What was found
GEAR DISAGREE MASTER WARNING GEAR DOWN & 3 GREEN. PROX SYS FAULT 1, STATUS MESSAGE, IN THE AIR THAT WENT OUT ON THE GND. DEFERRED LG RETRACTION SYS IAW MEL 32-30-01. M PROCEDURES ACCOMPLISHED. PLACARD INSTALLED ENTERED IN MMO2. FOUND NR 1 NLG CENTERING SENSOR OUT OF RIG. RE-RIGGED SENSOR, OPERATIONS & FUNCTIONAL CHECKS NORMAL IAW AMM 32-32-10, GEAR SELECTOR VLV, AMM 32-31-01 LG CONTROL LEVER , AMM 32-61 -01 PSEU & AMM 32-61-05 ADJUSTMENT OF NLG CENTERING SENSOR.