EASA Regulations for Bell Helicopter Textron Canada Limited 206B

2 airworthiness directives and regulations affecting Bell Helicopter Textron Canada Limited 206B.

EASA AD CF-2019-34

SUPERSEDED BY CANADIAN AD CF-2020-15

Canadian Airworthiness Directive CF-2019-34 addresses the failure risk of bolted fittings in the tail rotor drive shaft couplings on Bell Helicopter Textron Canada Limited models 206, 206A, 206A-1, 206B, 206B-1, 206L, 206L-1, 206L-3, and 206L-4. The directive mandates replacing MS21042 series nuts with NAS9926 series nuts to prevent potential tail rotor drive loss. This AD aims to enhance flight safety by mitigating the risk of tail rotor control failure due to nut cracking or loss.

Sep 27, 2019

Airworthiness DirectiveMaintenanceSafety MgmtBell 206Bell Helicopter Textron Canada Limited 206Bell Helicopter Textron Canada Limited 206ABell Helicopter Textron Canada Limited 206A-1Bell Helicopter Textron Canada Limited 206BBell Helicopter Textron Canada Limited 206B-1Bell Helicopter Textron Canada Limited 206LBell Helicopter Textron Canada Limited 206L-1Bell Helicopter Textron Canada Limited 206L-3Bell Helicopter Textron Canada Limited 206L-4

EASA AD CF-2018-23

Engine Turbine/Turboshaft — RPM (N2) Steady-State Operation Avoidance Range Limit

The Airworthiness Directive CF-2018-23 issued by Transport Canada mandates updated operating limitations for the engine turbine/turboshaft RPM (N2) steady-state operation avoidance range on Bell Helicopter Textron Canada Limited (BHTCL) model 206B and 206L series helicopters. This directive addresses issues related to Rolls Royce 250-C20 Series engine turbine wheel failures by expanding the RPM avoidance range and requiring amendments to the Rotorcraft Flight Manual and installation of a new decal. It applies specifically to certain serial numbers of model 206B and 206L helicopters and excludes those modified by specific Supplemental Type Certificates.

Aug 27, 2018

Airworthiness DirectiveFlight OpsMaintenanceSafety MgmtBell 206Bell Helicopter Textron Canada Limited 206BBell Helicopter Textron Canada Limited 206L