EASA Regulations for Bombardier DHC-8-401

2 airworthiness directives and regulatory documents affecting Bombardier DHC-8-401.

EASA AD CF-2019-06

Fuselage — Non-Conforming Keel Tension Fittings and Stringer End Fittings

The Canadian Airworthiness Directive CF-2019-06 addresses non-conforming keel tension fittings and stringer end fittings on Bombardier Inc. DHC-8-401 and DHC-8-402 aircraft with specific serial numbers. This directive mandates inspections and eventual replacement of these fittings to ensure structural integrity of the fuselage. It applies to affected aircraft to prevent premature cracking and corrosion in critical fuselage joints.

Mar 1, 2019

Airworthiness DirectiveMaintenanceSafety MgmtDe Havilland Canada DHC-8Bombardier DHC-8-401Bombardier DHC-8-402

EASA AD CF-2011-24R1

Wings - Wing to Fuselage Attachment Joints - Barrel Nut Cracking

Airworthiness Directive CF-2011-24R1 addresses the issue of barrel nut cracking in the wing to fuselage attachment joints on Bombardier Inc. DHC-8-400, -401, and -402 aeroplanes, serial numbers 4001 through 4437. This directive mandates inspections and replacement of barrel nuts to prevent structural integrity compromise caused by hydrogen embrittlement. It introduces a design change involving new Inconel 718 barrel nuts and related hardware to enhance durability.

Jan 28, 2019

Airworthiness DirectiveMaintenanceSafety MgmtDe Havilland Canada DHC-8Bombardier DHC-8-400Bombardier DHC-8-401Bombardier DHC-8-402