As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R VALVE LIGHT ILLUMINATED WITH WING HEAT SELECTED ON DURING APPROACH. GROUNDED - YES. REMOVED AND REPLACED R/H WING THERMAL ANTI-ICE VALVE, REF B737-9 AMM 30-11-11-000-801 AND AMM 30-11-11-400-801. BONDING CK GOOD PER AMM 30-11-11. PERFORMED OPS TEST OF WING THERMAL ANTI-ICE VALVE WITH APU. OPS TEST PASSED. REF AMM 30-11-11-710-801.