As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEA FLIGHT NR 2076, AFTER START AND UNFEATHER BOTH ENGINES NR 2 DEICE PRESSURE INDICATES 8 PSI AFTER SELECTING TO ISO READ 0. REPLACED NR 2 DEICE PRESSURE TRANSMITTER. AIRFRAME DEICE TESTS GOOD IAW DHC-8-200 MM 30-10-00. AIRCRAFT RETURNED TO SERVICE.