As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX FLIGHT NR 2417: NR 1 OIL PRESSURE ON ED DISPLAY FLUCTUATES FROM 67 PSI TO 0 PSI THEN INDICATES DASHES. OIL TEMP AND ITT NORMAL. AIRCRAFT RETURNED TO GATE. MAINTENANCE CLEANED CONNECTORS. GROUND RAN. NO FLUCTUATIONS NOTED. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.