What was found
FLIGHT 5403 ANTI-ICE DUCT WARNING.COULD NOT DUPLICATE - REPLACED ALL 21 L/H WING DUCT LEAK SENSORS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5403 ANTI-ICE DUCT WARNING.COULD NOT DUPLICATE - REPLACED ALL 21 L/H WING DUCT LEAK SENSORS.