What was found
THE LT MLG RED LIGHT AND GEAR DOOR OPEN LIGHT REMAINED ILLUMINATED AFTER TAKEOFF FROM IAH. THE GEAR WAS CYCLED THREE TIMES WITH NO CHANGE. THE AIRCRAFT WAS RETURNED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LT MLG BUNGEE CYLINDER PER MM 32-32-03, PAGE 201 TO 206, LEAK AND OPERATIONAL CHECKS WERE GOOD.