As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX FLIGHT NR 2096, SHORTLY AFTER TAKEOFF, YD FAIL MESSAGE OCCURRED. LESS THAN A MINUTE LATER RECEIVED AHRS DATA INVALID, ADI PITCH/ROLL MISMATCH. FO'S ADI SHOWED 15 DEGREES BANK OF OPPOSITE OF CAPTAINS AND FO ADI ALSO PITCHED TO 30-35 DEGREES NOSE UP WITH CAPTAINS AT 10 DEGREES NOSE UP. MAINTENANCE REPLACED THE SYMBOL GENERATOR AND NR 2 AHRS COMPUTER. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.