As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#2126, TPA-JFK. (AIRCRAFT PERFORMED AN AIR TURN BACK TO TPA). 'AFT CARGO DOOR UNLOCKED; REMOVED AND REPLACED AFT CARGO DOOR PROX. SWITCH 32WV IAW A-320 AMM 52-71-12. OPS CHECK IS GOOD AT THIS TIME. NO DEFECT WAS NOTED. A/C OK FOR CONTINUE SERVICE.'