EASA 2020-0061

Supersedes and retains the requirements of EASA AD 2019-0107 and requires modification of the windows jettisoning system by removing the polytetrafluoroethylene skin between the window seal and the helicopter airframe, and installing silicone seals instead of seals currently installed on the helicopter cabin windows. The original AD stemmed from difficulties encountered jettisoning a window. Investigation revealed excessive friction between the window seal and the helicopter airframe. Airbus Helicopters since has developed modifications to address the issue.