Narrative:

After a routine flight from sfo to stl, maintenance advised the tailskid had contacted the runway causing minor damage. Possible cause: a serious bump exists at the intersection of runway 1R and 28L sfo. Takeoff runway sfo was 1R and rotation was in progress at said point.

Google
 

Original NASA ASRS Text

Title: TAILSTRIKE ON ROTATION WHEN DEPARTING RWY 1R SFO.

Narrative: AFTER A ROUTINE FLT FROM SFO TO STL, MAINT ADVISED THE TAILSKID HAD CONTACTED THE RWY CAUSING MINOR DAMAGE. POSSIBLE CAUSE: A SERIOUS BUMP EXISTS AT THE INTXN OF RWY 1R AND 28L SFO. TKOF RWY SFO WAS 1R AND ROTATION WAS IN PROGRESS AT SAID POINT.

Data retrieved from NASA's ASRS site as of August 2007 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.