As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START, NR 1 ENGINE ANTI-ICE COWL VALVE OPEN LIGHT ILLUMINATED BRIGHT BLUE AND AN AMBER TAI ILLUMINATED ON THE ENGINE INSTRUMENT PANEL. ACFT GROUNDED. REPLACED NR 1 ENGINE COWL TAI VALVE IAW AMM 30-21-11-000-801, LEAK & OPS CHECK GOOD.