What was found
THE ACFT WAS UNABLE TO FULLY EXTEND THE FLAPS FOR INITIAL APPROACH ON RUNWAY 28R. THE FLIGHT CREW ADVISED OF A MISSED APPROACH AND SET UP FOR ANOTHER ARRIVAL. ON THE NEXT APPROACH, THE FLAPS EXTENDED TO A POSITION BETWEEN THE 1 AND 2 SETTING. THE FLIGHT LANDED WITHOUT FURTHER INCIDENT ON RUNWAY 28R. ERS MET THE ACFT AS A PRECAUTION AND PERFORMED A BRIEF INSP, PRIOR TO THE ACFT TAXIING TO THE GATE. INSP FLAPS & SLATS W/NO ABNORMALS NOTED. RESET SFCC NR1 AND CYCLED FLAPS W/NO ABNORMALS, IAW AOM 10327-2. OK TO CONTINUE.