What was found
WHEN WING ANTI-ICE TURNED ON, L VALVE LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED L/H WING ANTI-ICE VALVE REF B737-9 AMM 30-11-11.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN WING ANTI-ICE TURNED ON, L VALVE LIGHT ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED L/H WING ANTI-ICE VALVE REF B737-9 AMM 30-11-11.