EASA Regulations for Bombardier BD-100

EASA AD CF-2018-11

Landing Gear — Uncommanded Nose Wheel Steering Due to Failure of the Steering Selector Valve

Canadian Airworthiness Directive CF-2018-11 addresses uncommanded nose wheel steering issues on Bombardier Inc. model BD-100-1A10 aeroplanes, serial numbers 20002 to 20744. The directive mandates modifications to the hydraulic system to prevent steering selector valve failures caused by hydraulic contamination. This safety measure aims to reduce the risk of runway excursions due to nose wheel steering malfunctions.