What was found
AFTER FLAP RETRACTION, TRANSIT INDICATION LIGHT REMAINED ILLUMINATED ON FWD AND OVERHEAD PANELS. CYCLED FLAPS TWICE, NO HELP. AIRCRAFT RETURNED TO MDW AND MADE AN UNEVENTFUL LANDING. CYCLED SLATS/FLAPS PER BOEING M/M, VERIFIED PROBLEM TO BE INDICATION, DEFERRED AND CONTINUED PER MEL 27-3.