As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE COWL VALVE STUCK OPEN DESCENDING THROUGH APROX. 12.000 FT. GROUNDED - YES. REMOVED AND REPLACED NR 1 THERMAL ANTI-ICE VALVE REF AMM 30-20-11-000-801 AND AMM 30-20-11-400-801. OPS & LEAK CHECK GOOD. NO FURTHER DEFECTS NOTED. RE-SECURED COWL ANTI-ICE VALVE ELECTRICAL CONNECTOR & UNLOCKED AND OPENED NR 1 ENGINE HIGH STAGE VALVE.