As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) E.L.T SWITCHED ON WITH NO REASON AND WOULD NOT RESPOND TO RESET, NOT FROM REMOTE SWITCH AND NOT DIRECTLY FROM E.L.T SWITCH. E.L.T BATTERIES NEEDED TO BE DISCONNECTED TO DEACTIVATE THE E.L.T ALARM. E.L.T REMOVED AND SENT BY DUCEY AVIONICS TO MANUFACTURER FOR DIAGNOSTIC. (TC# 20090922007)