EASA Regulations for Ge Aviation Czech M601

14 airworthiness directives and regulations affecting Ge Aviation Czech M601.

EASA AD 2025-0022

Engine Fuel & Control — Fuel Control System — Additive Application

EASA Airworthiness Directive 2025-0022 is an official safety directive addressing the fuel control system of GE Aviation Czech M601, H75, H80, and H85 series engines. These engines are commonly installed on aircraft such as the Aircraft Industries L-410 and L-420, Air Tractor AT series, Allied Ag Cat G-164, Thrush Aircraft 510G and S-2R, Viking Air DHC-3 Otter, Zlin Z-37T, and PAC FU-24. The directive mandates the periodic application of a lubricity improver additive to the fuel control unit to prevent fuel deposit-related malfunctions.

Jan 21, 2025

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech H75, H80, H85Ge Aviation Czech M601

EASA AD 2024-0194

Engine — Centrifugal Compressor Case — Inspections

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.

Oct 15, 2024

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601Aircraft Industries L-410Air Tractor ATAllied Ag Cat G-164PZL-106 KrukDornier Do 28Thrush S-2RViking DHC-3 OtterZlin Z 37 TZlin Z 137 TPacific Aerospace FU-24

EASA AD 2024-0040-E

SUPERSEDED BY EASA AD 2024-0194

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.

Feb 8, 2024

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601LET L-410Air Tractor AT seriesGrumman G-164

EASA AD 2021-0264R1

Engine — Critical Parts — Replacement

EASA Airworthiness Directive 2021-0264R1 is a regulatory update addressing critical parts replacement for GE Aviation Czech M601 series engines installed on various aircraft including the Aircraft Industries L-410 and L-420, Air Tractor AT series, Allied Ag Cat G-164, Thrush S-2R, and Viking Air DHC-3 Otter. The directive focuses on ensuring the replacement and proper identification of affected compressor cases and drums to prevent engine failures. It mandates compliance with specific life limits and logbook corrections to maintain engine airworthiness.

Mar 28, 2023

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601Aircraft Industries L-410Aircraft Industries L-420Air Tractor AT seriesAllied Ag Cat G-164Thrush S-2RViking Air DHC-3 Otter

EASA AD 2021-0125R1

Engine — Critical Parts — Replacement

EASA Airworthiness Directive 2021-0125R1 is an updated regulatory requirement addressing the replacement of critical parts in GE Aviation Czech M601E engines, specifically those with centrifugal compressor case Part Number M601-154.61. This directive primarily affects aircraft such as the Aircraft Industries L-410 series equipped with these engines. It mandates the replacement of certain critical engine parts to ensure continued airworthiness and prevent engine failure.

Jan 30, 2023

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601Aircraft Industries L-410

EASA AD 2023-0020

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2023-0020 is an amendment addressing time limits and maintenance checks in the Airworthiness Limitations Section for GE Aviation Czech M601 series engines. This directive applies to all serial numbers of M601D, M601E, M601F, M601FS, and M601Z engines, which are installed on various aircraft including the Aircraft Industries L-410 series, Air Tractor AT series, Allied Ag Cat G-164 series, Pacific Aerospace FU-24, and others. The directive mandates compliance with updated maintenance tasks and life limits to ensure continued airworthiness.

Jan 23, 2023

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601Aircraft Industries L-410Air Tractor ATAllied Ag Cat G-164Pacific Aerospace FU-24

EASA AD 2022-0034

Engine — Outer Liner Dilution Tube — Inspection

EASA Airworthiness Directive 2022-0034 is an airworthiness directive addressing the inspection of the outer liner dilution tube on GE Aviation Czech M601 and H-series engines. It applies to multiple engine models including M601D, M601E, M601F, M601Z, H75, H80, and H85 series, which are installed on various aircraft such as the Air Tractor AT-400 and AT-500 series, Grumman G-164 series, and Viking Air DHC-3 Otter among others. The directive mandates repetitive borescope inspections of specific outer liner parts to detect cracks and prevent potential engine power loss.

Mar 4, 2022

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech H75, H80, H85Ge Aviation Czech M601Air Tractor AT-400Air Tractor AT-500Grumman G-164Viking Air DHC-3 Otter

EASA AD 2021-0154

SUPERSEDED BY EASA AD 2023-0020

EASA Airworthiness Directive 2021-0154 is an airworthiness directive addressing GE Aviation Czech M601 series engines installed on various aircraft including Aircraft Industries L-410 and L-420, Air Tractor AT series, Grumman G-164, PZL-106, Dornier Do 28, Thrush S-2R, Viking DHC-3 Otter, Zlin Z-37T, and PAC FU-24. The directive mandates replacement and life limit implementation for propeller shafts with specific part numbers to ensure continued airworthiness and prevent potential propeller shaft failure.

