As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENG "COWL VALVE OPEN" LIGHT DOES NOT ILLUMINATE WHEN SELECTED ON. ACFT GROUNDED. FOUND ENGINE AND WING CONTROL ENGINE 1 CIRCUIT BREAKER TRIPPED ON P18-2. ACCOMPLISHED CIRCUIT BREAKER PROCEDURE IAW 20-60-01. NO DEFECTS NOTED. DUE TO HISTORY SUSPECT ANTI-ICE VALVE IAW WDM 30-21-11. REPLACED NR 1 ENG COWL ANTI ICE VALVE IAW MM 30-21-11. ACCOMPLISHED BONDING CHECK IAW 30-21-11 WITHIN LIMITS. NR 1 COWL TAI VALVE LEAK AND OP CK GOOD, MM 30-21-11.