What was found
GEAR HANDLE RAISED, 4 RED LIGHTS REMAINED & FELT DRAG ON A/C. CHECK LIST ACCOMPLISHED & GEAR RAISED A 2ND TIME, ALL LTS RED INCLUDING CONFIG PAGE. LANDED 4 GREEN. PERFORMED GEAR SWINGS TO VERIFY OPERATION AND TROUBLE SHOOT. FOUND THE ALTERNATE GEAR LEVER SWITCH TO BE BAD. REMOVED AND REPLACED SWITCH IAW AMM 32-32-01-4. PERFORMED NORMAL AND ALTERNATE GEAR SWINGS IAW AMM 32-31-00-5. ALL OPERATIONS AND INDICATIONS NORMAL. SEE SDR # 19-2214. SWITCH PN H20-24B CPN 0030004.