EASA AD 2020-0061
SUPERSEDED BY EASA AD 2021-0012
Summary
EASA Airworthiness Directive 2020-0061 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters AS 332 L2 and EC 225 LP models. It addresses issues with the windows jettisoning system on these helicopters, specifically targeting excessive friction between the window seal and airframe that could prevent window jettisoning during emergencies. The directive applies to all serial numbers except those with certain Airbus Helicopters modifications already embodied.
What Changed
EASA Airworthiness Directive 2020-0061 supersedes AD 2019-0107 and requires the removal of polytetrafluoroethylene (PTFE) skived film from window seals and the installation of silicone seals instead. This update expands the scope to additional helicopter groups not previously covered and retains the modification requirements from the earlier AD while introducing new compliance timelines based on helicopter group and operation type.
Why It Matters
This directive is critical for aviation professionals because it addresses a safety risk that could hinder emergency evacuation by preventing window jettisoning. Operators and maintenance organizations must ensure compliance to maintain airworthiness and regulatory approval. Failure to comply could compromise occupant safety and violate continuing airworthiness requirements under EU regulations.
What To Do
Operators of affected AS 332 L2 and EC 225 LP helicopters must modify the windows jettisoning system by removing PTFE film and installing silicone seals according to the applicable Airbus Helicopters Alert Service Bulletins. Compliance deadlines vary by helicopter group and operation, ranging from 110 to 250 flight hours or 6 months, whichever occurs first. After modification, helicopters are no longer subject to the requirements of EASA AD 2018-0039.
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