As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN THE LANDING PHASE, ONCE THRUST REDUCED TO IDLE, LEFT COWL ANTI ICE & MASTER CAUTION LIGHTS FLICKERED ON/OFF 6-7X. DURING THRUST REVERSER DEPLOYMENT, ENGINE SPOOL UP FLICKERING STOPPED AND UPDATE, FLICKERING MORE FINAL TAXI. ACFT GROUNDED. PERFORMED NR 1 ENG COWL ANTI-ICE OPS TEST IAW AMM 30-21-00. OPS CK OK.