What was found
LG LEVER DISAGREE LANDING IAD. NOSE WHEEL INDICATED NOT DOWN & LOCKED. PERFORMED A GO AROUND RAN QRH AT MESSAGE CLEARED WITH 3 GREEN INDICATION. PERFORMED UPLOCK BOX BLEEDING. IAW AMM 32-31-05-870-801-A. BLED UPLOCK BOX UNTIL FLUID RAN CLEAR WITHOUT BUBBLES. INSPECTED NLG DOWN LOCK & UPLOCK SENSORS FOR PROPER INSTALLATION REF AMM 32-61-01/400. CLEARANCE MEASURED AT 1.219MM (WITHIN LIMITS). SERVICED NLG STRUT IAW AMM 12-14-03-610-802-A. JACKED ACFT & PERFORMED GEAR SWING IN AN ATTEMPT TO REPRODUCE CONDITION IAW AMM 32-31-00-720-801-A. EXTENSION & RETRACTION SYS FUNCTIONAL CHECK. PERFORMED MULTIPLE GEAR SWINGS - NO DEFECTS NOTED. MONITORED TIME FOR EXTENSION (ABOUT 11 SECS) & RETRACTION (ABOUT 17 SECS) WITHIN LIMITS - ALL INDICATIONS NORMAL. NO DISAGREEMENTS. PERFORMED FIM TASK DISAGREEMENT BETWEEN NLG DOWNLOCK SENSOR LEVEL IAW FIM 32-61-00-810-812-A. NO CAS DISAGREEMENT MESSAGE, PERFORMED EXTENSION AND RETRACTION IAW AMM 32-31-00-720-801-A, NO DEFECTS NOTED. PERFORMED EMERGENCY EXTENSION SYS IAW AMM 32-35-00-820-801-A, ADJUSTMENT, ALL RIGGING PINS MOVE FREELY, NO ADJUSTMENTS NEEDED. FIM REQUIRES REPLACEMENT OF NLG LDG UPLOCK BOX (PREVIOUSLY REPLACED), ALL OPS CHECK GOOD. NO LG LEVER DISAGREE CAS MESSAGE DISPLAYED. GEAR POSITION INDICATIONS NORMAL.