, 2023
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New ADs and bulletins for Ge Aviation Czech M601, LET L-410, Air Tractor AT series and Grumman G-164, summarized like this page, every Monday.