What was found
PDX FLIGHT NR 2495: AFTER EXTENDING GEAR FOR LANDING, L DOOR, N DOOR, R DOOR CAUTION LIGHT ILLUMINATED. GREEN NOSE AND RIGHT GREEN ILLUMINATED AND LEFT AMBER LIGHT ILLUMINATED. MAINTENANCE REMOVED AND REPLACED THE LT AND RT STABLIZER BRACE LOCK SPRING IAW AMM TASK 32-11-16-000-802 AND 32-11-16-400-802. RETRACTED AND EXTENDED THE LANDING GEAR IAW AMM TASK 32-31-000-867-801. ALL WORKS NORMALLY. AIRCRAFT RETURNED TO SERVICE.