Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Flight Crew Diverted
Aircraft; Environment - Non Weather Related; Procedure
At cruise amber alert R forward window heat. Completed checklist. The outer window pane shattered. Called Dispatch and Maintenance. Diverted to ZZZ. Picked up another aircraft and continued to ZZZZ.Cause: window heat failure.
I was the Relief Pilot on break when I was asked to go to the cockpit by the A FA. He had received this request from the cockpit. The right front outer windshield pane was cracked/shattered. The Captain and First Officer coordinated with Dispatch and we continued to ZZZ where we landed on Runway XXR without incident. The passengers and crew disembarked the aircraft without incident and proceeded to an adjacent gate from which the flight to destination was continued.Possible maintenance issue as the airplane was recently in storage (parked) at I believe ZZZ1.Ensure aircraft storage is performed at a base where inclement weather - especially heavy rain - is unlikely to occur.
Air carrier flight crew reported that an outer windshield pane shattered during cruise following a window heat failure.