What was found
CREW REPORTED LG SYS WOW FAIL MSG AND LANDING GEAR WOULDN'T RETRACT AFTER TAKEOFF OUT OF CLT. CREW RETURNED TO FIELD AND EMERGENCY VEHICLES WERE DISPATCHED. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT PER EMB AMM, AND ACTIVATED NR 1 LT MLG STRUT SPARE SEAL, AND SERVICED STRUT, PER EMB AMM.