As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLAP RETRACTION AT 2 DEGREE ON CLIMBOUT, THE NR 4 RIGHT INBD FLAP DID NOT RETRACT. THE POSITION TEST SELECTOR INDICATED THE SAME. THE LEADING EDGE FLAPS POSITION IND LIGHTS WERE AMBER. PROCEEDED WITH RED TAB CHECK LIST AND MADE A NORMAL LANDING. REMOVED AND REPLACED NR 4 INBOARD LEADING EDGE FLAP POSITION INDICATOR PER MAINTENANCE MANUAL 27-82-1, OPS CHECK GOOD.