As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LANDING ROLLOUT & T/R APPLICATION A PWR LOSS TO THE FLT & ENGINE INSTRUMENTS WAS NOTED. THE COCKPIT WENT MOMENTARILY DARK. APPLIED T/R DURING TAXI IN AND NOTED KW NR 1 JUMPED TO 35 WHILE THE KWNR 2 DROPPED TO ZERO. REMOVED AND REPLACED R58S POWER RELAY AND REPLACED R112 ESSENTIAL POWER RELAY. REMOVED AND REPLACED LANDING GEAR ACCESSORY UNIT.