What was found
AFTER TAKEOFF, RECEIVED GEAR DISAGREE WARNING, NLG BOX WAS RED & NOSE DOOR WARNING MESSAGE. OCCURED IN ICING. MESSAGE CLEARED ON ITS OWN. THEN DURING APPROACH, RECEIVED GEAR DISAGREE AGAIN WITH RED NLG BOX & NOSE DOOR WARNING. CYCLED GEAR AND PUT HYD 2B & 3B PUMPS ON, MESSAGE THEN CLEARED. ALL HYD INDICATIONS WERE NORMAL. NO OTHER MESSAGES. AIRCRAFT REMOVED FROM SERVICE INSTALLED GEAR PINS IAW AWAC SUPP 11-054A. REF 312214/4 FOR MEL CHRISTOPHER PYLE A&P 3019835 R/R'D WOFF W2 SENSOR HARNESS (PS46A) REF AMM 32-61-05 UP TO 4.A. BOTH PROX SENSORS REQ'D ADJUSTMENT AND OPS CK REF 32-61-00-710-801 REF NEW WORK CARD FOR ADJUSTMENT AND CLOSEOUT