I noted the May 7 incident below at YYC in the Transport Canada daily incident reports. It reminded me of the recent AF A380 collision with the Comair CRJ-700 at JFK a few weeks ago. Assuming the description is correct, it's fortunate the 737-600 is the only 737NG model not certificated for winglets.
I'm also curious, assuming the facts are as stated, would the LH flight crew likely face any type of penalty for doing what they did? In this incident I assume it would also be important to know what taxiing instructions the LH aircraft had received from the ground controller, but presumably it's the crew's responsibility to ensure that a wing of their aircraft doesn't pass over any part of another stationary aircraft.
WestJet reported that their company flight WJA 720, a B737-600, was pushed back from Gate D50 at Calgary and was disconnected from the tow bar. At the same time, DLH 495, an A340-300 operated by Lufthansa, had been pushed back from Gate 44 and began to taxi away from the Terminal. The Lufthansa crew taxied into the vehicle service road (VSR) area to pass the B737 and ground crew observed about 6 feet of the wing of the Airbus pass over the Boeing's wing (without winglets) with about 2 to 3 feet of clearance. Ground crews observed that the main landing gear of the A340 had all crossed the Vehicle Service Road lines and the aircraft was taxiing through D50 and also into D49, where WestJet had all of their ground equipment stationed and were all getting fueled at the time with a number of ground personnel present. The observations of the company ground crew were corroborated by the B737 flight crew. The incident was reported to the Calgary Airport Authority.