EASA Regulations for Bell Helicopter Textron 412EP

5 airworthiness directives and regulations affecting Bell Helicopter Textron 412EP.

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

EASA AD US-2020-02-11

Feb 17, 2020

Electrical Power - Static Inverters - Replacement

Airworthiness Directive 2020-02-11 is a final rule issued by the Federal Aviation Administration addressing Bell Helicopter Textron Inc. Model 412 and 412EP helicopters. It mandates the replacement of certain static inverters with improved versions to correct unsafe conditions caused by inverter failures. The directive applies specifically to static inverters with part numbers 412-375-079-101 or 412-375-079-103 having serial numbers 29145 or higher.

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

EASA AD US-2019-09-02

Jun 4, 2019

Engine Oil / Aircraft Fuel System - Oil / Fuel Check Valves - Replacement

Airworthiness Directive 2019-09-02 is a final rule issued by the Federal Aviation Administration addressing Bell Helicopter Textron, Inc. models 212, 412, 412CF, and 412EP. It mandates the replacement of certain engine oil and fuel check valves manufactured by Circor Aerospace, which have been found to crack or leak, potentially causing engine failure or fire. This directive expands previous requirements to include all affected helicopter models to ensure continued airworthiness and safety.

Airworthiness Directive
  • Bell Textron Inc. (Bti) 212
  • Bell Textron Inc. (Bti) 412
  • Bell Helicopter Textron 212
  • Bell Helicopter Textron 412
  • Bell Helicopter Textron 412CF
  • Bell Helicopter Textron 412EP

EASA AD 2014-0118R1

Sep 25, 2018

Main Rotor Drive — Engine-to-Transmission Drive Shaft Line Nuts — Inspection / Replacement

EASA Airworthiness Directive 2014-0118R1 is a regulatory document addressing the inspection and replacement of engine-to-transmission drive shaft line nuts on Bell Helicopter Textron Inc. 212, 412, and 412EP helicopter models. The directive focuses on nuts with part numbers MS21042L4 and MS21042L5, which were found to be susceptible to cracking due to a production defect causing hydrogen embrittlement. This AD mandates inspections and replacement procedures to prevent potential loss of main rotor power.

Airworthiness Directive
  • Bell Textron Inc. (Bti) 212
  • Bell Textron Inc. (Bti) 412
  • Bell Helicopter Textron 212
  • Bell Helicopter Textron 412
  • Bell Helicopter Textron 412EP

EASA AD US-2018-17-01

Aug 27, 2018

Superseded by FAA AD 2019-09-02

Airworthiness Directive 2018-17-01 supersedes AD 2017-15-02 and applies to Bell Helicopter Textron, Inc. Model 212, 412, 412CF, and 412EP helicopters. It addresses unsafe conditions related to certain Circor Aerospace engine oil and fuel check valves, part numbers 209-062-520-001 and 209-062-607-001, manufactured between October 2011 and March 2015, excluding those marked with "TQL". The directive requires inspection and replacement of these check valves to prevent potential engine failure or fire.

Airworthiness Directive
  • Bell Textron Inc. (Bti) 212
  • Bell Textron Inc. (Bti) 412
  • Bell Helicopter Textron 212
  • Bell Helicopter Textron 412
  • Bell Helicopter Textron 412CF
  • Bell Helicopter Textron 412EP

EASA SIB 2007-11

May 23, 2007

FAA SAIB SW-07-29 - Aeronautical Accessories, Inc. (AAI) High Skid Gear Crosstubes

FAA Special Airworthiness Information Bulletin (SAIB) SW-07-29 and EASA Safety Information Notice 2007-11 address potential cracking and premature failure of Aeronautical Accessories, Inc. (AAI) part number 412-321 series high skid gear crosstubes installed on Bell Helicopter Textron Model 412, 412EP, 412CF, and Agusta S.p.A. Model AB412 and AB412EP helicopters. These crosstubes, installed under AAI's Supplemental Type Certificate SR01052AT, may fail before reaching the FAA-approved life limit, posing safety risks during operations.

Safety Information Bulletin
  • Bell Helicopter Textron 412
  • Bell Helicopter Textron 412EP
  • Bell Helicopter Textron 412CF
  • Agusta S.p.A. AB412
  • Agusta S.p.A. AB412EP