What was found
TAKEOFF WARNING HORN SOUNDED DURING ENGINE POWER UP. REMOVED AND REPLACED ENGINE/ADJUSTED CONDITION LEVER MICROSWITCH.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
TAKEOFF WARNING HORN SOUNDED DURING ENGINE POWER UP. REMOVED AND REPLACED ENGINE/ADJUSTED CONDITION LEVER MICROSWITCH.