As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMF FLIGHT NR 2410: ALT FAILURE ON FO'S PFD. AIRCRAFT RETURNED TO BLOCK. MAINTENANCE PULLED AND RESET ICP2 (C6) CIRCUIT BREAKER. ALL INDICATIONS ON FO'S PFD NORMAL. COMPLETED OPS CHECK OF ICP IAW MTC 6316103. ALL CHECKS ARE GOOD. A/C IS CAT I AND PLACARD REFLECTS CAT I. MAINTENANCE CONTROL WAS BEEN NOTIFIED. NO PARTS REPLACED. AIRCRAFT WAS RETURNED TO SERVICE.