Sleepy pilots or...? Curt Lewis

In July, Air Canada almost landed on the taxiway at SFO. What`s wrong with AC and SFO? (Ed.)

Incident: Canada A320 at San Francisco on Oct 22nd 2017, landed despite go around instructions

An Air Canada Airbus A320-200, registration C-GPWG performing flight AC-781 from Montreal,QC (Canada) to San Francisco,CA (USA), was on final approach to San Francisco's runway 28R, when the crew reported on tower and was cleared to land on runway 28R, the crew properly acknowledged the landing clearance. Another aircraft was trailing the Air Canada A320 for landing on runway 28R. Tower just wanted to instruct the previous landing to roll down to taxiway D when he saw the aircraft had already joined taxiway T. The controller therefore instructed the aircraft to hold short of runway 28L on taxiway T. As result tower instructed "Air Canada seven eighty one, go around", silence for 2 seconds, tower repeated ""Air Canada seven eighty one, go around", again silence. In total the tower transmitted 5 instructions "Air Canada seven eighty one, go around", however did not receive any response, the aircraft continued the landing. After landing tower called Air Canada three times, after the third call the crew answered stating they had problems with the radio, the tower commented "that's pretty evident", then issued taxi instructions requesting the aircraft to taxi as close as they could up to the preceding aircraft at the crossing point taxiway T runway 28L. The third aircraft on final for runway 28R was able to land without need for a go around. The next approach for runway 28L was reassigned runway 28R enabling the controller to clear the three waiting landed aircraft to cross runway 28L.