As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3474, CREW REPORTED AT 300 FEET AGL THEY GOT AURAL GPWS WARNING AND LANDING GEAR WOULD NOT COME DOWN WITH GEAR TOO LOW. WITH GEAR DOWN AND CONFIGURED CORRECTLY CREW DID A GO AROUND AND RECYCLED GEAR. TOWER CONFIRMED GEAR DOWN. REQUESTED CFR AND LANDED AIRCRAFT SAFELY. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED RADIO ALT UNIT IAW AMM 34-31-01. OPERATIONAL TEST GOOD. AIRCRAFT RETURNED TO SERVICE.