As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE WARNING MESSAGE, ACTIVATED CABIN SMOKE DETECTOR. RAN QRH & CONTINUED TO SFO. FLIGHT ATTENDANT REPORTED A HAZE IN THE CABIN, BLEED CONFIGURATION WAS APU LOW. BOTH SMOKE MESSAGE & SMOKE DETECTOR LIGHT EXTINGUISHED 5 MINUTES LATER. PERFORMED LT & RT ENGINE RUN WITH REPORTED BLEED CONFIGURATION. COULD NOT DUPLICATE DISCREPANCY. NO CABIN SMOKE NOTED.