EASA Regulations for Viking Air DHC-6 (Twin Otter)

2 airworthiness directives and regulatory documents affecting Viking Air DHC-6 (Twin Otter).

EASA AD CF-2021-42

Engine Controls — Binding of Fuel Control Unit Push Rod End Bearings

Canadian Airworthiness Directive CF-2021-42 addresses the issue of binding in the fuel control unit (FCU) push rod end bearings on Viking Air Ltd. DHC-6 series 1 through series 400 aircraft, specifically those with lower FCU push rod assemblies part numbers C6CE1398-7, C6CE1398-3 with P/N VSC30-3A rod end bearings, or FAA PMA equivalents. The directive mandates inspections, functional checks, lubrication, and replacement with redesigned parts to prevent engine power control issues. This AD aims to ensure continued safe operation of affected aircraft by mitigating the risk of engine power reduction failure.

Dec 7, 2021

Airworthiness DirectiveMaintenanceSafety MgmtViking Air DHC-6 (Twin Otter)Viking Air DHC-6

EASA AD CF-2020-45R1

Flight Controls — Loose Rudder Pedal Torque Tube Quadrant Riveted Connection

The Canadian Airworthiness Directive CF-2020-45R1 addresses a flight control issue involving loose riveted connections in the rudder pedal torque tube quadrant assembly on Viking Air Ltd. DHC-6 series 1, 100, 110, 200, 210, 300, 310, 320, and 400 aircraft with serial numbers 001 through 987. This directive mandates inspections and corrective actions to ensure the integrity of the rudder control system and prevent potential loss of rudder control.

Apr 20, 2021

Airworthiness DirectiveMaintenanceSafety MgmtViking Air DHC-6 (Twin Otter)Viking Air DHC-6