As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED: TAKE OFF WARNING SOUNDED ON T/O AT POWER UP. CLEARED RUNWAY AND CHECKED CONFIGURATION ALL NORMAL. T/O WARNING WARNING WOULD NOT REPEAT. PERFORMED TAKE OFF WARNING SYS TEST IAW AMM 31-51-00-730-803. A/C OK FOR SERVICE.