As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - DIVERSION - FLT 0663 - EN ROUTE FROM PHX TO SNA WHEN FLAPS WERE LOWERED TRAILING EDGE FLAPS SPLIT AND WOULD NOT EXTEND PAST 2 UNITS OF FLAPS DOWN, DIVERTED TO LAX WITH LONGER RUNWAY. MAINTENANCE REMOVED AND REPLACED THE LT TRAILING EDGE FLAP POSITION INDICATOR IAW BMM 27-58-41, OPERATIONAL CHECK WAS GOOD.