Sfo controller reported of a taxiing issue. Pilot was given taxi clearance A-A1. Pilot reported they...

Attributes
ACN	1321256
Time
Date	201601
Local Time Of Day	1801-2400
Place
Locale Reference	SFO.Tower
State Reference	CA
Environment
Light	Night
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Ground
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 16
Events
Anomaly	Deviation - Procedural Clearance Ground Incursion Taxiway

Narrative:

Aircraft X was assigned runway 1R via A-A1. I turned my attention to placing flight progress strips delivered by clearance delivery; when I heard aircraft X say they turned and went F1-B. There were no other aircraft affected. I instructed the aircraft to continue B to the end; then A-A1.there is something about the complexity of B & a between east & F1 that just perplexes pilots. I am assuming that this is not a usual line crew; given the holiday; so there may be a lack of experience taxiing at sfo. With that said; they made a mistake and it could happen to anyone.

Original NASA ASRS Text

Title: SFO Controller reported of a taxiing issue. Pilot was given taxi clearance A-A1. Pilot reported they taxied via F1-B. Controller told the pilot to continue via B to A1. Controller reported about complexity of B & A and E & F1 that pilots have problems with.

Narrative: Aircraft X was assigned Runway 1R via A-A1. I turned my attention to placing flight progress strips delivered by CD; when I heard Aircraft X say they turned and went F1-B. There were no other aircraft affected. I instructed the aircraft to continue B to the end; then A-A1.There is something about the complexity of B & A between E & F1 that just perplexes pilots. I am assuming that this is not a usual line crew; given the holiday; so there may be a lack of experience taxiing at SFO. With that said; they made a mistake and it could happen to anyone.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Sfo controller reported of a taxiing issue. Pilot was given taxi clearance A-A1. Pilot reported they taxied via F1-B. Controller told the pilot to continue via B to A1. Controller reported about complexity of B & a and east & F1 that pilots have problems with.