As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT APPROXIMATELY 1000 FT CPT PTTRIM SW FAIL MESSAGE APPEARED ON EICAS. A MINUTE OR TWO LATER A PTTRIM BACKUP SW FAIL MESSAGE APPEARED ON EICAS. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO FIELD IN PVD WITHOUT INCIDENT. MAINTENANCE DRAINED H20 FROM ADC SYSTEMS. ADC SYSTEMS OPS CHECK GOOD. TROUBLESHOT PITCH TRIM SYSTEMS PER FIM. NO DEFECTS WERE FOUND. BOTH BACK UP AND MAIN PITCH TRIMS OPS CHECK GOOD. AIRCRAFT WAS TEST FLOWN WITH NO DEFECTS NOTED.