Jul 1, 2021

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601Aircraft Industries L-410Aircraft Industries L-420Air Tractor AT seriesGrumman G-164PZL-106Dornier Do 28Thrush S-2RViking DHC-3 OtterZlin Z-37TPAC FU-24

EASA AD 2021-0060

SUPERSEDED BY EASA AD 2023-0020

EASA Airworthiness Directive 2021-0060 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting GE Aviation Czech M601 engine models including M601D-1, M601D-2, M601D-11, M601D-11NZ, and M601Z. These engines are installed on various aircraft such as Air Tractor AT series, Allied Ag Cat G-164 series, Pacific Aerospace FU-24, PZL-106 Kruk series, RUAG Do 28 series, Thrush S-2R series, Viking DHC-3 Otter, and Zlin Z 37 T and Z 137 T. The directive mandates compliance with updated airworthiness limitations and maintenance tasks to ensure continued safe operation.

Mar 3, 2021

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601Air Tractor AT seriesAllied Ag Cat G-164 seriesPacific Aerospace FU-24PZL-106 Kruk seriesRUAG Do 28 seriesThrush S-2R seriesViking DHC-3 OtterZlin Z 37 TZlin Z 137 T

EASA AD 2021-0052

SUPERSEDED BY EASA AD 2021-0154

EASA Airworthiness Directive 2021-0052 is an airworthiness directive addressing GE Aviation Czech M601 series engines installed on various aircraft including the LET L-410 series, Air Tractor AT series, Grumman G-164, PZL-106, Dornier Do 28, Thrush S-2R, DHC-3 Otter, Zlin Z-37T, and PAC FU-24. The directive focuses on the replacement and life limit implementation of propeller shafts, specifically part numbers M601-6081.2, M601-6081.4, and M601-6081.6. It mandates compliance to ensure continued airworthiness and prevent propeller shaft failure.

Feb 24, 2021

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601LET L-410Air Tractor ATGrumman G-164PZL-106Dornier Do 28Thrush S-2RDHC-3 OtterZlin Z-37TPAC FU-24

EASA AD 2020-0201R2

Engine Fuel & Control — Fuel Control Unit — Replacement

EASA Airworthiness Directive 2020-0201R2 is an update addressing the replacement of fuel control units (FCU) on GE Aviation Czech M601 and H80 series engines installed on various aircraft including the Aircraft Industries L-410, Air Tractor AT series, Allied Ag Cat G-164, PZL-106 Kruk, RUAG Do 28, Thrush S-2R, and Viking Air DHC-3 Otter. The directive mandates replacement of affected FCUs due to improperly installed rubber cuff sealings that can cause engine power fluctuations and potential loss of control. It applies to all serial numbers of the listed engine models with specific affected FCU part and serial numbers detailed in the directive.

Jan 14, 2021

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech H75, H80, H85Ge Aviation Czech M601Aircraft Industries L-410Air Tractor AT seriesAllied Ag Cat G-164PZL-106 KrukRUAG Do 28Thrush S-2RViking Air DHC-3 Otter

EASA AD 2019-0143

Engine — Power Turbine Disc — Inspection / Replacement

EASA Airworthiness Directive 2019-0143 is an airworthiness directive addressing inspection and replacement of power turbine discs on GE Aviation Czech M601 series engines. It applies to multiple M601 engine variants installed on aircraft such as the Aircraft Industries L-410 series, Air Tractor AT series, Allied Ag Cat G-164 series, PZL-106 Kruk, RUAG Do 28 series, and Thrush S-2R series. The directive mandates inspections and replacement of certain power turbine discs identified by part and serial numbers to ensure continued safe operation.

Jun 13, 2019

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601Aircraft Industries L-410Air Tractor ATAllied Ag Cat G-164PZL-106 KrukRUAG Do 28Thrush S-2R

EASA AD 2019-0061

SUPERSEDED BY EASA AD 2019-0143

EASA Airworthiness Directive 2019-0061 is an airworthiness directive addressing certain GE Aviation Czech M601 series 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, RUAG Do 28 series, and Thrush S-2R series. The directive mandates inspection and potential replacement of power turbine discs with specific part numbers and serial numbers to prevent failure due to damage or non-conforming geometry.

Mar 25, 2019

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech M601Aircraft Industries L-410Air Tractor ATAllied Ag Cat G-164PZL-106 KrukRUAG Do 28Thrush S-2R

EASA AD 2017-0151R1

Engine — Exhaust System — Modification

EASA Airworthiness Directive 2017-0151R1 is a regulatory document addressing modification requirements for the exhaust system of GE Aviation Czech M601, H75, H80, and H85 series engines. These engines are commonly installed on aircraft such as Thrush Aircraft Inc. S-2R, PZL-106 Kruk, Air Tractor AT-300/400/500 series, Allied Ag Cat G-164 series, RUAG Do 28, and Aircraft Industries L-410. The directive mandates modifications to prevent potential power turbine or quill shaft spline failures that could lead to engine overspeed and subsequent safety hazards.

Dec 5, 2018

Airworthiness DirectiveMaintenanceSafety MgmtGe Aviation Czech H75, H80, H85Ge Aviation Czech M601Thrush Aircraft Inc. S-2RPZL-106 KrukAir Tractor AT-300Air Tractor AT-400Air Tractor AT-500Allied Ag Cat G-164RUAG Do 28Aircraft Industries L-410