B737-800
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 17
Communication Breakdown; Confusion; Situational Awareness; Troubleshooting
Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Taxiway
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented
Airport; Chart Or Publication; Human Factors; Company Policy
Ground Control was working moderate traffic; when at Local Assist; I heard them tell Aircraft X they were on the wrong taxiway. They were to take B to the end and join A; then A1 to the Runway. This has been an ongoing problem around Taxiway B where it transitions to F/F1 onto A when the aircrafts are not supposed to join A. There have been many attempts at redoing signs and repainting the area. I am not sure from the pilot's perspective what could be improved.The Ground Controller said to the pilot they would file a report if the pilot filed an ASAP. Don't hold your breath from this Ground Controller. I am just saying. I would be really interested in seeing what if anything a pilot would recommend to stop this from reoccurring.
SFO Tower Controller observed an aircraft deviate from its taxi clearance.