As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COWL VALVE OPEN LIGHT STAYS ON BRIGHT WHEN THE ENG ANTI-ICE SWIT CH IS MOVED TO ON ENG-2 VALVE, ANTI-ICE OFF 29-3021-9-0002 8336 ON 0000 VALVE, ANTI-ICE OFF 29-3021-9-0002 8336 ON 29-3021-9-0002 0750 REMOVED AND REPLACED #2 ENG ANTI ICE VALVE REF FIM /FAULT ISOLATION REFERENCE: 30-21 TASK 805OPS NORMAL.