As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER TWO ANTI-ICE VALVE OPEN INDICATION ILLUMINATED WITH THE SELECT SWITCH IN THE ON POSITION. WHEN ATTEMPTED TO OPEN THE VALVE, THERE WERE NO INDICATION OF EXHAUST GAS TEMPERATURE INCREASE. *S/D* REPLACED NUMBER TWO ENGINE ANTI-ICE VALVE AND UNLOCKED THE HI STAGE VALVE PER MM 30-21-11 AND MM 30-21-00. OPERATIONS CHECK GOOD, NO LEAKS.