As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LANDED ORD UNDER AMBER ALERT DUE TO FLAPS STUCK AT 15 DEGREES. INDICATOR NEEDLES WERE FOUND TO BE SPLIT - DISABLING FLAP OPERATION. FLAP INDICATOR REPLACED AND FLAP OPERATION TESTED. FLAP OPERATION NORMAL ON GROUND. NO FLAP OPERATIONAL PROBLEMS NOTED SINCE INDICATOR REPLACEMENT.