EASA Regulations for Air Tractor AT series

5 airworthiness directives and regulations affecting Air Tractor AT series.

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SUPERSEDED BY EASA AD 2024-0194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 2021-0154

SUPERSEDED BY EASA AD 2023-0020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SUPERSEDED BY EASA AD 2023-0020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 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