AN A320 WITH DUEL LGCIU FAILURES EXECUTED A GAR AND WORKING WITH MAINT WAS ABLE TO RECOVER CTL. AN EMER WAS DECLARED.

Narrative

ON CLBOUT OUT OF ZZZ; LNDG GEAR CTL AND INTERFAC UNIT #2 ECAM WAS ACCOMPLISHED AND INOP COMPONENTS NOTED AND REVIEWED FOR LNDG. FLT CONTINUED UNEVENTFUL UNTIL 5 MI FINAL WHEN GEAR HANDLE WAS LOWERED; ECAM LNDG GEAR CTL AND INTERFAC UNIT #1 AND LNDG GEAR CTL AND INTERFAC UNIT #2 INOP AND ENSUING DEGRADES CAME UP. 3 GREEN LNDG GEAR INDICATIONS WERE NOTED; HOWEVER; A GRAVITY EXTENSION IS CALLED FOR BY CHKLIST AND A LOT OF RELATED ITEMS CAME UP. CAPT ELECTED TO GO AROUND TO FULLY REVIEW CHKLIST; HOWEVER; GEAR LEVER WAS NOT TOUCHED DUE TO 3 GREEN INDICATIONS. REQUESTED TO HOLD OVERWATER TO ACCOMPLISH CHKLIST AND MAINT AND DISPATCH CONTACTED. FUEL STATUS APPROX 6000 LBS. MAINT DIRECTED CIRCUIT BREAKER CYCLING WHICH EVENTUALLY RESTORED LNDG GEAR CTL AND INTERFAC UNITS; HOWEVER; NOSEWHEEL STEERING INOP. MAINT ADVISED WE MAY NEED TO STOP ON RWY AND GET TOWED IN. PAX AND FLT ATTENDANTS NOTIFIED AND A NORMAL APCH AND LNDG ACCOMPLISHED. CAPT WAS ABLE TO GET OFF ON HIGH SPD TURNOFF AND STOP ACFT UNEVENTFULLY. NOSEWHEEL STEERING SWITCH RECYCLED AND NOSEWHEEL STEERING RETURNED. CAPT TAXIED ACFT TO GATE WITH NO FURTHER DELAYS. ARRIVED 19 MINS LATER THAN SCHEDULED WITH 3500 LBS FUEL. NOTE: ACFT ALREADY HAD 9 DEFERRED ITEMS BEFORE DEP FROM ZZZ BUT NONE CONCERNING GEAR.