As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE GEAR UNSAFE LIGHT, FLIGHT DIVERTED. LGCIU GIVING ERRONEOUS PROXIMTY SENSOR MESSAGES ON UPPER ECAM. REPLACED NR 1 LGCIU. AT GEAR EXTENSION NO SAFE INDICATIONS FOR EITHER UPPER GEAR LIGHTS OR ON LOWER ECAM WHEEL. REPLACED NOSE GEAR DOOR OPENING SAFETY VALVE. ALL INDICATIONS NORMAL. CYCLED GEAR 10 TIMES. OPS NORMAL. OK FOR SERVICE.