AN A320 PILOT FAILED TO LOWER THE LNDG GEAR UNTIL 1000 FT. A GAR WAS EXECUTED. FATIGUE WAS AN ISSUE; THIS WAS THE END OF AN 8 FLT HR DAY WITH TSTMS.

Narrative

ON APCH TO ZZZ WE WERE VECTORED ONTO FINAL ABOUT 8 MI FROM ARPT (RWY 3) AND CLRED FOR A VISUAL APCH ON SPD APPROX 190 KTS AND FLAPS 2 DEGS. AS WE TURNED FINAL; I CALLED FLAPS 3 DEG GEAR DOWN; SIMULTANEOUSLY TWR CLRED US TO LAND. FO SET FLAPS TO 3 DEGS AND WE CONTINUED. I CALLED FOR FLAPS TO FULL AND FO SET FLAPS TO FULL; AND WE SLOWED TO FINAL APCH SPD. WE BOTH NOTICED THAT WE HAD APPROX 20 KT TAILWIND AND BRIEF DISCUSSION ENSUED. TWR WAS STILL RPTING NE WIND AT APPROX 3 KTS. AS WE APCHED APPROX 1000 FT I REALIZED THE LNDG CHKLIST HAD NOT BEEN COMPLETED; I SCANNED THE INSTS AND ECAM AND REALIZED THE GEAR WAS NOT YET EXTENDED. I INSTINCTUALLY CALLED FOR GEAR DOWN AND HANDLE WAS PLACED IN DOWN POS. AS GEAR WAS EXTENDING THE 'TOO LOW GEAR' WARNING WAS ACTIVATED AND WE EXECUTED A MISSED APCH. WE RETURNED IMMEDIATELY FOR A NORMAL LNDG ON RWY 3. AS A SIDE NOTE; I WOULD LIKE TO ADD THAT WE HAD JUST FLOWN AN 8 HR DAY. THE FIRST TURN WAS MEXICO CITY WITH TSTMS ENRTE AND ON THE FIELD BEFORE DEP AND THEN 3 RERTES BEFORE AND 1 ENRTE; WITH EXTENSIVE DEVS TO ZZZ. NO EXCUSES BUT JUST WHEN I THOUGHT WE WERE IN THE GREEN; WE WERE EVEN DEEPER INTO THE YELLOW; APCHING RED. AS THE CAPT; I SHOULD HAVE DOUBLE-CHKED ALL ACTIONS PERFORMED; AND MADE SURE CHKLISTS WERE COMPLETED IN A MORE TIMELY MANNER. I HAVE BEEN FLYING OVER 30 YRS ALWAYS TRY TO RUN AS STANDARD A COCKPIT AS I POSSIBLY CAN; I DO THINK FATIGUE; ESPECIALLY THIS DAY; PLAYED A LARGE PART IN THIS INCIDENT. EXTRA VIGILANCE DURING DAYS IDENTED AS HIGH WORKLOAD. THOUGH IT WAS VFR AND WE WERE RIGHT AT 1000 FT I SHOULD HAVE JUST EXECUTED THE MISSED IMMEDIATELY AND NOT GIVEN THE GEAR DOWN COMMAND.