What was found
THE LT MLG RED UNSAFE LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION DEPARTING SLC. THE GEAR WAS RECYCLED, BUT THE LIGHT DID NOT EXTINGUISH UNTIL SEVERAL MINUTES LATER. THE FLIGHT WAS CONTINUED WITHOUT FURTHER PROBLEM. MAINTENANCE COULD NOT DUPLICATE THE PROBLEM. THE M986 LOGIC CARD WAS REPLACED AS A PRECAUTIONARY MEASURE. A-SYSTEM CHECK WAS PERFORMED PER MM 32-09-20, PAGE 411 AND 412 AND OPERATION CHECKED GOOD.