What was found
ON TAKEOFF FROM ABQ, LEFT MAIN GEAR RED LIGHT WOULD NOT EXTINGUISH. CYCLED GEAR 2 TIMES, NO HELP. F/O VISUALLY CHECKED GEAR THRU VIEWING PORT AND GEAR APPEARED UP. CONTINUED TO SLC AND AFTER APPROX 15 MIN RED GEAR LIGHT EXTINGUISHED. REPLACED THE M986 AND M988 CIRCUIT CARDS, OPS GOOD PER M/M.