As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FAT - EN ROUTE SFO TO SBA, FLAP ASYMMETRY REPORTED IN LEVEL FLIGHT AT FL 230. LEFT NACELLE FLAP AT 15 DEGREES. AIRCRAFT DIVERTED TO FAT, LANDING WITHOUT INCIDENT. MAINTENANCE REPLACED FLAP CONTROL UNIT. FLAP SYSTEM OPERATIONAL CHECK NORMAL ON GROUND. AIRCRAFT RETURNED TO SERVICE. (M)