Landing Approach to Taxiway at San Francisco International Airport (SFO). On 7 July 2017, an Air Canada Airbus A319 crew unintentionally made and almost completed a night visual final approach to the taxiway parallel to the runway on which they had been cleared to land at San Francisco. Despite seeing lights ahead on what they presumed was the runway, they continued the approach descending over the taxiway and overhead two aircraft on it which were awaiting full length departures before commencing a go around at approximately 85 feet agl and reaching a minimum height of 59 feet agl before beginning to climb away. The NTSB is conducting an Investigation.