EASA Regulations for De Havilland DHC-8-400

6 airworthiness directives and regulations affecting De Havilland DHC-8-400.

EASA AD CF-2020-39

Nacelles/Pylons — Main Landing Gear Side Brace Fitting to A-frame Joint — Fastener Holes Not Cold-worked

Canadian Airworthiness Directive CF-2020-39 addresses an issue with the nacelles/pylons on De Havilland Aircraft of Canada Limited DHC-8-400, -401, and -402 aeroplanes, specifically serial numbers 4081 through 4591. The directive focuses on the main landing gear side brace fitting to the A-frame joint where fastener holes were not cold-worked as required. This condition poses a risk of cracking and potential main landing gear collapse.

Oct 15, 2020

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

EASA AD CF-2020-01

Fuel System — Non-Conforming Installation of Electrical Bonding Jumpers

Canadian Airworthiness Directive CF-2020-01 addresses the non-conforming installation of electrical bonding jumpers on the fuel scavenge and vent lines of De Havilland Aircraft of Canada Limited models DHC-8-400, DHC-8-401, and DHC-8-402, serial numbers 4001, 4003, and subsequent. This directive mandates inspections and corrective actions to remove or modify these jumpers and brackets to prevent potential lightning strike induced fuel tank ignition. It also prohibits certain maintenance procedures that could lead to reinstallation of non-compliant bonding jumpers.

Jan 15, 2020

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

EASA AD CF-2019-36

Stabilizers — Elevator Power Control Unit (PCU) Arm Fittings Insufficient Fillet Radius

Canadian Airworthiness Directive CF-2019-36 addresses issues with the elevator power control unit (PCU) arm fittings on De Havilland DHC-8-400 series aircraft, specifically models -400, -401, and -402 with serial numbers 4001 and subsequent. The directive identifies nonconforming fillet radii on certain PCU arm fittings that could lead to premature fatigue failure and potential loss of elevator control. It mandates inspections and replacements to ensure airworthiness and safety.

Oct 25, 2019

Airworthiness DirectiveMaintenanceSafety MgmtDe Havilland Canada DHC-8De Havilland DHC-8-400

EASA AD CF-2017-05R2

Fuel System — Motive Flow Line Fouling, Motive Flow Line and Pressure Relief Line Broken P-Clamps, and Vent Line TeflonTM Sleeve Installation

The Canadian Airworthiness Directive CF-2017-05R2 titled 'Fuel System — Motive Flow Line Fouling, Motive Flow Line and Pressure Relief Line Broken P-Clamps, and Vent Line TeflonTM Sleeve Installation' applies to De Havilland DHC-8-400 series aircraft with serial numbers 4001, 4003, and subsequent. It addresses issues related to broken P-clamps on fuel system lines, interference causing wear on the motive flow line, and improper installation of Teflon sleeves on vent lines that could lead to fuel tank ignition risks during lightning strikes.

Oct 1, 2019

Airworthiness DirectiveMaintenanceSafety MgmtDe Havilland Canada DHC-8De Havilland DHC-8-400

EASA AD CF-2010-30R2

Cracking of the Nacelle Attachment Fitting(s)

The Canadian Airworthiness Directive CF-2010-30R2 addresses cracking issues in the nacelle attachment fittings of De Havilland Aircraft of Canada Limited model DHC-8-400, -401, and -402 aeroplanes, serial numbers 4001 and subsequent. It mandates inspections and modifications to ensure structural integrity and safe landing operations. The directive applies to specific part numbers of nacelle attachment fittings and outlines inspection and replacement procedures.

Aug 1, 2019

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

EASA AD CF-2014-08R1

Doors — Translating Doors Loose Bolts

The Airworthiness Directive CF-2014-08R1 is issued by Transport Canada and applies to De Havilland Aircraft of Canada Limited model DHC-8-400, -401, and -402 aeroplanes with serial numbers 4001 through 4530. It addresses the issue of loose bolts in the translating door crank assemblies, which can prevent emergency exits from opening. This directive mandates inspections and modifications to ensure the secure retention of door crank assembly bolts on emergency and reclassified doors.

Aug 1, 2019

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