As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2115 - CABIN DUCT HOT AND FLIGHT COMPARTMENT CAUTION LIGHTS ILLUMINATED. PERFORMED APPROPRIATE CHECKLIST. DUCT CAUTION LIGHTS EXTINGUISHED. DUCT TEMP REMAINS AT 40 DEGREES. MAINTENANCE COMPLIED WITH FUNCTIONAL CHECK OF THE TEMP CONTROL SYSTEM IAW DHC-8-200 AMM TASK 21-90-00-720-801. OPERATIONAL CHECK GOOD. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.