What was found
PILOT SELECTED GEAR DOWN. GEAR REMAINED IN WHEEL WELL. PILOT USED EMERGENCY SYSTEM TO LOWER GEAR. LANDING FINE. AFTER A LENGTHY TROUBLESHOOT, DETERMINED THE GEAR MOTOR CIRCUIT BREAKER WOULD CONDUCT CURRENT IN A NO-LOAD SITUATION. UPON PLACING LANDING GEAR SELECTOR IN UP POSITION, CIRCUIT BREAKER WAS STOPPING ALMOST ALL CURRENT FLOW WITH NO BREAKER TRIPPING. REPLACED 30-AMP CIRCUIT BRE AKER, GEAR CYCLES FINE.