As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - CREW REPORTED WITH FLAPS AT 15 THE GEAR WARNING HORN SOUNDED. CREW WENT TO FLAPS AT 10 WARNING HORN QUIT, WENT BACK TO FLAPS AT 15 THE WARNING HORN SOUNDED AGAIN. CREW DID A GO AROUND AND DECLARED AN EMERGENCY. THE LANDING WAS UNEVENTFUL. THE A/C TAXIED TO THE GATE. MX PERFORMED LANDING GEAR AURAL WARNING SYSTEM TEST ON EACH GEAR SEPARATELY IAW A1B31022. OPS CHECK WAS GOOD, NO FAULTS FOUND.