As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX - FLIGHT 2094 - LEFT DE-ICE PRESSURE GAUGE SHOWS GREATER THEN 30 PSI. RETURNED TO THE GATE. MAINTENANCE PLACED THE SYSTEM ON MEL 30-8B. AIRCRAFT RETURNED TO SERVICE. REPLACED THE LT PRESSURE TRANSDUCER. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.