EASA Regulations for Bell 412

5 airworthiness directives and regulations affecting Bell 412.

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New ADs and bulletins for Bell 412, summarized like the ones below, every Monday.

EASA AD US-2022-20-14

Nov 29, 2022

Main Rotor Drive - Main Transmission Housing Assembly - Inspection

Airworthiness Directive 2022-20-14 is a final rule issued by the Federal Aviation Administration addressing Bell Textron Inc. helicopters including models 204B, 205A, 205A-1, 205B, 210, 212, 412, 412CF, 412EP, and various restricted category helicopters. This directive mandates repetitive inspections of the main transmission housing assembly for cracks, corrosion, and pitting due to reported cracks in the main transmission support case. The directive aims to ensure continued airworthiness and safety of these helicopter models by identifying and correcting potential structural issues.

Airworthiness Directive
  • 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
  • Bell 204B
  • Bell 205A1
  • Bell 205B
  • Bell 210
  • Bell 212
  • Bell 412
  • Bell 412CF
  • Bell 412EP

EASA AD US-2022-07-03

Apr 21, 2022

Rotors Flight Control - Collective Lever - Replacement / Life Limitation

Federal Register Volume 87, Number 56 (March 23, 2022) Airworthiness Directive 2022-07-03 is a final rule issued by the FAA addressing Bell Textron Inc. Model 412, 412EP, and 412CF helicopters. It requires adding a permanent hours time-in-service (TIS) penalty to certain collective levers due to fatigue life concerns identified during evaluation of helicopters equipped with the Strake and FastFin system. The directive prohibits installation of collective levers unless the penalty has been applied to ensure continued airworthiness.

Airworthiness Directive
  • Bell Textron Inc. (Bti) 412
  • Bell 412
  • Bell 412EP
  • Bell 412CF

EASA AD US-2020-12-10

Jul 9, 2020

Tail Rotor Blades - Inspection / Repair / Replacement

Airworthiness Directive 2020-12-10 is a final rule issued by the FAA addressing Bell Textron Inc. helicopters, specifically models 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP equipped with tail rotor blades part number 212-010-750. The directive focuses on inspecting these tail rotor blades for corrosion and pitting to prevent potential cracks and loss of control. It updates previous requirements by excluding certain newer tail rotor blades from inspection applicability.

Airworthiness Directive
  • Bell Textron Inc. (Bti) 205
  • Bell Textron Inc. (Bti) 212
  • Bell Textron Inc. (Bti) 412
  • Bell 205A1
  • Bell 205B
  • Bell 212
  • Bell 412
  • Bell 412CF
  • Bell 412EP

EASA AD 2020-0039

Feb 27, 2020

Fire Protection — Hand-held Fire Extinguishers — Replacement

EASA Airworthiness Directive 2020-0039 is an airworthiness directive addressing fire protection on various helicopter models including Bell 222, 230, 430, 204, 205, 212, 214, 412, Erickson S-64F, Kamov Ka-32A11BC, and Sikorsky S-58, S-61, S-76, and S-92 helicopters. The directive focuses on the replacement of certain Halon-free hand-held fire extinguishers manufactured by umlaut engineering GmbH that have a manufacturing defect. It mandates the removal and replacement of affected fire extinguishers to ensure continued airworthiness and safety.

Airworthiness Directive
  • Bell 222
  • Bell 230
  • Bell 430
  • Bell Textron Inc. (Bti) 204B
  • Bell Textron Inc. (Bti) 205
  • Bell Textron Inc. (Bti) 212
  • Bell Textron Inc. (Bti) 214ST
  • Bell Textron Inc. (Bti) 412
  • Centerpointe Aerospace, Inc S-58
  • Erickson Air-Crane S-64
  • Kamov KA32
  • Mcdermott 214 Holdings, 214
  • Sikorsky S-61
  • Sikorsky S-76
  • Sikorsky S-92
  • Bell 204
  • Bell 205
  • Bell 212
  • Bell 214
  • Bell 412
  • Erickson S-64F
  • Kamov Ka-32A11BC
  • Sikorsky S-58

EASA SIB 2007-25

Dec 6, 2010

WITHDRAWN / CANCELLED - TRANSPORT CANADA AD CF-2007-21R1 AND FAA AD 2007-19-53 HAVE BEEN ADOPTED BY EASA

The document titled 'WITHDRAWN / CANCELLED - TRANSPORT CANADA AD CF-2007-21R1 AND FAA AD 2007-19-53 HAVE BEEN ADOPTED BY EASA' is an EASA Safety Information Notice 2007-25 issued on 2007-09-17. It addresses tail rotor blade safety issues on various Bell helicopter models including the 204B, 205 series, 206 series, 206L series, 212, 222 series, 230, 407, 412 series, 427, and 430. The notice references Transport Canada Emergency AD CF-2007-2L1 and FAA Emergency AD 2007-19-53, which require inspections and corrective actions for tail rotor blades with missing balance weight screws.

Safety Information Bulletin
  • Bell 204B
  • Bell 205
  • Bell 206
  • Bell 206L
  • Bell 212
  • Bell 222
  • Bell 230
  • Bell 407
  • Bell 412
  • Bell 427
  • Bell 430