What was found
DURING TAXI OUT, IT WAS DISCOVERED THAT THE TAKE OFF WARNING HORN WOULD NOT TEST. REMOVED AND REPLACED THE TIME DELAY RELAY. OPERATIONALLY CHECKED GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING TAXI OUT, IT WAS DISCOVERED THAT THE TAKE OFF WARNING HORN WOULD NOT TEST. REMOVED AND REPLACED THE TIME DELAY RELAY. OPERATIONALLY CHECKED GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.