As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OUTBOARD FLAP GAUGE SHOWED ASYMMETRY WHEN RETRACTING FLAPS FOR 15 DEGREE TO 5 DEGREE. RIGHT NEEDLE STAYED AT FLAPS 15, LEFT NEEDLE MOVED TO 5 DEGREE AND STOPPED. ON TOUCHDOWN FLAPS TRACKED NORMALLY TO FLAPS 25. T/S AND FOUND OUTBOARD FLAP INDICATOR INTERMITTENTLY SPLIT. REMOVED AND REPLACED OUTBOARD FLAP INDICATOR REF MM 27-52-021-2. ALL FLAP OPERATION NORMAL. OK FOR SERVICE.