EASA Regulations for Allied Ag Cat G-164

9 airworthiness directives and regulations affecting Allied Ag Cat G-164.

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New ADs and bulletins for Allied Ag Cat G-164, summarized like the ones below, every Monday.

EASA AD 2024-0194

Oct 15, 2024

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.

Airworthiness Directive
  • Ge Aviation Czech M601
  • Aircraft Industries L-410
  • Air Tractor AT
  • Allied Ag Cat G-164
  • PZL-106 Kruk
  • Dornier Do 28
  • Thrush S-2R
  • Viking DHC-3 Otter
  • Zlin Z 37 T
  • Zlin Z 137 T
  • Pacific Aerospace FU-24

EASA AD 2021-0264R1

Mar 28, 2023

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.

Airworthiness Directive
  • Ge Aviation Czech M601
  • Aircraft Industries L-410
  • Aircraft Industries L-420
  • Air Tractor AT series
  • Allied Ag Cat G-164
  • Thrush S-2R
  • Viking Air DHC-3 Otter

EASA AD 2023-0020

Jan 23, 2023

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.

Airworthiness Directive
  • Ge Aviation Czech M601
  • Aircraft Industries L-410
  • Air Tractor AT
  • Allied Ag Cat G-164
  • Pacific Aerospace FU-24

EASA AD 2022-0234

Dec 1, 2022

Engine Controls — Propeller Governor — Replacement

EASA Airworthiness Directive 2022-0234 is an official regulatory document addressing the replacement of propeller governors on GE Aviation Czech M601, H75, H80, and H85 engines installed on single-engine aeroplanes such as the Air Tractor AT-400 and AT-500 series, Allied Ag Cat G-164 series, and Thrush Aircraft 510G and S-2R series. The directive mandates replacing certain propeller governors with updated serviceable parts to ensure continued airworthiness and safety.

Airworthiness Directive
  • Ge Aviation Czech H75, H80, H85
  • Ge Aviation Czech M601
  • Air Tractor AT-400
  • Air Tractor AT-500
  • Allied Ag Cat G-164
  • Thrush Aircraft 510G
  • Thrush Aircraft S-2R

EASA AD 2020-0201R2

Jan 14, 2021

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.

Airworthiness Directive
  • Ge Aviation Czech H75, H80, H85
  • Ge Aviation Czech M601
  • Aircraft Industries L-410
  • Air Tractor AT series
  • Allied Ag Cat G-164
  • PZL-106 Kruk
  • RUAG Do 28
  • Thrush S-2R
  • Viking Air DHC-3 Otter

EASA AD 2019-0143

Jun 13, 2019

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.

Airworthiness Directive
  • Ge Aviation Czech M601
  • Aircraft Industries L-410
  • Air Tractor AT
  • Allied Ag Cat G-164
  • PZL-106 Kruk
  • RUAG Do 28
  • Thrush S-2R

EASA AD 2019-0061

Mar 25, 2019

Engine – Power Turbine Disc – Inspection / Replacement

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.

Airworthiness DirectiveSuperseded
  • Ge Aviation Czech M601
  • Aircraft Industries L-410
  • Air Tractor AT
  • Allied Ag Cat G-164
  • PZL-106 Kruk
  • RUAG Do 28
  • Thrush S-2R

EASA AD 2017-0151R1

Dec 5, 2018

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.

Airworthiness Directive
  • Ge Aviation Czech H75, H80, H85
  • Ge Aviation Czech M601
  • Thrush Aircraft Inc. S-2R
  • PZL-106 Kruk
  • Air Tractor AT-300
  • Air Tractor AT-400
  • Air Tractor AT-500
  • Allied Ag Cat G-164
  • RUAG Do 28
  • Aircraft Industries L-410

EASA SIB CE-11-40

Jun 16, 2011

Allied Ag Cat Productions, Inc. (formerly Grumman, Schweizer) G-164 series — Potential Cracking in the Rudder

The Special Airworthiness Information Bulletin SAIB: CE-11-40 informs owners, operators, and maintenance personnel of Allied Ag Cat Productions, Inc. G-164 series airplanes about potential cracking in the rudder main spar tube. This bulletin covers models G-164, G-164A, G-164B (including variants with 73” wing gap and turbocharged versions), G-164C, and G-164D under Type Certificate Data Sheet 1A16. The FAA does not consider this an unsafe condition requiring mandatory Airworthiness Directive action at this time.

Safety Information Bulletin
  • Allied Ag Cat G-164