EASA Regulations for Leonardo AB412

13 airworthiness directives and regulations affecting Leonardo AB412.

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New ADs and bulletins for Leonardo AB412, summarized like the ones below, every Monday.

EASA AD 2026-0175

Sep 10, 2026

Rotor(s) – Main Rotor Yoke – Inspection

EASA Airworthiness Directive 2026-0175 is an airworthiness directive addressing the inspection of main rotor yokes on Leonardo S.p.A. AB412 and AB412 EP helicopters. It specifically targets main rotor yokes with part number 412-010-101-all that bear the Bell Helicopter Textron trademark or CAGE code 97499. The directive mandates a one-time inspection to detect mechanical damage that could lead to structural failure.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB412
  • Leonardo AB412 EP

EASA PAD 26-094

Aug 11, 2026

Rotor(s) – Main Rotor Yoke – Inspection

EASA Airworthiness Directive Proposal 26-094 is a proposed directive addressing the inspection of main rotor yokes on Leonardo S.p.A. AB412 and AB412 EP helicopters. It targets specific main rotor yokes manufactured by Bell Helicopter Textron that may have manufacturing defects leading to structural damage. The directive requires a one-time inspection and potential replacement of affected parts to ensure continued airworthiness.

Proposed AD
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB412
  • Leonardo AB412 EP

EASA AD 2024-0104

May 24, 2024

Fuselage — Left Upper Cap Angle — Inspection

EASA Airworthiness Directive 2024-0104 is an airworthiness directive addressing the inspection of the left upper cap angle, part number 212-030-191-1, on Leonardo AB212, AB412, and AB412 EP helicopters. The directive mandates repetitive inspections to detect cracks that could compromise the structural integrity of these helicopters. It applies to all serial numbers of the affected helicopter models and references specific service bulletins for inspection procedures.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB212
  • Leonardo AB412
  • Leonardo AB412 EP

EASA AD 2022-0258

Dec 20, 2022

Main Rotor Drive — Main Transmission Support Case — Inspection / Replacement

EASA Airworthiness Directive 2022-0258 is an airworthiness directive addressing the main rotor drive main transmission support case for Leonardo S.p.A. AB212, AB412, and AB412EP helicopters. It mandates inspections and possible replacement of the main transmission support case to detect and correct cracks caused by corrosion, which could compromise helicopter control.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB212
  • Leonardo AB412
  • Leonardo AB412EP

EASA AD US-2022-22-12

Nov 10, 2022

NOT ADOPTED - EASA DECISION ATTACHED

The document titled NOT ADOPTED - EASA DECISION ATTACHED is an official position from EASA regarding FAA Airworthiness Directive 2022-22-12. This FAA AD applies to certain helicopters modified by FAA STC SR01298NY, including Bell Textron Inc. type designs and Leonardo AB412 helicopters. EASA has determined that FAA AD 2022-22-12 is not eligible for adoption within the European Union because the FAA STC SR01298NY is not validated by EASA for all affected helicopter types, specifically Leonardo AB412 helicopters.

Agency Decision
  • Bell Textron Inc. (Bti) 204B
  • Bell Textron Inc. (Bti) 205
  • Bell Textron Inc. (Bti) 210
  • Bell Textron Inc. (Bti) 212
  • Bell Textron Inc. (Bti) 412
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Mcdermott 214 Holdings, 214
  • Bell Textron Inc. Helicopter
  • Leonardo AB412

EASA AD 2022-0084

May 11, 2022

Fuselage — Tailboom / Fin Spar Cap — Inspection

EASA Airworthiness Directive 2022-0084 is an airworthiness directive issued by EASA that applies to Leonardo S.p.A. AB212, AB412, and AB412EP helicopters. It mandates repetitive inspections of the left-hand fin spar cap, part number 212-030-447-117, and the adjacent fin skin to detect fatigue cracks that could compromise structural integrity. The directive provides inspection instructions based on Leonardo service bulletins SB 212-213 and SB 412-168.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB212
  • Leonardo AB412
  • Leonardo AB412EP

