As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER TAKEOFF THE #2 (R) COWL VALVE OPEN LIGHT ILLUMINATED BRIGHT. COWL VALVE APPEARS TO BE STUCK OPEN. NO TAI INDICATION ABOVE N1, QRH COMPLIED WITH. GROUNDED - YES. REMOVED AND REPLACED #2 ENG INLET COWL THERMAL VALVE AS REQUIRED . LEAK CKD NO LEAKS NOTED OPS CKD GOOD UNLOCKED VALVE. REF B737-900 AMM 30-21-11-400-801.