As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON SHORT FINAL--500 AGL--GPWS WENT OFF WITH TOO LOW GEAR. EXECUTED A GO-AROUND AND TRIED ANOTHER APPROACH WITH SAME THING HAPPENING. GPWS WENT OUT AT 50 FT AGL. ALL GEAR WERE DOWN AND 3 GREEN ON BOTH APPROACHES. REPLACED GPWS COMPUTER, CHKS GOOD.