EASA AD 2022-0046

Mar 17, 2022

Fuselage — Tailboom Attachment — Inspection / Replacement

EASA Airworthiness Directive 2022-0046 is an airworthiness directive addressing inspection and replacement requirements for the tailboom attachment bolts and barrel nuts on Leonardo S.p.A. AB212, AB412, and AB412EP helicopters. The directive targets potential cracks and fractures in these components that could compromise the tailboom attachment. It applies to all serial numbers of the affected helicopter models.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB212
  • Leonardo AB412
  • Leonardo AB412EP

EASA AD 2022-0035

Mar 7, 2022

Fuselage – Tailboom Attachment – Inspection / Replacement

EASA Airworthiness Directive 2022-0035 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Leonardo S.p.A. AB212, AB412, and AB412EP helicopters. It addresses the inspection and replacement of tailboom attachment bolts and barrel nuts due to reports of cracking and fractures that could compromise the tailboom attachment. The directive mandates inspections, replacements, and torque checks to ensure continued airworthiness.

Airworthiness DirectiveSuperseded
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB212
  • Leonardo AB412
  • Leonardo AB412EP

EASA AD 2021-0126

May 10, 2021

Fuel / Oil — Check Valves — Inspection / Replacement

EASA Airworthiness Directive 2021-0126 is an official regulatory document addressing inspection and replacement requirements for fuel and oil check valves on Leonardo S.p.A. AB212, AB412, and AB412EP helicopters. It specifically targets oil check valves with Part Number 209-062-520-1 and fuel check valves with Part Number 209-062-607-1 manufactured by Circor Aerospace. The directive mandates inspections to detect cracks caused by incorrect torque application and requires replacement of affected parts to ensure continued airworthiness.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB212
  • Leonardo AB412
  • Leonardo AB412EP

EASA AD 2021-0072-E

Mar 12, 2021

Equipment / Furnishings — Hoist Support — Inspection / Replacement

EASA Airworthiness Directive 2021-0072-E is an emergency directive addressing the inspection and possible replacement of hoist support assemblies with Part Number 212-8800-02-1 installed on Leonardo AB412 and AB412EP helicopters. This directive applies to all serial numbers of these helicopter models and focuses on ensuring the structural integrity of the hoist support to prevent in-flight detachment. The directive mandates inspections and corrective actions to maintain airworthiness.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB412
  • Leonardo AB412EP

EASA AD 2020-0192

Sep 4, 2020

Electrical Power — Cable Assembly — Inspection

EASA Airworthiness Directive 2020-0192 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Leonardo S.p.A. AB412 and AB412EP helicopters. It mandates inspection of the electrical power cable assembly to detect potential chafing caused by an improperly installed protective grommet in the emergency bus interlock compartment. The directive aims to prevent autopilot failure and loss of avionics systems due to wiring damage.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB412
  • Leonardo AB412EP

EASA AD 2020-0062-E

Mar 17, 2020

Tail Rotor — Hub / Blade Assembly — Replacement

EASA Airworthiness Directive 2020-0062-E is an emergency directive addressing the replacement of tail rotor hub and blade assemblies on Leonardo AB212, AB412, and AB412EP helicopters. It targets specific tail rotor blades with part number 212-010-750-133 that may have manufacturing defects. The directive mandates inspection and replacement to ensure continued airworthiness and flight safety.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB212
  • Leonardo AB412
  • Leonardo AB412EP

EASA AD 2019-0311

Dec 19, 2019

Equipment / Furnishings — Emergency Flotation System Inflation Hoses — Inspection

EASA Airworthiness Directive 2019-0311 is a regulatory document addressing the inspection of Emergency Flotation System (EFS) inflation hoses on Leonardo S.p.A. AB139, AW139, AB412, and AB412EP helicopters. The directive targets specific part numbers of EFS semi-rigid cover assemblies to ensure proper inflation during ditching events. It mandates inspections to detect manufacturing defects that could block gas flow to flotation compartments.

Airworthiness Directive
  • Leonardo S.P.A. Helicopters AB139
  • Leonardo S.P.A. Helicopters AW139
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo AB139
  • Leonardo AW139
  • Leonardo AB412
  • Leonardo AB412EP