Narrative:

While at cruise flight; noticed the L1 window was electrical arcing and melting at the same time. Ran the QRH checklist and turned off electrical power to the window. Within 20 seconds the window shattered. I declared an emergency; diverted to the nearest suitable airport; and landed without incident.

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Original NASA ASRS Text

Title: A B757-200 declared an emergency and diverted due to an overheating and melting Captain's windshield.

Narrative: While at cruise flight; noticed the L1 window was electrical arcing and melting at the same time. Ran the QRH checklist and turned off electrical power to the window. Within 20 seconds the window shattered. I declared an emergency; diverted to the nearest suitable airport; and landed without incident.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.