http://avherald.com/h?article=4435cf0a
Incident: Air Canada A320 near Chicago on Sep 17th 2011, cracked windshield
An Air Canada Airbus A320-200, registration C-FGYL performing flight AC-791 from Toronto,ON (Canada) to Los Angeles,CA (USA) with 136 people on board, was enroute at FL340 about 90nm northwest of Chicago's O'Hare Airport when the first officer's windshield cracked. The crew descended the aircraft to FL230 and diverted to Chicago O'Hare for a safe landing about 25 minutes later.
The Canadian TSB reported the NTSB rated the occurrence a serious incident and requested the download of the black boxes. The window will undergo testing under supervision of the NTSB.
NAV Canada reported FAA staff had reported the windscreen shattered.
A replacement Airbus A320-200 registration C-GKOD reached Los Angeles with a delay of 5:45 hours.
http://flightaware.com/live/flight/A...425Z/CYYZ/KLAX