What was found
DURING CRUISE, ECAM DISPLAYED ANTI-ICE STBY PITOT. SHORTLY THERE AFTER L/G LGCIU 1 FAULT ILLUMINATED. CREW DID NOT WANT TO LAND AT SNA WITH 5,700 FEET OF RUNWAY AND NR 1 ENGINE THRUST REVERSER INOPERATIVE. AIRCRAFT DIVERTED TO LAX AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE LANDING GEAR PROXIMITY SENSOR (24GA), OPERATIONAL CHECK OK.