As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 SLAT POSITION INDICATOR INACCURATE, WITH SLATS EXTENDED INDICATOR SHOWS RETRACTED. AIR TURN BACK TO (IAH). FOUND CANNON PLUG LOOSE ON THE NR 3 SLAT ACTUATOR, SECURED CANNON PLUG SYSTEM OPS CHECK GOOD IN ACCORDANCE WITH M/M 27-81-1.