As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEAR HANDLE WAS MOVED FROM UP TO OFF; 3 RED LIGHT AND GEAR PARTIALLY EXTENDED AT 296 KNOTS.<[01] NO PREVIOUS HISTORY. PERFORMED TEST OF LANDING GEAR POSITION INDICATING AND WARNING SYSTEM PER AMM 32-61-00. ALL INDICATIONS AND FUNCTIONS ARE NORMAL.