The Eglinton East LRT would run through Scarborough, while the Waterfront East LRT is set to run along Queens Quay between Bay and Cherry streets.

The aerospace giant, who was already working with revised targets due to production delays, was able to talk the TTC into accepting four streetcars that were not street ready as it became apparent that completed vehicles would not be possible.

TTC spokesman Brad Ross said the problem was caused by a "human error" that shouldn't have occurred.