EASA Regulations for Viking Air CL-215-1A10

EASA AD CF-2021-51R1

Equipment / Furnishings — Water Bombing System — Un-commanded Water Door Opening

Airworthiness Directive CF-2021-51R1 addresses un-commanded water door opening issues in Viking Air Ltd. CL-215-1A10 (CL-215 variant) and CL-215-6B11 (CL-215T variant) aircraft. This directive mandates modifications to water door actuator microswitches, solenoid valve common grounds, and prohibits installation of certain solenoid valve parts without back EMF protection. It updates previous requirements to improve safety related to the water bombing system.