Originally Posted by tracon
Narrative:
The crew of ACA 117, an A320 en route from Toronto to Calgary, declared an emergency and diverted to Winnipeg at 1534Z due to a cracked windshield on the Captain's side of the cockpit and which caused sparking in the windshield. A major standby was declared. ACA 117 landed on Runway 18 at 1554Z without incident. No other aircraft were inconvenienced. TSB has sent an investigator to examine the aircraft.
What is "sparking" in an aircraft's windshield?