As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX FLIGHT NR 2200, IMMEDIATELY AFTER TAKEOFF, NR 1 STALL WARNING CAUTION LIGHT ILLUMINATED STALL WARNING INOP. MAINTENANCE REPLACED THE NR 1 STALL WARNING TRANSDUCER. COMPLIED WITH FUNCTION TEST OF STALL WARNING SYSTEM IAW AMM 27-330-00-720-801. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.