Engine — Centrifugal Compressor Case — Inspections
- Published
- Effective
- Deadline
- Replaces
- 2024-0040-E
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected M601 engines must perform an initial detailed visual inspection within 100 flight hours or 30 days after 29 October 2024, whichever occurs first, and continue with repetitive inspections every 100 flight hours, 300 take-offs, or 6 months. If cracks are detected, the affected part must be repaired or replaced before the next flight. Inspection results must be reported to GE Aviation Czech within 30 days of the initial inspection. Replacing the affected part with a serviceable part terminates the repetitive inspection requirement.
Summary
EASA Airworthiness Directive 2024-0194 is an airworthiness directive addressing inspections of the centrifugal compressor case on GE Aviation Czech M601 series engines. It applies to M601D, M601E, M601E-11, M601E-11A, M601E-11AS, M601E-11S, M601E-21, M601F, and M601FS engines installed on various aircraft including the Aircraft Industries L-410 series, Air Tractor AT series, Allied Ag Cat G-164 series, PZL-106 Kruk, Do 28 series, Thrush S-2R series, Viking DHC-3 Otter, Zlin Z 37 T and Z 137 T, and Pacific Aerospace FU-24. The directive mandates repetitive inspections of the affected centrifugal compressor case parts to detect cracks and prevent potential engine separation.
What changed
EASA Airworthiness Directive 2024-0194 supersedes AD 2024-0040-E and extends the compliance time for the initial detailed visual inspection of the affected centrifugal compressor case parts. It introduces requirements for repetitive inspections at specified intervals and retains corrective actions if cracks are found. This AD also clarifies installation conditions for affected parts and engines.
Why it matters
This directive is critical for aviation professionals to prevent engine failures caused by cracks in the centrifugal compressor case mount pad weld area. Operators and maintenance organizations must ensure timely inspections and corrective actions to maintain engine integrity and flight safety. Compliance with this AD helps avoid unscheduled engine removals and potential loss of aircraft control.
More for Ge Aviation Czech M601
All 15- EASA AD 2025-0022Engine Fuel & Control — Fuel Control System — Additive ApplicationJan 21, 2025
- EASA AD 2024-0040-EEngine – Centrifugal Compressor Case – InspectionFeb 8, 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
Get the next one by email
New ADs and bulletins for these 11 aircraft types, summarized like this page, every Monday.