What was found
ON FINAL WITH FLAPS 35 & GEAR DOWN, DID NOT GET A GREEN BOX & HAD AN UNSAFE IND ON LT MLG SECONDARY IND ON CONFIG SYNOPTIC. ALL PRIMARY MLG INDS ON FWD PANEL GREEN. EXECUTED A GO AROUND & RETRACTED MLG & RAN QRH. SECOND APPROACH NORMAL WITH ALL MLG INDS GREEN & A GREEN BOX. RELEASED FOR SERVICE IAW MEL 32-61-01-02. LT SYNOPTIC GEAR IND SYS INOP. OBSERVE CARGO CONTAINER LOADING RESTRICTIONS & VERIFY AFFECTED POSITIONS ARE VOIDED ON WEIGHT & BALANCE. COMPLIED WITH MXP & MEL 32-61-01-02, ACFT OK TO CONTINUE. CLEARANCE CHKD DOWNLOCK PROXIMITY SENSOR (D1-82) FOR LT MLG SECONDARY POSITION IND SYS & WAS WITHIN LIMITS. R &R PROXIMITY SENSOR D1-82 AS A PRECAUTION & RTS TEST PASSED FOR LT MLG DOWNLOCK SENSOR.