The pilot who landed an Air Canada A320 at San Francisco Airport in October after being ordered to go around told FAA investigators the radio was set to the wrong frequency. Documents obtained by the Toronto Globe and Mail under a freedom of information request said the unidentified pilot, who is based in Vancouver, said the radio was set properly to get the landing clearance but was not on the tower frequency when the controller made six transmissions ordering the abort. How the frequency was changed was not discussed. The controller called for the go-around because the flight that landed ahead of the Air Canada plane hadn't cleared the runway.
This is a companion discussion topic for the original entry at https://www.avweb.com/news/radio-on-wrong-frequency-in-air-canada-incident